9 Linux Security Jobs

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you'd like. You'll be supported and inspired by a collaborative community of colleagues around the world, and you'll be able to reimagine what's possible. Join us and help the world's leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Your role will involve being proficient in managing, maintaining, and troubleshooting Linux servers and systems. You should have a strong understanding of Linux security best practices and security tools. Experience with scripting languages such as Bash, Python, or Perl automation is required. Additionally, experience with automation tools like Ansible, Puppet, or Chef is desired. Knowledge of networking principles and protocols is also important, as well as experience with virtualization technologies such as VMware or KVM and cloud platforms like AWS, Azure, or Google Cloud. Ideally, you should have 4-12 years of experience as a Linux Administrator with Ansible. Experience with virtualization technologies and cloud platforms is a plus. Strong analytical and problem-solving skills are essential, along with excellent communication and collaboration skills. Capgemini offers a wide range of Linux Administrator roles in India with diverse infrastructure exposure, cutting-edge technologies, global projects & clients, and a strong learning culture. Capgemini is a global business and technology transformation partner, helping organizations accelerate their transition to a digital and sustainable world, while creating tangible impact for enterprises and society. With a team of 340,000 members in more than 50 countries, Capgemini has a strong heritage of over 55 years. Trusted by its clients to unlock the value of technology, Capgemini delivers end-to-end services and solutions leveraging strengths in strategy, design, engineering, AI, cloud, and data, combined with deep industry expertise and a partner ecosystem.,

As a Platform and Network Security Expert at ANDREW in Bangalore, Karnataka, you will play a crucial role in enhancing security measures for DAS and RAN products. Your responsibilities will include designing and defining security policies, architecting secure environments, and ensuring compliance with telecom security standards and customer requirements. You will collaborate with internal and external stakeholders, engage in security testing, and develop tools to automate security monitoring and vulnerability management. To be successful in this role, you should have a Bachelor's or Master's degree in Telecommunications, Computer Science, Cybersecurity/Information security, along with 10+ years of experience in the Telecommunications and Cellular industry. Expertise in mobile network security principles, knowledge of O-RAN architecture, cloud security, and security frameworks is essential. Proficiency in security testing tools, Linux security, and scripting is also required. Strong communication and collaboration skills are key for interfacing with centralized security teams and development stakeholders. Certifications such as CISSP, CEH, GICSP, or vendor-specific security certifications are a plus. Experience with AI/ML-based threat detection, 3GPP standards, and telco cloud environments will excite us. Join ANDREW, part of the Amphenol family, and be a part of our legacy of over 85 years in wireless innovation. We offer exciting career opportunities, a supportive work environment, and the chance to make a positive impact within a global organization. Visit our website at https://www.andrew.com to learn more about us.,

Job Title: Linux Security Developer Experience : 5-12 years Required Skills Strong hands-on experience with Linux kernel development and embedded security mechanisms. Solid understanding of Linux hardening techniques : namespaces, cgroups, LSMs, KASLR, ASLR, etc. Experience with SELinux , AppArmor , IMA/EVM , dm-verity , cryptsetup , or keyrings . Proficiency in C, Bash, and Python ; knowledge of assembly and GCC/Clang toolchains a plus. Experience with secure boot flows (UEFI/Secure Boot, FIT image signing, etc.) and TPM/OP-TEE . Familiarity with CVE triaging , kernel patching, and upstream contribution processes. Preferred Skills Knowledge of secure software lifecycle and threat modeling (e.g., STRIDE, DREAD). Experience with Yocto or Buildroot build systems for custom Linux distributions. Exposure to virtualization/container tech: Xen, KVM, Docker, LXC, or Kata Containers. Experience working on automotive, medical, or industrial-grade secure systems is a plus. Familiarity with compliance standards (CIS Benchmark, FIPS, GDPR, ISO 21434, etc.). Education Bachelors or Masters degree in Computer Science, Electronics, Cybersecurity, or related field.

