199 Iptables Jobs

Overview: We are looking for a highly experienced Edge Network Engineer to lead complex edge, network, and cloud platform deployments. This role will act as a technical lead and subject matter expert during onboarding, migrations, and new platform integrations. Success in this role requires exceptional technical knowledge, strong communication skills, and the ability to lead both technical workstreams and customer expectations. The Edge Network Engineer position provides customer facing network design, implementation, configuration standardization as it relates to network routing protocols, switching and security methodology. As part of the Edge Network Engineering team, this role also serves as a Tier 4 escalation point from the global support organization. Experience with SD-WAN—especially Versa Networks—is a major asset and will elevate your candidacy. Key Responsibilities: Lead customer deployments of edge computing infrastructure, cloud integration, and SD-WAN platforms. Act as the technical point of contact for end-to-end implementation activities, including architecture planning, configuration, testing, and go-live support. Work closely with project managers, systems engineers, and customer stakeholders to align on design and timelines. Troubleshoot deployment issues across operating systems, hypervisors, containers, and networks. Develop automation scripts and reusable tooling to improve speed and consistency of deployments within the larger context of the company strategy. Document procedures, configurations, and lessons learned; contribute to internal knowledge bases. Mentor junior engineers and participate in internal enablement and cross-functional collaboration. Participate in periodic customer workshops to review implementation design as needed to support large-scale or complex rollouts. Qualifications: Extensive experience in Linux system administration and troubleshooting. Proficiency with Type 1 and Type 2 hypervisors (e.g., KVM, VMware). Familiarity with containerization technologies; experience with lightweight Kubernetes distributions (e.g., K3s) preferred. Strong understanding of networking principles including routing, VLANs, firewalls, DNS, NAT, Routing protocols and proxies. Hands-on experience configuring and managing network interfaces, both physical and virtual. Prior experience with SD-WAN deployment and management; Versa SD-WAN experience is a strong plus. Proficiency in using tools such as tcpdump, Wireshark, iptables, netstat, and other network diagnostic utilities. Experience with cloud service providers such as Azure or AWS, including VM provisioning, datastore configuration, and SSO setup. Comfortable working with REST APIs and using tools like Postman, Swagger, curl, and Python scripts for automation and testing. Awareness of secure deployment principles; familiarity with TPM, encryption, and measured boot is a plus (can be trained internally). Familiarity with infrastructure automation tools such as Ansible, Terraform, or Bash scripting. Experience with tools like ServiceNow, Jira, or other ITSM platforms for Project/Change/Incident management. Strong written and verbal communication skills with the ability to clearly document issues, escalate appropriately, and collaborate across teams. Preferred Background: 5+ years in edge infrastructure deployment, implementation engineering, or similar technical field. Experience supporting or deploying edge orchestration platforms (e.g., Zededa, Azure IoT Edge, AWS Greengrass). Experience with zero-touch provisioning, telemetry pipelines, or site/network architecture at the edge is a plus. Why Join Us? Work at the cutting edge of network operations, edge computing/networking, and satellite systems, enabling global connectivity in the most remote and demanding scenarios. Be part of a collaborative, fast-moving team that values technical depth, mentorship, and continuous learning. Working at Speedcast: At Speedcast, we want people that like adventure. Who are motivated by work that takes uncommon ingenuity and thinking outside the box. Who relish the idea of working in an industry undergoing massive transformation. If you want to be part of a global team responsible for connecting the world, then you’re in the right place. We're always pushing forward, never standing still. When people rely on you and your team to stay connected, it brings everyone closer together. We’re united by the adrenaline of high-stakes projects and our love of getting the job done right. You will experiment, learn and grow here, right alongside us, every single day. Find great opportunities to make an impact. We have a "one team, one dream" mentality. We work together to make great things happen. Working at Speedcast isn't just a job, it's a career that you can take to new levels. Top reasons why people love working at Speedcast: Our global presence – you get to work with clients and colleagues all over the world, in every continent Talented teammates – your co-workers are the best and brightest in the industry Industry leadership – be part of the latest advancements shaping the future of communications Ability to develop skills – work across departments to gain new skills and valuable experience Choose your environment – we have an environment to fit your temperament. Choose between a traditional desk job or work in the field. Grow your career - Guide your career in the direction you want. Gain new titles and responsibilities through our internal promotion system. Work on diverse projects – every day is different with our customers from a range of industries around the world Speedcast is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, veteran status, and other protected characteristics. The US EEO is the Law poster is available by visiting the below link: https://www.eeoc.gov/employers/upload/poster_screen_reader_optimized.pdf Speedcast does not accept or retain unsolicited résumés or phone calls and/or respond to them or to any third party representing job seekers.

Business Unit: Cubic Corporation Company Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people’s lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. Led by our talented teams around the world, Cubic is committed to solving global issues through innovation and service to our customers and partners. We have a top-tier portfolio of businesses, including Cubic Transportation Systems (CTS) and Cubic Defense (CD). Explore more on Cubic.com. Job Details: Job Summary : We’re looking for a Senior Systems Administrator who can blend strong technical know-how with a deep understanding of Linux and Azure environments to support and scale our growing infrastructure needs. Work Shift: 24x7 Rotational Experience: 5+ Years Primary Skills: Linux, Azure, Production Systems Secondary Skills: Windows Server, VMware Responsibilities : 🔹 Azure Administration Design, deploy, and manage resources in Azure using ARM templates and Terraform. Implement secure, scalable Azure environments with IAM and networking (VNets, NSGs, Load Balancers, Gateways). Monitor and optimize resources using Azure Monitor, Log Analytics, and Application Insights. Drive cost efficiency, disaster recovery planning, and resource utilization. Collaborate on cloud migrations, vulnerability remediation, and system modernization. Certification such as Azure Administrator Associate or Solutions Architect Expert is a huge plus! 🔹 Linux Administration (CentOS/Red Hat) Administer and maintain production-grade Linux servers, perform OS patching, tuning, and secure configurations (SELinux, iptables, etc.). Manage storage using LVM, configure NFS/SMB, and automate tasks via shell scripting or tools like Ansible/Chef. Support open-source tools like Nginx, Apache, SFTP/FTP, and assist in performance tuning and capacity planning. Troubleshoot system issues and work with hardware vendors when needed. 🔹 Windows + VMware (Secondary Skillset) Manage Windows Server environments alongside Hyper-V/VMware virtual infrastructure. Ensure backup, recovery, and business continuity measures are in place. Contribute to identity access management across hybrid environments. Minimum Job Requirements: Bachelor's degree, or equivalent years of experience in lieu of a degree. Five (5)+ years of hands-on experience in systems administration, with a focus on Azure and Linux. Proven expertise in enterprise IT environments, system performance, and infrastructure management. Ability to work in a rotational 24x7 support model. You bring a solution-driven mindset, stay updated with tech trends, and thrive in a collaborative, high-stakes environment. Worker Type: Employee

