Senior Software Engineer - Network Security Developer

Role: Technical Lead Developer Experience: 8 to 16 Years Location : Bangalore Role Summary We are seeking experienced professionals to take on the role focused on L2/L3 networking protocol development. The ideal candidate will have deep expertise in C programming, Linux environments, and protocol-level software design. This role involves leading design, development, debugging, and optimization of networking features across multiple platforms and open networking systems.

Key Responsibilities Lead the design and development of L2/L3 network protocol features and enhancements. Own and drive the implementation of new networking functionalities in C/C++ on Linux platforms. (C, Linux kernels are mandatory) Expertise in network security concepts (TCP/IP, IPsec, VPN, routing, NAT, DPI, etc.), Firewall protocols, Sonic, NOS. Debug and fix issues in existing protocol implementations and improve software stability.

Architect and optimize multi-threaded and socket-based communication systems. Provide technical mentorship to junior engineers and contribute to design/code reviews. Collaborate with QA and support teams for validation, testing, and issue resolution.

Document software design, architecture, and troubleshooting guides. Skills and Qualifications: 8–16 years of hands-on experience in L2/L3 protocol development. Strong programming skills in C/C++, OS within Linux environments(Mandatory) Experience with networking protocols such as: Layer 2: VLAN, STP, RSTP, MSTP, VXLAN, LLDP, LAG Layer 3: BGP, OSPF, RIP, EIGRP, IGMP, PIM, MPLS, GRE, IPSec, MacSec, NAT, VPN, TCP, UDP, Open SSL Proficiency in Multi-threading and Socket Programming.

Excellent knowledge of data structures and memory management. Strong understanding of software architecture and modular design for networking systems. Desirable Skills: Experience with SONiC Network Operating System (NOS).

Knowledge of programmable packet pipelines (e.g., P4). Familiarity with DevOps tools and CI/CD pipelines for network software. Exposure to open networking and white-box switch ecosystems.