Datacom/L2/L3 Developer

Role: Lead Engineer / Senior Lead Engineer / Architect

Experience: 5 to 18 Years

Location: Bangalore, Pune

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:

• 518 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.