About PhonePe Limited: Headquartered in India, its flagship product, the PhonePe digital payments app, was launched in Aug 2016. As of April 2025, PhonePe has over 60 Crore (600 Million) registered users and a digital payments acceptance network spread across over 4 Crore (40+ million) merchants. PhonePe also processes over 33 Crore (330+ Million) transactions daily with an Annualized Total Payment Value (TPV) of over INR 150 lakh crore. PhonePe’s portfolio of businesses includes the distribution of financial products (Insurance, Lending, and Wealth) as well as new consumer tech businesses (Pincode - hyperlocal e-commerce and Indus AppStore Localized App Store for the Android ecosystem) in India, which are aligned with the company’s vision to offer every Indian an equal opportunity to accelerate their progress by unlocking the flow of money and access to services. Culture: At PhonePe, we go the extra mile to make sure you can bring your best self to work, Everyday!. And that starts with creating the right environment for you. We empower people and trust them to do the right thing. Here, you own your work from start to finish, right from day one. PhonePe-rs solve complex problems and execute quickly; often building frameworks from scratch. If you’re excited by the idea of building platforms that touch millions, ideating with some of the best minds in the country and executing on your dreams with purpose and speed, join us! SRE - System Engineer Job Description =================== Knowledge in Linux/Unix Administration Knowledge in networking Knowledge of wide variety of open source technologies/tools and cloud services Knowledge of best practices and IT operations in an always-up, always-available service Participate in oncall rotation. Good English communications skills Strong background in linux networking ( ip, iptables, ipsec ) Knowledge of working with MySQL A working understanding of code and script ( eg: Perl/Golang preferred ) Knowledge of automation/configuration management using either saltstack or equivalent Hands on experience in private and public cloud environments Knowledge of the following will be a plus: ================================ Implementation of cloud services on linux using kvm/qemu DCOS (mesos & mesos frameworks) aerospike ( nosql ) perl/golang galera openbsd Data center related activities ( Rarely needed ) PhonePe Full Time Employee Benefits (Not applicable for Intern or Contract Roles) Insurance Benefits - Medical Insurance, Critical Illness Insurance, Accidental Insurance, Life Insurance Wellness Program - Employee Assistance Program, Onsite Medical Center, Emergency Support System Parental Support - Maternity Benefit, Paternity Benefit Program, Adoption Assistance Program, Day-care Support Program Mobility Benefits - Relocation benefits, Transfer Support Policy, Travel Policy Retirement Benefits - Employee PF Contribution, Flexible PF Contribution, Gratuity, NPS, Leave Encashment Other Benefits - Higher Education Assistance, Car Lease, Salary Advance Policy Our inclusive culture promotes individual expression, creativity, innovation, and achievement and in turn helps us better understand and serve our customers. We see ourselves as a place for intellectual curiosity, ideas and debates, where diverse perspectives lead to deeper understanding and better quality results. PhonePe is an equal opportunity employer and is committed to treating all its employees and job applicants equally; regardless of gender, sexual preference, religion, race, color or disability. If you have a disability or special need that requires assistance or reasonable accommodation, during the application and hiring process, including support for the interview or onboarding process, please fill out this form. Read more about PhonePe on our blog . Life at PhonePe PhonePe in the news

About The Company TSC Redefines Connectivity with Innovation and IntelligenceDriving the next level of intelligence powered by Cloud, Mobility, Internet of Things, Collaboration, Security, Media services and Network services, we at Tata Communications are envisaging a New World of Communications Linux Administrator L3 Engineer ( IT Operations & Infrastructure ) Employment Type On-roll Reporting Manager Direct reports Role Purpose Linux Administrator L3 Engineer - IT Operations & Infrastructure Key Responsibilities / Accountabilities We are seeking an experienced Linux Administrator Engineer (L3) to lead and manage Linux-based infrastructure across on-premises and cloud environments. This role requires expertise in advanced Linux system administration, performance tuning, security hardening, automation, high availability (HA) configurations, and troubleshooting complex issues. The ideal candidate should have deep knowledge of RHEL, CentOS, Ubuntu, SUSE, Oracle Linux, along with cloud Linux workloads (AWS, GCP, Azure, OCI), containerization (Docker, Kubernetes, OpenShift), and automation (Ansible, Terraform, Python, Bash). Major Duties & Responsibilities Linux Infrastructure Design & Management: Architect, deploy, and maintain enterprise-grade Linux environments (RHEL, CentOS, Ubuntu, SUSE, Oracle Linux). Design and implement scalable, highly available, and secure Linux-based systems. Perform advanced troubleshooting, root cause analysis (RCA), and performance tuning. Ensure system reliability, patching, and security updates for production servers. Cloud & Virtualization Administration: Optimize cloud-based Linux instances, auto-scaling, and cost management strategies. Work with VMware, KVM, Hyper-V, OpenStack for on-prem virtualization. Automation & Configuration Management: Automate Linux system administration tasks using Ansible, Terraform, Bash, Python, PowerShell. Implement Infrastructure as Code (IaC) to automate provisioning and configuration. Develop cron jobs, systemd services, and log rotation scripts. Security & Compliance: Implement Linux system hardening (CIS benchmarks, SELinux, AppArmor, PAM, SSH security). Configure firewall rules (iptables, nftables, firewalld), VPN, and access control policies. Ensure compliance with ISO 27001, PCI-DSS, HIPAA, and NIST security standards. Conduct vulnerability scanning, penetration testing, and security audits. Networking & High Availability (HA) Solutions: Configure and manage DNS, DHCP, NFS, iSCSI, SAN, CIFS, VLANs, and network bonding. Deploy Linux clusters, failover setups, and high-availability solutions (Pacemaker, Corosync, DRBD, Ceph, GlusterFS). Work with load balancing solutions (HAProxy, Nginx, F5, Cloud Load Balancers). Monitoring & Performance Optimization: Set up real-time monitoring tools (Prometheus, Grafana, Nagios, Zabbix, ELK, Site 24x7). Optimize CPU, memory, disk IO, and network performance for Linux workloads. Analyze and resolve kernel panics, memory leaks, and slow system responses. Backup & Disaster Recovery: Design and implement Linux backup & disaster recovery strategies (CommVault, Veeam, Rsync, AWS Backup, GCP Backup & DR, OCI Vaults). Perform snapshot-based recovery, failover testing, and disaster recovery planning. Collaboration & Documentation: Mentor L1 and L2 engineers, provide escalation support for critical incidents. Maintain technical documentation, SOPs, and knowledge base articles. Assist in capacity planning, forecasting, and IT infrastructure roadmaps. Required Knowledge, Skills And Abilities Expert-level knowledge of Linux OS administration, troubleshooting, and performance tuning. Strong hands-on expertise in server patching, automation, and security best practices. Deep understanding of cloud platforms (AWS, GCP, Azure, OCI) and virtualization (VMware, KVM, Hyper-V, OpenStack). Advanced networking skills in firewalls, VLANs, VPN, DNS, and routing. Proficiency in scripting (Bash, Python, Ansible, Terraform, PowerShell). Experience with high-availability architectures and clustering solutions. Strong problem-solving, analytical, and troubleshooting skills for mission-critical environments. Preferred Additional Skills And Abilities Experience with Linux-based Kubernetes clusters (EKS, AKS, GKE, OpenShift, Rancher). Understanding of CI/CD pipelines and DevOps tools (Jenkins, Git, GitLab, ArgoCD, Helm). Knowledge of big data, logging, and analytics tools (Splunk, ELK Stack, Kafka, Hadoop). Familiarity with database management on Linux (MySQL, PostgreSQL, MariaDB, MongoDB, Redis). Qualifications And Experience Following are the key skills and experience expected out of the candidate Bachelors in Communications / Computer Science OR Software Engineering OR related technical degree OR Experience 7+ years of experience in Linux administration and enterprise infrastructure. Proven track record in designing, implementing, and optimizing Linux environments. Experience with multi-cloud Linux workloads, scripting, security, and high availability. Certifications (Preferred But Not Mandatory) Red Hat Certified Engineer (RHCE) or RHCSA LPIC-3 (Linux Professional Institute Certification Level 3)

Requirements 5+ years of experience in Linux Administration and troubleshooting. Certification (RHCE and AWS). Experience with AWS in an enterprise environment. Experience in Red Hat Satellite Server Administration. Experience with automation, including deployments and configuration management. OS and Hardware firmware upgrades. Must have experience in scripting such as Bash, Perl, Python, and Ansible. Installing and configuring of High Availability environment. Fine-tuning the system for optimal performance. Good Knowledge in Linux OS (Redhat, Oracle Linux, Cent OS, Ubuntu, OpenSuse, Debian) along with patching and Rollback. Good Knowledge of Web servers like Apache, Apache Tomcat, and NGINX. Good Knowledge of Firewalls (IPTables) and SELinux. Good Knowledge in installing and troubleshooting LDAP, DNS, DHCP, LVMs, and NFS. Good Knowledge of user administration, file systems, and Logs. Software package installation experience (deb, rpm, etc. ) Knowledgeable in Linux internals to debug and solve installation issues - environment, drivers, libraries, etc. Knowledge of databases like Oracle, MySQL, Postgres, etc. Set up and Configure Red Hat Satellite and Kickstart Servers for Red Hat Enterprise Linux 7/8/9 installs and RHN Push Updates. Good To Have Experience with Logic Monitor, Opsramp, Appd. Experience with Docker. Source code control (GitHub). Experience on AIX, Solaris. This job was posted by Shailendra Singh from PearlShell Softech.

