3 Jncie Jobs

Job Title: Senior Network Engineer (L3/L4) Location: Remote / Chennai / Gurugram Experience: 10+ Years Position Summary: We are seeking a highly experienced and hands-on Senior Network Engineer (L3/L4) who can own, lead, and drive all aspects of network engineering from architecture and design to implementation, operations, and support. This is a strategic, senior-level technical role requiring deep expertise across routing, switching, firewalls, network security, cloud and hybrid connectivity, and vendor-agnostic infrastructure management. The ideal candidate should be capable of handling the full network lifecycle independently and be a thought leader in designing resilient, secure, and high-performance networks for global enterprise environments. Key Responsibilities: Architecture & Design Lead the end-to-end design and architecture of enterprise-class networks (LAN, WAN, SD-WAN, cloud, data center). Design scalable and secure network topologies, integrating routing protocols (BGP, OSPF, EIGRP), VLANs, subnetting, ACLs, and QoS. Define network blueprints, migration plans, and future-state architectures for global and hybrid IT environments. Architect and implement high availability and disaster recovery solutions using redundancy, clustering, and failover strategies. Integrate on-prem, hybrid, and cloud environments (AWS, Azure) into cohesive network solutions. Implementation & Operations Deploy and configure network hardware from multiple vendors: Cisco, Aruba, HP, Juniper, Avaya, etc. Manage and optimize Layer 2/3 infrastructure including routers, switches, wireless, VPN, and WAN optimization tools. Configure and maintain firewalls and security appliances: Cisco ASA, Palo Alto, Fortinet, FMC, Juniper FTD, etc. Build and manage VPNs (IPSec, SSL, GRE), segmentation (micro/macro), and SD-WAN deployments. Monitor network health, performance, and capacity using advanced tools; create dashboards and alerts. Security & Compliance Drive network security initiatives, including design and implementation of intrusion prevention systems (IPS), NAC, and Zero Trust architecture. Ensure compliance with internal and external security standards through network hardening, audits, and regular reviews. Design and maintain secure remote access and multi-site connectivity strategies. Perform security assessments and vulnerability mitigation related to network layers. Troubleshooting & Support Act as the highest escalation point (Tier 3/4) for complex network issues, including packet capture, traffic analysis, and protocol debugging. Lead root cause analysis (RCA) efforts for critical incidents, post-mortems, and corrective/preventive actions. Work closely with vendors to resolve hardware/software bugs and proactively manage lifecycle support contracts. Documentation & Reporting Maintain detailed documentation of network infrastructure, including diagrams, IP schemas, configuration repositories, and SOPs. Generate performance and availability reports; present findings and recommendations to both technical and business stakeholders. Leadership & Collaboration Collaborate with enterprise architects, cybersecurity teams, DevOps, and application owners to align network infrastructure with business goals. Interface with customers and leadership on solution designs, RFPs, PoCs, and implementation roadmaps. Mentor junior and mid-level engineers; lead knowledge-sharing initiatives and develop playbooks for best practices. Required Skills & Qualifications: Minimum 10+ years of experience in enterprise networking with strong architecture and troubleshooting background. Proven expertise in multi-vendor environments: Cisco, HP, Aruba, Juniper, Avaya. Advanced knowledge of routing protocols (BGP, OSPF, EIGRP, etc.) and switching technologies (VLANs, STP, VTP, port-channeling). Strong experience with firewalls and network security appliances (Cisco ASA, Palo Alto, FMC, Juniper FTD, etc.). Deep understanding of high availability, load balancing, VPNs, cloud networking (AWS/Azure/GCP), and SD-WAN. Strong scripting/automation skills (Python, Ansible) are a plus. Network certifications such as CCNP/CCIE, JNCIP/JNCIE, PCNSE, AWS Networking Specialty are highly desirable. Experience with enterprise monitoring tools (SolarWinds, Nagios, Wireshark, PRTG, etc.). Excellent communication, documentation, and leadership skills. Location : - Chennai, Gurugram, Remote

