About the role
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 optimisation of networking features across multiple platforms, including Cisco IOS, IOS-XE, NX-OS, and open networking systems like SONiC.
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 on Linux platforms. (C, Linux kernels are mandatory).
- Debug and fix issues in existing protocol implementations and improve software stability.
- Architect and optimise multi-threaded and socket-based communication systems.
- Work closely with cross-functional teams to integrate features into existing systems (Cisco OS and SONiC NOS).
- 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.
Requirements:
- 7-12 years of hands-on experience in L2/L3 protocol development.
- Strong programming skills in 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, OPEN SSL.
- Proficiency in Multi-threading and Socket Programming.
- Excellent knowledge of data structures and memory management.
- Experience with Cisco operating systems - IOS, IOS-XE, NX-OS.
- 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.