Key Responsibilities : System Administration & Troubleshooting : Perform comprehensive Linux Administration and troubleshooting for 5+ years, ensuring system stability and optimal performance. Manage and fine-tune systems for optimal performance. Conduct OS and Hardware firmware upgrades effectively. Possess good knowledge in various Linux OS distributions (Redhat, Oracle Linux, CentOS, Ubuntu, OpenSuse, Debian) along with patching and rollback procedures. Install and troubleshoot LDAP, DNS, DHCP, LVMs, NFS. Perform user administration, manage file systems and logs. Experience with software package installation (deb, rpm, etc.). Knowledgeable in Linux internals to debug and solve installation issues related to environment, drivers, libraries, etc. Cloud & Automation Work with AWS in an enterprise environment, contributing to cloud infrastructure management. Automate deployments and configuration management using various tools. Strong experience in scripting using Bash, Perl, Python, and Ansible. Install and configure High Availability environments. Server & Network Management Possess good knowledge of Web servers like Apache, Apache Tomcat, NGINX. Good knowledge in Firewalls (IPTables) and SELinux. Specific Platform Administration Administer Red Hat Satellite Server. Setup and configure Red Hat Satellite and Kickstart Servers for Red Hat Enterprise Linux 7/8/9 installs and RHN Push Updates. Database Knowledge Possess knowledge of databases like Oracle, MySQL, Postgres, etc. Mandatory Skills & Certifications Linux Administration : 5+ years of experience in Linux Administration and troubleshooting. Certifications : RHCE and AWS certifications are mandatory. AWS Experience : Experience with AWS in an enterprise environment. Redhat Satellite : Experience in Redhat Satellite Server Administration. Automation & Scripting : Experience with automation (deployments, configuration management) and hands-on scripting in Bash, Perl, Python & Ansible. High Availability : Experience in installing and configuration of High Availability environment. OS Knowledge : Good knowledge in Linux OS (Redhat, Oracle Linux, CentOS, Ubuntu, OpenSuse, Debian) along with patching and Rollback. Web Servers : Good knowledge in Web servers like Apache, Apache Tomcat, NGINX. Security : Good knowledge in Firewalls (IPTables) and SELinux. Networking Services : Good knowledge in installing and troubleshooting LDAP, DNS, DHCP, LVMs, NFS. System Management : Good knowledge in user administration, file systems and Logs, and software package installation. Troubleshooting : Knowledgeable in Linux internals to debug and solve installation issues - environment, drivers, libraries, etc. Database Fundamentals : Knowledge of databases like Oracle, MySQL, Postgres, etc. Red Hat Specifics : Experience with Red Hat Satellite and Kickstart Servers setup and configuration. Good To Have Experience with monitoring tools like Logic Monitor, Opsramp, AppDynamics. Experience with Docker. Source code control (GitHub). Experience on AIX, Solaris (other Unix-like OS). (ref:hirist.tech)

Lead and mentor a team of Linux system administrators, assigning tasks and monitoring performance. Design, deploy, maintain, and optimize Linux-based infrastructure (RedHat, CentOS, Oracle Linux, Ubuntu). Manage critical services such as Apache, Nginx, MySQL/MariaDB, etc. Configure and maintain monitoring tools (e.g., Nagios, Zabbix, Prometheus, Grafana). Implement and enforce security practices: patching, hardening, firewalls (iptables/nftables), SELinux. Oversee backup and disaster recovery processes. Plan and execute migrations, upgrades, and performance tuning. Collaborate with cross-functional teams (Network, DevOps, Development) to support infrastructure needs. Define and document policies, procedures, and best practices. Respond to incidents and lead root cause analysis for system outages or degradations. Maintain uptime and SLAs for production environments. Experience with virtualization (KVM, VMware, Proxmox) and cloud platforms (AWS, GCP, Azure, or private cloud). Solid understanding of TCP/IP, DNS, DHCP, VPN, and other network services Hands-on experience working on Firewall like Sophos, fortigate Strong problem-solving and incident management skills. Job Types: Full-time, Permanent Application Question(s): What is your Notice Period? Work Location: In person Speak with the employer +91 7490078248

**ENGLISH COMMUNICATION MANDATORY** Technical Skills Required: 6 months to 1-year hands-on experience as a Linux Admin Experience with Linux servers (RHEL) in virtualized environments Scripting knowledge (Bash, Shell, etc.) Installing, configuring & maintaining services (Bind, Apache, Oracle, NGINX, etc.) Familiarity with load balancing, firewalls & infrastructure tools (iptables, HAProxy, IPVS) Knowledge of virtualization (vSphere), networking (servers/switches), and frameworks like Apache Tomcat, Oracle Java, PHP Experience with MySQL and infrastructure performance tuning Monitoring, automation, and configuration management expertise Process & Soft Skills: Willing to work in shifts (6-day work week) Strong communication skills (English & Hindi) Good documentation and reporting skills High attention to detail Team player shares knowledge, supports collaboration Professional conduct when dealing with clients or at client sites

Lead and mentor a team of Linux system administrators, assigning tasks and monitoring performance. Design, deploy, maintain, and optimize Linux-based infrastructure (RedHat, CentOS, Oracle Linux, Ubuntu). Manage critical services such as Apache, Nginx, MySQL/MariaDB, etc. Configure and maintain monitoring tools (e.g., Nagios, Zabbix, Prometheus, Grafana). Implement and enforce security practices: patching, hardening, firewalls (iptables/nftables), SELinux. Oversee backup and disaster recovery processes. Plan and execute migrations, upgrades, and performance tuning. Collaborate with cross-functional teams (Network, DevOps, Development) to support infrastructure needs. Define and document policies, procedures, and best practices. Respond to incidents and lead root cause analysis for system outages or degradations. Maintain uptime and SLAs for production environments. Experience with virtualization (KVM, VMware, Proxmox) and cloud platforms (AWS, GCP, Azure, or private cloud). Solid understanding of TCP/IP, DNS, DHCP, VPN, and other network services Hands-on experience working on Firewall like Sophos, fortigate Strong problem-solving and incident management skills. Skills: cloud,azure,selinux,firewall management,proxmox,apache,cloud platforms,oracle linux,dns administration,nginx,linux administration,infrastructure,hardening,incident management,aws,backup and disaster recovery,security practices,dhcp,mariadb,virtualization,grafana,disaster recovery,ubuntu,centos,patching,vmware,dns,kvm,prometheous,linux,redhat,gcp,nagios,prometheus,mysql,problem solving,firewalls,zabbix,vpn,tcp/ip