What You Work: As a Principal Engineer you will be responsible for defining and driving the technical vision across projects, influencing architecture and engineering practices to align with organizational goals. You will provide expert guidance, mentor senior engineers, and lead the development of scalable, high-impact solutions. Test Planning and Strategy: Develop comprehensive test plans and strategies aligned with project objectives and requirements. Identify testing scope, objectives, and deliverables. Collaborate with network architects, engineers, and developers to define test cases and scenarios. Test Environment Setup: Create and maintain realistic test environments that accurately replicate production network conditions. Configure routing and switching devices, servers, and other network components. Ensure test environments adhere to security and compliance standards. Test Case Development: Develop and maintain a comprehensive suite of test cases covering various aspects of routing and switching functionality, performance, and security. Design test cases to validate network protocols, features, and configurations. Prioritize test cases based on risk and criticality. Test Execution: Execute test cases manually or using automation tools. Document test results, defects, and anomalies. Retest resolved defects to ensure they have been fixed correctly. Defect Management: Track and manage defects throughout the testing lifecycle. Work with development teams to resolve defects and ensure timely fixes. Prioritize defects based on severity and impact. Effective RCCA with End-to-End Automation. Performance Testing: Conduct performance testing to assess network capacity, throughput, latency, and responsiveness under various load conditions. Identify performance bottlenecks and recommend optimizations. Security Testing: Perform security testing to identify vulnerabilities and weaknesses in network infrastructure. Conduct vulnerability assessments and penetration testing. Ensure compliance with security standards and regulations. Automation: Develop and implement test automation frameworks to improve efficiency and reduce manual effort. Create automated test scripts using tools like Python, Ansible, or Jenkins. Maintain and update automation scripts as needed. Technical Leadership: Mentor and guide junior test engineers. Stay up-to-date with emerging network technologies and testing methodologies. Provide technical expertise and support to other teams within the organization. Mandatory skills: Deep understanding of routing and switching protocols BGP, OSPF, EIGRP, STP, etc. Knowledge of network hardware and software routers, switches, firewalls, load balancers. Experience with network testing methodologies: Agile, Waterfall, etc. Proficiency in test automation tools: Python, Ansible, Jenkins. Understanding of network performance metrics: throughput, latency, jitter, packet loss. Familiarity with security testing concepts: vulnerability assessments, penetration testing. Networking Test Tools, monitoring and analysis tools: Hands-on experience with network testing tools and equipment, such as packet analyzers, network simulators, and traffic generators, Wireshark, NetFlow, SNMP. Desired skills: Strong problem-solving and analytical skills: ability to identify and resolve complex network issues. Excellent communication and interpersonal skills: effective collaboration with diverse teams. Attention to detail and accuracy: meticulous in documenting test results and defects. Leadership and mentoring abilities: guiding and developing junior test engineers. Ability to work independently and as part of a team: adaptability to different work environments. Continuous learning mindset: staying updated with emerging network technologies and testing methodologies Certifications like CCIE (R&S) and/or JNCIE (SP) would be an added advantage. Preferred Qualifications Experience 15+ years of experience from Telecommunication or Networking background. Education B.Tech/BE/M.Tech/ME (CSE/ECE) or any other equivalent degree. Diversity and Inclusion Statement : Tejas Networks is an equal opportunity employer. We celebrate diversity and are committed to creating all-inclusive environment for all employees. We welcome applicants of all backgrounds regardless of race colour, religion, gender, sexual orientation, age or veteran status. Our goal is to build a workforce that reflects the diverse communities we serve and to ensure every employee feels valued and respected.

• Implementing scalable Juniper networks according to client specifications. • Installing and configuring networking hardware • Testing and troubleshooting installed Juniper systems. Contact No: 8527738652 Email: ritesh.seth@targustech.com