As a Security leader with a background in AWS and cloud Security, you play a crucial role in defining and enforcing the security policies and procedures of the organization. With excellent written and verbal communication skills, exceptional organizational abilities, and expert-level proficiency in IT and Cloud Security, you will be responsible for architecting and implementing IT Security policies while reporting to the Director of Information Technology. In this full-time role, your essential duties and responsibilities include providing leadership and technology vision to the IT Security team, performing internal and external security audits, documenting, implementing, and monitoring adherence to IT security standards, as well as assessing and improving security metrics. You will work on enhancing security tools and operations, monitor and manage IDS, vulnerability scanning, and assessments, and serve as the Data Privacy Officer (DPO) for the company. Creating awareness within the company regarding Security, Privacy, and compliance requirements, ensuring security and privacy training for staff involved in data processing, conducting security and privacy audits, and serving as the point of contact between the company and clients for privacy controls are key aspects of your role. Additionally, you will be responsible for log aggregation and analysis, managing Anti-Virus software, addressing security and data breach-related incidents, and ensuring customer satisfaction while being accountable for individual product/project success and quality. To qualify for this position, you must hold certifications such as CISSP, Security+, or equivalent, along with having 10+ years of Cyber Security experience, 5+ years of IT management experience, 5+ years of AWS experience, and 3+ years of experience with Identity & Access Management tools. Your extensive experience with Linux & Windows Security administration, managing Cloud and Container Security, Network and Application penetration testing, vulnerability scanners, IDS, IPS deployment and monitoring, SIEM tools, security automation, incident response & management, vulnerability management, and patch management will be essential. Moreover, your role will involve ensuring organization efficiencies through continual improvement programs, representing the organization in inspections and audits, driving action plans to closure, conducting deep dive RCAs and ensuring CAPAs are closed, and maintaining a metrics-driven approach. Additional qualifications such as experience with monitoring tools like Datadog, Change Management, Configuration Management, Infrastructure as Code tools, hardening Operating Systems and Applications, endpoint security management, working in GxP environments, and familiarity with various practices will be beneficial. With no travel expectations, this role requires a dedicated and experienced professional who can effectively lead security operations and teams, prioritize security and privacy, and drive continuous improvement initiatives to enhance organizational security posture.,

As a Security Engineer at Rapid7, you will play a crucial role in building, integrating, and automating security controls across a variety of environments. Your primary responsibility will be to enhance global technology security by designing and implementing robust security solutions. Joining our IT team, you will collaborate with a group of dedicated professionals who are committed to advancing technology security across different business verticals. Your role will involve driving the design and integration of security controls, managing IT infrastructure vulnerabilities, and providing security consulting to various business units. Key responsibilities include building, integrating, and automating security controls from cloud to endpoint, serving as a subject matter expert in enhancing IT security for end-user devices, infrastructure, applications, and identity/access management. You will also be involved in automating vulnerability management and incident detection/response, leading and collaborating on security projects, and curating metrics to demonstrate security control effectiveness. To excel in this role, you are expected to bring at least 5 years of experience in information security, particularly in areas such as vulnerability management, incident detection/response, digital forensics, or malware analysis. Additionally, proficiency in software development with Python or Go, strong knowledge of Windows, macOS, & Linux security hardening/monitoring, expertise in secure network, systems, and application design/architecture, and experience in maintaining AWS cloud infrastructure will be valuable assets. Moreover, your ability to identify security event root causes from disparate systems, excellent communication skills with technical and non-technical audiences, a proactive mindset, and a strong curiosity for staying updated on emerging threats and industry trends are essential qualities for success in this role. At Rapid7, we value diverse perspectives and experiences, and if you are passionate about cybersecurity and eager to contribute to creating a secure digital world, we encourage you to apply and be a part of our dynamic team.,

Exp writing test cases, building test frameworks, AWS services ( Lambda, S3, EC2, CloudWatch, Datadog. Exp in software/systems testing concepts. Exp Automotive Security, IT Security, Linux security concepts. Testing embedded systems, IoT devices.

Writing test cases & building test frameworks. Exp in C/C++Python. AWS services -Lambda, S3, EC2, CloudWatch. Experience in Datadog. Strong in software and systems testing concepts. Experience on Automotive & IT Security and Linux security concepts.