Open positons 1️⃣Engineering -> Embedded Systems Engineer +*]:mt-5 whitespace-pre-wrap"> The Dabba Network is a De centralised P hysical I nfrastructure N etwork that is building high speed wireless networks from the ground up in India. We enable humans & machines with internet connectivity at a price that they can afford. Internet and WiFi are critical to every human. Dabba is building the software, hardware & operating solutions to make internet access ubiquitous & affordable. We believe every household should come with internet, networking, and WiFi; just like water, gas, and electricity, the internet is a fundamental utility. Unlike traditional internet solutions, Dabba's approach is vertically-integrated across engineering and operations. We design and manufacture our own hardware, develop the entire software stack, and manage our users’ network. We are looking for people who are excited to work on complex problems, enjoy learning and working with others, and above all, are resilient and empathic. Join & help us build something amazing together for the next billion users. About The Role As a member of embedded platform team your goal is to: Build the hardware systems that create the physical foundation of Dabba. Build the operating systems that run on that hardware. Write the WiFi and networking firmware and drivers. Monitor how our hardware behaves and performs for continuous improvements. Fundamentally, you will provide the state-of-the-art foundation on which the rest of Dabba's product is built. We leverage existing Open Source Software whenever possible. Our users are both internal and external; in addition to our customers, we must consider the engineers who build on top of our platforms and the Operations Team that installs, monitors, and uses our devices. On any given project, you might debug new hardware, adjust the C-based firmware, write a new Linux driver, create a test framework, prototype APIs for Backend Engineers, and then wrap it up in a well-designed build system. Technology Stack We use Linux, OpenWRT, Buildroot, C, Python, make and Bash. We work on a variety of architectures, including: ARM, ath79 and x86-64. Currently, we work with QCA WiFi chips. Prospective team members must be flexible and able to learn new technologies, chips, and architectures. Other software team at Dabba use technologies like MERN, Postgres, and AWS. Having a knowledge of these and/or similar technologies, while not mandatory, will make it easier to work with other teams and provide the platforms they need. You might be a good fit if You believe in continual improvement of a product with a strong history of releases. You can intelligently debate the pros and cons of using OpenWRT vs. Yocto/OE because you have developed products using one or more of them. You have successfully upstreamed a patch to the Linux kernel, OpenWRT, Buildroot, or any other major project. You understand HostAPD, Portal, RADIUS, AAA, Identity and role management, Radsec Tunnels, Firewall, Iptables, Flow Classification, QoS, TLS, DTLS are your companions You have used a schematic, a datasheet, and a header file to determine and fix an error. You enjoy converting decimal to hex to binary. When you encounter a long list of magic incantations to build an image, you redesign the build system so all you have to do is type make. You have implemented a network protocol from the RFC or official specification. You add test cases to frameworks because of a known bug. You improve documentation instead of simply complaining that it is bad. You are thoughtful and measured in your approach to solving problems. You like to make LEDs blink. And you know both how and why they do. If you are interested in joining us We encourage you to reach out even if your experience doesn't precisely match this job description. We operate with a growth mindset and expect ourselves and our colleagues to have the capacity and desire for ongoing growth. Tell us a little bit about yourself, why you are interested in what we are doing, and any relevant experience you have. Attach your resume. Please include links to LinkedIn, Github, any code samples, or blog posts. email us with above information to career@wifidabba.com PreviousSmart Contract Engineer NextWireless Network Engineer Last updated 1 year ago

Open positons 1️⃣Engineering -> Wireless Network Engineer +*]:mt-5 whitespace-pre-wrap"> The Dabba Network is a De centralised P hysical I nfrastructure N etwork that is building high speed wireless networks from the ground up in India. We enable humans & machines with internet connectivity at a price that they can afford. Internet and WiFi are critical to every human. Dabba is building the software, hardware & operating solutions to make internet access ubiquitous & affordable. We believe every household should come with internet, networking, and WiFi; just like water, gas, and electricity, the internet is a fundamental utility. Unlike traditional internet solutions, Dabba's approach is vertically-integrated across engineering and operations. We design and manufacture our own hardware, develop the entire software stack, and manage our users’ network. We are looking for people who are excited to work on complex problems, enjoy learning and working with others, and above all, are resilient and empathic. Join & help us build something amazing together for the next billion users. About The Role As a member of Network team your goal is to: Implementing network features that solve real problems, helping end-users utilise the network effectively, efficiently, and in novel ways. Designing and implement routing protocol improvements for network appliances Building a playbook for automating provisioning, installations and support Handling software & hardware upgrades in the field Collaborating with our backend team on connecting Dabba devices to Dabba’s cloud for command & control. Collaborating with our operations & support teams on tools we can use to improve network operations proactively and telemetry we can share with our customers to give them insight into the value of the Meter service Fundamentally, you will provide the state-of-the-art foundation on which the Dabba's network is built in the real world. We leverage existing Open Source Software whenever possible. Our users are both internal and external; in addition to our customers, we must consider the engineers who build on top of our platforms and the Operations Team that installs, monitors, and uses our devices. You might be a good fit if Designed complex network systems, security and implementation of routing, switching, and firewalls Experience configuring and troubleshooting routing protocols Experience building mesh networks Comfort with troubleshooting Linux based systems Automation and scripting experience Experience with deep packet analysis and using Wireshark Experience troubleshooting and resolving network issues, and communicating to impacted users Experience with network hardware similar to: Cisco, Meraki, Aruba, Ruckus, Ubiquiti The ability to handle a high level of autonomy and responsibility You are comfortable working with OpenWRT. Have expertise in networking protocols (L2/L3), ideally running on network appliances. Understand and have experience with L4 to L7 services (firewall, NAT, VPN, IPv6, load balancing, and tunnelling protocols), algorithms and architectures. Understand the importance of stability and security for hardware that affects end-user connectivity & overall experience. Can methodically evaluate and test multiple possible solutions for a given problem and make a case for how to move towards a working solution. You understand HostAPD, Portal, RADIUS, AAA, Identity and role management, Radsec Tunnels, Firewall, Iptables, Flow Classification, QoS, TLS, DTLS are your companions Nice to have Certifications like CCNA, CWNA, CWAP, CWDP, CWSP, or CWNE If you are interested in joining us We encourage you to reach out even if your experience doesn't precisely match this job description. We operate with a growth mindset and expect ourselves and our colleagues to have the capacity and desire for ongoing growth. Tell us a little bit about yourself, why you are interested in what we are doing, and any relevant experience you have. Attach your resume. Please include links to LinkedIn, Github, any code samples, or blog posts. email us with above information to career@wifidabba.com PreviousEmbedded Systems Engineer NextDistributed Systems Engineer Last updated 1 year ago

Senior VPP Developer – Remote (India) with Future Relocation to Hyderabad Position: Senior VPP Developer (Remote, India) Experience Required: 7+ years in high-performance networking & data plane development Salary Range: ₹30 LPA – ₹60 LPA (Negotiable for exceptional candidates) Work Mode: Remote (Initial), with relocation to Hyderabad (after probation) Employment Type: Full-time About The Role We are looking for a Principal/Senior VPP Developer to lead the design and optimization of next-gen networking solutions using Vector Packet Processing (VPP), DPDK, and cloud-native technologies . This is a high-impact role where you will architect low-latency, high-throughput data plane systems for enterprise and cloud environments. You will work alongside top-tier engineers, open-source contributors, and cloud architects to build cutting-edge networking appliances, SDN/NFV solutions, and security frameworks . Detailed Responsibilities Core VPP & DPDK Development Design, develop, and optimize VPP plugins for custom packet processing. Enhance VPP performance (throughput, latency, scalability) using DPDK, AF_XDP, or eBPF. Debug packet drops, bottlenecks, and race conditions in VPP-based systems. Implement custom forwarding algorithms (L2 switching, L3 routing, ACLs, NAT). Work on SR-IOV, Vhost-user, and hardware offloads (NICs like Mellanox, Intel). Networking Protocols & Security Deep expertise in L2/L3 protocols (Ethernet, VLAN, IPv4/IPv6, ARP, ICMP). Implement L4 features (TCP/UDP optimization, connection tracking, load balancing). Develop IPsec VPNs, TLS/SSL acceleration, and firewall policies. Work on tunneling protocols (VXLAN, GRE, Geneve, MPLS). Cloud & Kubernetes Integration Integrate VPP with Kubernetes CNI plugins (Calico, Cilium, Multus). Optimize VPP for cloud-native workloads (AWS EKS, Azure AKS, GCP GKE). Experience with service meshes (Istio, Envoy) is a plus. Performance Benchmarking & Optimization Use TRex, iPerf, or MoonGen for traffic generation & benchmarking. Profile VPP using perf, VTune, or DPDK’s telemetry. Optimize CPU pinning, NUMA awareness, and memory allocation. DevOps & Automation Build CI/CD pipelines for VPP deployments (Jenkins, GitLab CI). Automate testing using Robot Framework, PyTest. Experience with Ansible, Terraform, or Kubernetes Operators is a plus. Leadership & Collaboration Lead architecture discussions and mentor junior engineers. Contribute to open-source projects (FD.io, DPDK, VPP). Work with cross-functional teams (Product, QA, SRE). Mandatory Skills & Tech Stack Core Expertise (Must Have) ✔ VPP (Vector Packet Processing) – Plugin development, performance tuning ✔ DPDK (Data Plane Development Kit) – Poll-mode drivers, memory management ✔ C/C++ (Advanced) – Memory optimization, multi-threading, lock-free algorithms ✔ Linux Networking – Kernel bypass, XDP, eBPF, tc, iptables Networking Protocols (Must Have) ✔ L2: Ethernet, VLAN, QinQ, MAC learning ✔ L3: IPv4/IPv6, ARP, ICMP, Routing (OSPF, BGP) ✔ L4: TCP/UDP optimizations, NAT, Load Balancing ✔ Security: IPsec, SSL/TLS, Firewall (nftables, conntrack) Cloud & Virtualization (Good to Have) ✔ Kubernetes Networking (CNI, Cilium, Calico) ✔ Public Cloud (AWS VPC, Azure Networking, GCP Hybrid Connect) ✔ Virtualization (KVM, QEMU, SR-IOV, Virtio) Tools & Debugging (Must Have) ✔ Traffic Generators: TRex, iPerf, MoonGen ✔ Debugging: GDB, Wireshark, perf, Valgrind ✔ Profiling: VTune, DPDK Telemetry, Flame Graphs Qualifications & Experience ✅ Bachelor’s/Master’s in CS, EE, or related field (PhD is a plus). ✅ 7+ years in networking/data plane development . ✅ 3+ years of hands-on VPP/DPDK experience (open-source contributions preferred). ✅ Strong background in Linux kernel networking, performance tuning, and distributed systems . ✅ Experience with cloud networking (AWS/Azure/GCP) is a plus . Why Join Us? 🚀 Work on bleeding-edge networking tech (VPP, DPDK, eBPF, Cloud-Native). 💻 100% remote initially, then relocate to Hyderabad (hybrid flexibility). 💰 Top-tier compensation (₹30L – ₹60L) + bonuses + stock options (for senior hires) . 🌍 Collaborate with global experts & open-source communities (FD.io, Linux Foundation) . 📈 Fast-track career growth (Principal Engineer/Architect path). How to Apply? If you are a VPP/DPDK expert passionate about high-speed networking , we want to hear from you! Skills: vpp (vector packet processing),public cloud (aws, azure, gcp),dpdk (data plane development kit),networking,profiling tools (vtune, dpdk telemetry),debugging tools (gdb, wireshark),optimization,kubernetes networking,kubernetes,traffic generators (trex, iperf, moongen),vpp,linux,l2/l3/l4 protocols,c/c++,linux networking,azure,cloud

