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L2/ L3 Protocol Developer

Harf IT Solutions Pvt Ltd
Bengaluru, Karnataka

Quick apply

Job details

Full-time

Qualifications

CI/CD
Operating systems
Software design
Software troubleshooting
DevOps
Data structures
iOS
OSPF
OS Kernels
C
SSL
Network protocols
Continuous integration
BGP
Computer networking
IPsec
MPLS
Linux
EIGRP
Multithreading
Software architecture

Full job description

Role: Senior Engineer / Lead Engineer / Senior Lead Engineer / Architect

Experience: 5 to 20 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 including Cisco IOS, IOS-XE, NX-OS, and open networking systems like SONiC.

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 on Linux platforms. (C, Linux kernels are mandatory)

· Debug and fix issues in existing protocol implementations and improve software stability.

· Architect and optimize 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.

Skills and Qualifications:

· 5–20 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:

o Layer 2: VLAN, STP, RSTP, MSTP, VXLAN, LLDP, LAG

o 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.

Work Location: Hybrid remote in Bengaluru, Karnataka (Bengaluru)

Quick apply

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