Role : Linux Security Lead Key Responsibilities: Lead the architecture, design, and implementation of security features for Linux-based platforms. Define and enforce the system-wide security model covering boot process, kernel, user-space, and application-level protections. Develop and maintain Linux kernel security modules and secure access control policies. Drive implementation of Secure Boot, Measured Boot, and Trusted Boot mechanisms using UEFI, TPM, and cryptographic modules. Ensure proper hardening of Linux components including kernel configuration, filesystem permissions, device access, and syscall exposure. Integrate and validate data encryption, key management, and secure storage mechanisms (e.g., dm-crypt, LUKS, eCryptfs). Work closely with platform, firmware, kernel, and application teams to address security threats, CVEs, and design mitigations. Define and drive threat modeling, security code reviews, and risk assessments during product development. Respond to and investigate potential security incidents or vulnerabilities and deliver timely patches or mitigation strategies. Lead security audits, compliance verification (e.g., CIS, NIST, ISO 27001), and contribution to product certifications. Contribute to secure OS update strategies and rollback protections. Required Qualifications: Bachelors or Masters degree in Computer Science, Electrical Engineering, or a related field. 8+ years of experience in embedded Linux system development with a strong focus on security . Deep understanding of Linux security architecture, UEFI/BIOS, and TPM 2.0 integration. Hands-on experience with: Integrity Measurement Architecture (IMA/EVM) and LUKS/dm-crypt and fscrypt Audit subsystem, iptables/nftables, seccomp, and namespaces Strong experience with Trusted Execution Environments (TEE) and secure key storage (e.g., OP-TEE, TrustZone). Familiar with CVSS, CVE analysis, patch management, and vulnerability remediation lifecycles. Knowledge of secure update frameworks (e.g., OSTree, SWUpdate, RAUC, The Update Framework - TUF). Proficient in C, Python, shell scripting, and security testing tools (auditd, gdb, valgrind, clang static analyzer, etc.)

Application Security Perform security reviews, code audits, and threat modeling of web and mobile applications. Work with DevOps and development teams to integrate secure coding practices and tools (e.g., SAST, DAST, SCA). Conduct penetration testing and vulnerability assessments on internal and external applications. Remediate OWASP Top 10 and other emerging threats. Infrastructure & Server Security Harden Linux and Windows servers following CIS/NIST benchmarks. Implement endpoint security solutions (AV, EDR, MDM). Monitor, detect, and respond to system anomalies and unauthorized access. Manage patching and update cycles in coordination with system teams. Network Security Secure network architecture, firewall policies, VPNs, NAT, and VLAN segmentation. Analyze and mitigate threats like DDoS, MITM, spoofing, etc. Configure and manage intrusion detection/prevention systems (IDS/IPS). Perform routine audits and packet-level analysis for suspicious activity. Cloud Security Secure cloud infrastructure (Alibaba Cloud/AWS/Azure/GCP). Manage IAM, WAF, Security Groups, and cloud-native threat detection tools. Audit and improve security configurations in containers, CI/CD pipelines, and serverless deployments. Monitoring, Audit, and Compliance Work closely with compliance teams to meet standards like SAMA-CSF, ISO 27001, and PCI-DSS. Implement and tune SIEM/SOAR systems for proactive monitoring and incident response. Maintain audit trails, security reports, and logs for investigations and audits. Qualifications & Requirements Bachelors degree in computer science, Cybersecurity, or a related field. 4+ years of experience in cybersecurity roles with exposure to infrastructure and application security. Proficiency in tools like Burp Suite, Nessus, Wireshark, Nmap, Suricata, OSSEC/Wazuh, etc. Strong knowledge of TCP/IP, Linux security, cloud security, and secure coding principles. Experience with at least one cloud platform (Alibaba Cloud preferred). Familiarity with regulatory and compliance standards in the GCC region is a plus. Security certifications such as CEH, OSCP, CISSP, or CISM are a plus. Preferred Strong problem-solving and analytical skills. Ability to work under pressure in a fast-paced environment. Excellent communication skills to interface with technical and non-technical stakeholders. Self-motivated and able to work independently or as part of a team.