About PhonePe Limited: Headquartered in India, its flagship product, the PhonePe digital payments app, was launched in Aug 2016. As of April 2025, PhonePe has over 60 Crore (600 Million) registered users and a digital payments acceptance network spread across over 4 Crore (40+ million) merchants. PhonePe also processes over 33 Crore (330+ Million) transactions daily with an Annualized Total Payment Value (TPV) of over INR 150 lakh crore. PhonePe’s portfolio of businesses includes the distribution of financial products (Insurance, Lending, and Wealth) as well as new consumer tech businesses (Pincode - hyperlocal e-commerce and Indus AppStore Localized App Store for the Android ecosystem) in India, which are aligned with the company’s vision to offer every Indian an equal opportunity to accelerate their progress by unlocking the flow of money and access to services. Culture: At PhonePe, we go the extra mile to make sure you can bring your best self to work, Everyday!. And that starts with creating the right environment for you. We empower people and trust them to do the right thing. Here, you own your work from start to finish, right from day one. PhonePe-rs solve complex problems and execute quickly; often building frameworks from scratch. If you’re excited by the idea of building platforms that touch millions, ideating with some of the best minds in the country and executing on your dreams with purpose and speed, join us! SRE Experience: 4 to 7years Location: Pune Are you passionate about maintaining the reliability and performance of one of worlds largest fintech infrastructure? We are seeking a skilled SRE - System Engineer to join our dynamic team. The ideal candidate will have a solid foundation in Linux/Unix administration and networking, along with a keen understanding of open source technologies, tools, and cloud services. Join us to ensure our services remain always-up and always-available. Key Requirement: Proficiency in Linux/Unix administration, coupled with extensive experience in the field. Computer networking proficiency and working knowledge. Utilize a wide variety of open source technologies and tools, with a strong emphasis on cloud services. Implement best practices and IT operations to maintain an always-up, always-available service. Participate actively in the on-call rotation schedule. Communicate effectively in English. Display a strong background in Linux networking, including the use of IP, iptables, and IPsec. Work with MySQL databases effectively. Working experience in Mariadb,Percona will be a plus. Understand and apply coding and scripting skills, with a preference for Perl, python or Golang. Experience with automation and configuration management, using tools like SaltStack. Hands-on experience with private cloud environments. Desirable Skills: Experience with implementing cloud services on Linux using KVM/QEMU. Familiarity with container orchestration technology. Knowledge of NoSQL databases, especially Aerospike. Proficiency in Perl and Golang. Understanding of Galera cluster operations. Experience with data center related activities. If you are an enthusiastic team player with a robust technical background, eager to tackle challenges and contribute to the success of our operations, we would love to hear from you! PhonePe Full Time Employee Benefits (Not applicable for Intern or Contract Roles) Insurance Benefits - Medical Insurance, Critical Illness Insurance, Accidental Insurance, Life Insurance Wellness Program - Employee Assistance Program, Onsite Medical Center, Emergency Support System Parental Support - Maternity Benefit, Paternity Benefit Program, Adoption Assistance Program, Day-care Support Program Mobility Benefits - Relocation benefits, Transfer Support Policy, Travel Policy Retirement Benefits - Employee PF Contribution, Flexible PF Contribution, Gratuity, NPS, Leave Encashment Other Benefits - Higher Education Assistance, Car Lease, Salary Advance Policy Our inclusive culture promotes individual expression, creativity, innovation, and achievement and in turn helps us better understand and serve our customers. We see ourselves as a place for intellectual curiosity, ideas and debates, where diverse perspectives lead to deeper understanding and better quality results. PhonePe is an equal opportunity employer and is committed to treating all its employees and job applicants equally; regardless of gender, sexual preference, religion, race, color or disability. If you have a disability or special need that requires assistance or reasonable accommodation, during the application and hiring process, including support for the interview or onboarding process, please fill out this form. Read more about PhonePe on our blog . Life at PhonePe PhonePe in the news

You should have knowledge of Managing Networks, Server Installation and Maintenance, Hosting websites on servers located at various data centers, and Building Firewalls and Security Systems for the internal network. Skills required include the ability to manage both WINDOWS and LAMP environments, experience in Linux server administration, apache, samba, FTP, DNS, CPanel, Plesk, IP-Tables, expertise in managing network equipment like switches and routers, and knowledge of PHP will be an added advantage. Key responsibilities include managing and setting up all kinds of Server Editions in 2003, 2008 and above, deploying & managing Active Directory (AD), DNS, DHCP, WINS, WDS, backup & restore AD, DHCP, WINS, ticketing tool management & tracking tickets with SLA priority basis, deploying & managing server monitoring tools like Nagios, Cacti, OpsView, patch management WSUS, SCCM, deploying & managing antivirus server servers & client with updates, concepts of RAID volumes & levels, remote control management & tools, software distribution, operating system deployment, network access protection, and hardware and software inventory. Other duties include backups concepts, troubleshooting with high-level commands, deploying & managing mail server Exchange (OWA) or Lotus Notes, file server, print server, application server, installing, managing & maintaining project-related applications, installing & managing IIS, FTP, VPN configurations, Linux server administrator for all kinds of Linux Server Editions, booting procedure of Linux server, user administration, managing, maintaining & troubleshooting LVM FS creation/extend/FS issues & recover, managing, maintaining software install/remove/ticketing tool, managing/configuring files/folder permissions, basic services configuration/troubleshooting e.g. NFS, FTP, SAMBA, DNS, DHCP, deploying & managing patch management and rollback, and providing technical support to international web hosting clients. If you are interested in applying for this position, kindly send your updated resume to jobs@elivepages.com.,

About PhonePe Limited: Headquartered in India, its flagship product, the PhonePe digital payments app, was launched in Aug 2016. As of April 2025, PhonePe has over 60 Crore (600 Million) registered users and a digital payments acceptance network spread across over 4 Crore (40+ million) merchants. PhonePe also processes over 33 Crore (330+ Million) transactions daily with an Annualized Total Payment Value (TPV) of over INR 150 lakh crore. PhonePe’s portfolio of businesses includes the distribution of financial products (Insurance, Lending, and Wealth) as well as new consumer tech businesses (Pincode - hyperlocal e-commerce and Indus AppStore Localized App Store for the Android ecosystem) in India, which are aligned with the company’s vision to offer every Indian an equal opportunity to accelerate their progress by unlocking the flow of money and access to services. Culture: At PhonePe, we go the extra mile to make sure you can bring your best self to work, Everyday!. And that starts with creating the right environment for you. We empower people and trust them to do the right thing. Here, you own your work from start to finish, right from day one. PhonePe-rs solve complex problems and execute quickly; often building frameworks from scratch. If you’re excited by the idea of building platforms that touch millions, ideating with some of the best minds in the country and executing on your dreams with purpose and speed, join us! About The Role Are you passionate about maintaining the reliability and performance of one of worlds largest fintech infrastructure? We are seeking a skilled SRE - System Engineer to join our dynamic team. The ideal candidate will have a solid foundation in Linux/Unix administration and networking, along with a keen understanding of open source technologies, tools, and cloud services. Join us to ensure our services remain always-up and always-available. Experience Bucket: 7-10 years experience Key Requirement: Proficiency in Linux/Unix administration, coupled with extensive experience in the field. Computer networking proficiency and working knowledge. Utilize a wide variety of open source technologies and tools, with a strong emphasis on cloud services. Implement best practices and IT operations to maintain an always-up, always-available service. Participate actively in the on-call rotation schedule. Communicate effectively in English. Display a strong background in Linux networking, including the use of IP, iptables, and IPsec. Work with MySQL databases effectively. Working experience in Mariadb,Percona will be a plus. Understand and apply coding and scripting skills, with a preference for Perl, python or Golang. Experience with automation and configuration management, using tools like SaltStack. Hands-on experience with private cloud environments. Desirable Skills: Experience with implementing cloud services on Linux using KVM/QEMU. Familiarity with container orchestration technology. Knowledge of NoSQL databases, especially Aerospike. Proficiency in Perl and Golang. Understanding of Galera cluster operations. Experience with data center related activities. If you are an enthusiastic team player with a robust technical background, eager to tackle challenges and contribute to the success of our operations, we would love to hear from you! PhonePe Full Time Employee Benefits (Not applicable for Intern or Contract Roles) Insurance Benefits - Medical Insurance, Critical Illness Insurance, Accidental Insurance, Life Insurance Wellness Program - Employee Assistance Program, Onsite Medical Center, Emergency Support System Parental Support - Maternity Benefit, Paternity Benefit Program, Adoption Assistance Program, Day-care Support Program Mobility Benefits - Relocation benefits, Transfer Support Policy, Travel Policy Retirement Benefits - Employee PF Contribution, Flexible PF Contribution, Gratuity, NPS, Leave Encashment Other Benefits - Higher Education Assistance, Car Lease, Salary Advance Policy Our inclusive culture promotes individual expression, creativity, innovation, and achievement and in turn helps us better understand and serve our customers. We see ourselves as a place for intellectual curiosity, ideas and debates, where diverse perspectives lead to deeper understanding and better quality results. PhonePe is an equal opportunity employer and is committed to treating all its employees and job applicants equally; regardless of gender, sexual preference, religion, race, color or disability. If you have a disability or special need that requires assistance or reasonable accommodation, during the application and hiring process, including support for the interview or onboarding process, please fill out this form. Read more about PhonePe on our blog . Life at PhonePe PhonePe in the news

About The Company: Dolat is a dynamic team of traders, puzzle solvers, and coding enthusiasts focused on tackling complex challenges in the financial world. We specialize in trading in volatile markets and developing cutting-edge technologies and strategies. We're seeking a skilled Linux Support Engineer to manage over 400 servers and support 100+ users. Our engineers ensure a high-performance, low-latency environment while maintaining simplicity and control. If you're passionate about technology, trading, and problem-solving, this is the place to engineer your skills into a rewarding career. Qualifications: B.E/ B.Tech Experience: 0-3 years. Job location – Andheri West, Mumbai. Responsibilities: Troubleshoot network issues, kernel panics, system hangs, and performance bottlenecks. Fine-tune processes for minimal jitter in a low-latency environment. Support low-latency servers, lines, and networks, participating in on-call rotations. Install, configure, and deploy fully-distributed Red Hat Linux systems. Deploy, configure, and monitor complex trading applications. Provide hands-on support to trading, risk, and compliance teams (Linux & Windows platforms). Automate processes and analyze performance metrics to improve system efficiency. Collaborate with development teams to maintain a stable, high-performance trading environment. Drive continuous improvement, system reliability, and simplicity. Resolve issues in a fast-paced, results-driven IT team. Provide level one and two support for tools systems testing and production release. Skills Required: Expertise in Linux kernel tuning, configuration management (cfengine). Experience with hardware testing/integration and IT security. Proficient in maintaining Cisco, Windows, and PC hardware. Good knowledge in Perl, Python, Powershell & Bash. Hands-on knowledge of SSH, iptables, NFS, DNS, DHCP, and LDAP. Experience with Open Source tools (Nagios, SmokePing, MRTG) for enterprise-level systems. Knowledge of maintaining Cisco ports/VLANs/dot1.x Solid understanding of OS and network architectures. REDHAT Certification and SQL/database knowledge. Ability to manage multiple tasks in a fast-paced environment. Excellent communication skills and fluency in English. Proven technical problem-solving capabilities. Strong documentation and knowledge management skills. Software development skills are a bonus. Preferred SQL and database administration skills.

Linux administration (RHEL, Ubuntu, Oracle Linux, SUSE): install, configure, patch, harden, and tune systems. Shell scripting (Bash, sh, ksh): automate tasks and build health check/monitoring scripts. Networking fundamentals: TCP/IP, DNS, DHCP, routing, VLANs, and troubleshooting using tools like netstat, traceroute, tcpdump. Storage management: LVM, RAID, NFS, SAN, iSCSI, and disk management. User and permission management: users, groups, sudoers, PAM, and file permissions. System monitoring and troubleshooting: using top, htop, iostat, vmstat, journalctl, and log analysis. Security best practices: SELinux, firewalld/iptables, SSH hardening, vulnerability remediation. Virtualization and containers: familiarity with KVM, VMware, Docker basics. Strong analytical troubleshooting skills. Clear documentation skills for processes and configurations. Good time management to handle patching, KTLO, and project work. Ability to collaborate across multiple technical teams

SUMMARY Sr. Systems Administrator (SSA) is responsible for planning, designing and managing redundant and scalable IT infrastructure. This position requires having an expertise of capacity planning for IT systems and resource / team. This position requires strong leadership and mentoring skill to ensure that the team is skilled and motivated to support the IT systems across the time zone. SSA should ensure that compliance and governance practices are followed / enforced / adhered at the organization level as well for each assigned project. This requires experience of 10+ years including 2+ years of experience on Azure and 2+ years of supervisory / leadership experience of managing a team size of 25+ people. The candidate should have a fundamental as well as hand-on knowledge of outlined skills as mentioned in the skill summary table below. KEY RESPONSIBILITIES Design, build and implement infrastructures for enterprise application Creating high level architectural design of products systems. Set up monitoring, configuration management, administration operation practices Planning large migrations and executing it Developing monitoring systems management practices to maximize uptime Develop/ Adopt new efficient strategies to minimize manual/ repetitive work, operational costs, deployment times, response times etc. Troubleshooting escalated / complex systems / network issues Good understanding of statistic Capacity and availability planning Training and managing teams Plan team to-do's/ goals, product upgrades/ releases. Evaluate software/ hardware products (free/ commercial) as per needs. Demonstrate POC for new Server technologies for improvement in Server and Security Prepare present proposals with respect to systems/ software infrastructure Performing DR Drill and ensure Service Continuity Audit IT infrastructure and publish monthly health report Maintain Data Integrity and access control Research build specifications for new products tools Acting as liaisons between junior systems administrators, application administrators and software developers High level log analysis, performance reports, trend analysis. Quick in decision making and execution. Assist operations teams in daily operations when required Assist developers in architectural and design problems Generic roles and responsibilites Log all issues / customer requests and resolutions Perform root cause analysis for escalated issues and provide resolution Provide after-hours support for Infrastructure related emergencies as well as maintenance Provides on-call high priority 24/7 technical support as necessary Continuously monitor the SLA and ensure the incidents are handled within timeline Ensure CMDB and all IT digital assets are real-time updated Contribute on building digital assets (knowledge base, technical documentation, manuals and IT policies) Adhere to compliance and governance standards and report any non-compliances to the manager Participate & contribute in IT team meetings Provide methodological assistance to client / peers Follow timely delegation / escalation procedure Follow ITIL standard practices for incident, change and problem management Outstanding analytical and technical problem-solving skills Stay updated with technology updates Develop expertise to train staff on new technologies Foster professional relationship with all colleagues by listening, understanding and responding to their needs Excellent Interpersonal and communication skills (verbal and written) Excellent organizational, time-management and prioritization skills Promote positive customer service attitude among peers SKILLS AND EXPERIENCE 10+ years of experience in designing, deploying, supporting and maintaining Windows 2016 & 2019, Linux, Networking, Storage and Database at an enterprise level 2+ years of supervisory experience of managing team size of 25+ people 2+ years of Experience on Microsoft Azure / AWS Infrastructure services Scripting for administration and automation Managing full server operating System & Application Lifecycle, Provisioning, Automation and Security Solid understanding and operational experience with Active Directory, DNS, Web Server, File Server, Microsoft Hyper-V, VMWare, Backup solutions Ability to setup and maintain High Availability Clusters and Load Balanced environment. Firewalls (Iptables, BSD packet filter, other commercial etc). Understanding of Root kits, IDS, Firewall concepts. In-depth Knowledge of MRTG, Nagios, selinux. Knowledge of MySQL, databases in-depth fine-tuning procedures advanced troubleshooting. Deep understanding of file systems and recovery techniques. Should apply Networking principles: TCP/IP, Routers, Firewalls, Switches, Load Balancers, VPNs Monitor system logs (logs, IDS/IPS/ Content Filter, Backup Jobs, etc.) Basic knowledge of mail server technologies (Exchange Server, Office365, Gmail) Job Type: Full-time Pay: ₹70,000.00 - ₹90,000.00 per month Benefits: Food provided Health insurance Paid sick time Provident Fund Schedule: Monday to Friday Night shift Rotational shift Supplemental Pay: Shift allowance Work Location: In person Speak with the employer +91 9099910248

You should have a minimum of 6 months to 5 years of experience in the field. Your qualifications must include a good understanding of VoIP and SIP, a strong grasp of Linux OS (CentOS/Redhat), and practical experience with at least one open-source VoIP solution such as Freeswitch, Asterisk, OpenSIPS, or Kamailio. Proficiency in troubleshooting using tools like Wireshark, tcpdump, sipp, fail2ban, and IPtables is essential. It is important to have a solid grasp of networking concepts and good troubleshooting skills. In addition, knowledge of MySQL Database and experience with Database Replication & Heartbeat configuration would be beneficial. Your communication skills should be excellent, and you must possess a problem-solving attitude. Previous experience in client support is preferred, and you should be willing to work in shifts.,

Gruve is an innovative software services startup dedicated to transforming enterprises into AI powerhouses. Specializing in cybersecurity, customer experience, cloud infrastructure, and advanced technologies such as Large Language Models (LLMs), our mission is to assist customers in utilizing their data for making intelligent decisions. As a well-funded early-stage startup, Gruve offers a dynamic environment with strong customer and partner networks. We are currently looking for an experienced Staff Engineer with expertise in SONiC (Software for Open Networking in the Cloud), Networking, Security, and Linux. The ideal candidate should have a deep understanding of data plane and control plane networking, security mechanisms, and open-source networking stacks. In this role, you will be instrumental in designing, developing, and optimizing high-performance networking solutions based on SONiC, working on switch OS internals, and ensuring security at all levels. Key Responsibilities: - Design, develop, and optimize SONiC-based networking solutions for data center and cloud environments. - Contribute to SONiC's Control Plane, Data Plane, SAI (Switch Abstraction Interface), and integration with ASICs. - Develop and enhance network security mechanisms, including ACLs, firewall rules, and secure communication protocols. - Work with Linux kernel networking stack, DPDK, eBPF, and other high-performance packet processing frameworks. - Integrate and optimize FRR (Free Range Routing), BGP, OSPF, and other routing protocols within SONiC. - Collaborate with ASIC vendors to integrate new chipsets with SONiC through SAI API development. - Drive software development using C, C++, Python, and Go for various networking and security features. - Optimize Netfilter, iptables, nftables, and XDP/eBPF for security and performance enhancements. - Design and implement Zero Trust Security models for networking and cloud infrastructure. - Work on containerized networking (CNI), Kubernetes networking, and SDN solutions. - Debug and troubleshoot networking and security issues using tcpdump, Wireshark, gdb, strace, and perf tools. - Contribute to open-source networking projects and engage with the SONiC community. Basic Qualifications: - Bachelor's or Master's degree in computer science, electronics engineering, or a related field. - 8-12 years of experience in networking software development, security, and Linux systems programming. - Strong expertise in SONiC architecture, SAI, and open networking platforms. - Proficiency in L2/L3 networking protocols (BGP, OSPF, MPLS, VXLAN, EVPN, etc.). - Strong knowledge of network security concepts, including firewalling, VPNs, and DDoS mitigation. - Experience with Linux networking internals, Netfilter, iptables, nftables, XDP, and eBPF. - Proficiency in C, C++, Python, and Go for networking software development. - Strong debugging skills using tcpdump, Wireshark, gdb, strace, perf, and ASAN. - Experience working with network ASICs, Broadcom, Mellanox, Marvell, or Intel-based chipsets. - Good understanding of container networking, Kubernetes CNI, and SDN concepts. - Hands-on experience with CI/CD, Git, Jenkins, and automated testing frameworks. Preferred Qualifications: - Experience in DPDK, P4 programming, and FPGA-based networking solutions. - Contributions to open-source networking projects (SONiC, FRR, Linux kernel, etc.). - Knowledge of TLS, IPSec, MACsec, and secure boot mechanisms. - Experience working with public cloud networking (AWS, Azure, GCP). At Gruve, we value innovation, collaboration, and continuous learning. We strive to create a diverse and inclusive workplace where everyone can excel and contribute their best work. If you are passionate about technology and eager to make a difference, we encourage you to apply. Gruve is an equal opportunity employer, welcoming applicants from all backgrounds. We appreciate all applications, but only candidates selected for an interview will be contacted.,

• Linux administration (RHEL, Ubuntu, Oracle Linux, SUSE): install, configure, patch, harden, and tune systems. • Shell scripting (Bash, sh, ksh): automate tasks and build health check/monitoring scripts. • Networking fundamentals: TCP/IP, DNS, DHCP, routing, VLANs, and troubleshooting using tools like netstat, traceroute, tcpdump. • Storage management: LVM, RAID, NFS, SAN, iSCSI, and disk management. • User and permission management: users, groups, sudoers, PAM, and file permissions. • System monitoring and troubleshooting: using top, htop, iostat, vmstat, journalctl, and log analysis. • Security best practices: SELinux, firewalld/iptables, SSH hardening, vulnerability remediation. • Virtualization and containers: familiarity with KVM, VMware, Docker basics. • Strong analytical troubleshooting skills. • Clear documentation skills for processes and configurations. • Good time management to handle patching, KTLO, and project work. • Ability to collaborate across multiple technical teams Roles and Responsibilities • Linux administration (RHEL, Ubuntu, Oracle Linux, SUSE): install, configure, patch, harden, and tune systems. • Shell scripting (Bash, sh, ksh): automate tasks and build health check/monitoring scripts. • Networking fundamentals: TCP/IP, DNS, DHCP, routing, VLANs, and troubleshooting using tools like netstat, traceroute, tcpdump. • Storage management: LVM, RAID, NFS, SAN, iSCSI, and disk management. • User and permission management: users, groups, sudoers, PAM, and file permissions. • System monitoring and troubleshooting: using top, htop, iostat, vmstat, journalctl, and log analysis. • Security best practices: SELinux, firewalld/iptables, SSH hardening, vulnerability remediation. • Virtualization and containers: familiarity with KVM, VMware, Docker basics. • Strong analytical troubleshooting skills. • Clear documentation skills for processes and configurations. • Good time management to handle patching, KTLO, and project work. • Ability to collaborate across multiple technical teams

Hello, Greetings from ZettaMine!! Hiring for Linux Server Administration Exp: 4 to 8 Years Location: Hyderabad,Bangalore Immediate joiners Only Job Description: Overall 4 – 8 years’ Experience in Server Management Administration (Linux). Experience in Server (physical/VM) installation, maintenance & decommissioning. Profound Linux OS operations experience. Knowledge in hypervisor operations (XEN and VMware). To have good knowledge in LVM, DNS, LDAP and IPTables. To have good troubleshooting skills in server down situation. Knowledge in physical server management. Additionally, associate level knowledge in at least one public cloud landscape (AWS, Azure, GCP). Basic knowledge in automation tools and (e.g. chef) and scripting (e.g. bash, Perl) Additionally, knowledge/experience in using GitHub and Jira would be beneficial. Any experience in monitoring with Prometheus on docker setup and/or ELK stack would be beneficial (not mandatory) Any knowledge for central infrastructure services is recommended and highly beneficial (Security Groups/RPM/Rsync/Mail/Active Directory/Chef automation/Nagios/repository management/Monitoring) Able to provide knowledge transfer from certain technology areas towards 2nd level technical support. Roles & Responsibilities: Deliver 3rd level technical support in compliance with customer SLAs Daily Compute operations (Events/Incidents/SR/CR/RCA ..) following ITIL processes Server installation, maintenance, monitoring, decommission and special configurations beyond automated tasks Storage Operations based on netapp-nfs Package/repository management and OS image maintenance Interested candidates can reach on md.afreen@zettamine.com Thanks & Regards Afreen

Dear Connects, We are hiring for Linux Administrator Role. Location: - Mumbai Interested Candidate can share cv at manisha.shahiri@aqmtechnologies.com Key Responsibilities: System Administration: Install, configure, and maintain Linux-based servers (CentOS, Ubuntu, RedHat, etc.). Monitoring and Performance Tuning: Monitor server performance and resolve issues related to CPU, memory, disk usage, and system resources. Security Management: Implement and enforce security policies, patching, and upgrades to ensure the systems are secure and up to date. Backup and Recovery: Manage system backups and disaster recovery operations, ensuring data integrity and availability. Automation: Automate administrative tasks using scripting languages like Bash, Python, or Ansible. Troubleshooting: Diagnose and resolve Linux-related system and network issues, ensuring minimal downtime. Collaboration: Work closely with development and DevOps teams to ensure efficient system integration and operation. Documentation: Maintain system documentation, including configurations, procedures, and incident resolutions. Required Skills & Qualifications: Operating Systems: Strong experience with Linux distributions (CentOS, Ubuntu, RHEL). Scripting: Proficiency in Bash, Python, or other scripting languages to automate tasks. Networking: Knowledge of TCP/IP, DNS, DHCP, and VPNs. Security: Understanding of firewalls, SELinux, iptables, and other security tools. Storage Management: Experience with file systems, NFS, RAID, and LVM. Web Servers: Familiarity with Apache, Nginx, or other web servers. Version Control: Experience with Git or similar version control systems. Monitoring Tools: Hands-on experience with monitoring tools like Nagios, Zabbix, or Prometheus. Cloud Computing: Experience with cloud platforms like AWS, GCP, or Azure is a plus. Virtualization: Familiarity with virtualization tools such as VMware, KVM, or Docker is an advantage. Should have passed B.E./ B.Tech/ M.Tech in any stream OR M.Sc.(IT)/ MCA or equivalent from any recognized College/ University duly approved by AICTE.

Lead the architecture, design, and development of firewall features (e.g., packet filtering, DPI, NAT, ACLs, VPN, etc.) in embedded systems. Work closely with product management and other stakeholders to define system requirements and translate them into scalable technical solutions. Guide the team in low-level programming (C/C++), Linux kernel, and real-time OS for network/firewall appliances. Ensure the performance, reliability, and security of firewall modules. Drive code reviews, design reviews, and maintain best practices in secure coding and unit testing. Own the integration with third-party open-source firewall tools (iptables, nftables, netfilter, Suricata, etc.). Provide technical leadership and mentorship to a team of software engineers. Coordinate with QA, DevOps, and security teams for CI/CD, test automation, and vulnerability assessment. Troubleshoot complex issues from the field and contribute to customer escalations when needed. Problem-solving skills, driving resolution/tracking technical issues, risks, and dependencies Great interpersonal and communication skills Good time-management skills Technical Skills 812 years of experience in embedded software development with at least 3 years in a lead role. Strong programming skills in C/C++, scripting (Python/Shell), and experience with Linux OS internals. Expertise in firewall architectures, networking stack (L2-L7), IPSec/VPN, NAT, ACL, and packet classification. Hands-on experience with tools like iptables, netfilter, Wireshark, tcpdump. Experience in bringing up hardware u-boot. Good understanding of TCP/IP, routing protocols (OSPF), DHCP, VLAN, and network security. Familiarity with secure boot, OTA updates, and firmware lifecycle. Experience with Agile development, version control (Git), and Jenkins pipelines. Excellent debugging, problem-solving, and communication skills. Nice-to-have skills Qualifications Qualifications 7-9 years of work experience in relevant field B.Tech/B.E/M.Tech or MCA degree from a reputed university. Computer science background is preferred

JD for Linux Administration- We are seeking a proactive and detail-oriented Linux System Administrator to join our IT Operations team. In this role, you will design, deploy, secure, and maintain our Linux-based infrastructure, ensuring high availability and optimal performance of critical services. Key Responsibilities:- System Deployment & Configuration Install, configure, and harden Linux distributions (RHEL/CentOS, Ubuntu, Debian). Automate server provisioning using configuration management tools (Ansible, Puppet, Chef). Authentication & Directory Services Deploy, and manage RADIUS servers (e.g., FreeRADIUS) for VPN/Wi-Fi authentication. Implement and maintain LDAP directory services (OpenLDAP, 389 DS) for centralized user management. Database Administration Install, configure, and tune databases (MySQL, MariaDB, PostgreSQL). Develop backup, restore, and fail-over procedures to ensure data integrity. Networking & Security Configure firewalls (iptables, firewalld), VPNs (OpenVPN, IPsec), and network services (DNS, DHCP). Enforce security best practices: patch management, SELinux policies, intrusion detection (fail2ban, auditd). Monitoring & Troubleshooting Implement and maintain monitoring solutions (Nagios, Zabbix, Prometheus/Grafana). Respond to and resolve incidents; perform root-cause analysis and document findings. Scripting & Automation Develop shell and Python scripts to automate routine maintenance and reporting tasks. Documentation & Collaboration Maintain up-to-date runbooks, system diagrams, and SOPs. Collaborate with developers and network engineers on deployments, capacity planning, and security audits. About US -: Webmobril is One of the top-notch IT companies based in Delhi, NCR; India and also established in the US. Offering exclusive and affordable Web, Mobile, and Game app development, Cyber Security Assessment, Digital Marketing services globally. Recently we started Staffing Services and Travel & Tourism services . We are a team of experienced, dedicated enthusiastic, innovative, and creative professionals to serve a range of business goals with our advanced tools and technologies. For more detail you can go through our company website: https://www.webmobril.com/ Kindly confirm the availability. In case any queries and concerns feel free to write back to us. Regards, Mansi Hada HR Executive IBEM Solutions LLP M: +91- 9352449814 Address- G-18, Noida sector 63, 201301 www.b2bstreets.com | www.ibem.co.in |