Lead Network Software Developer - Segment Routing/ MPLS

ACL Digital; Dadri, Chennai District, Bengaluru; Hybrid; INR 4,000,000 - 6,000,000; Full time

Job summary

ACL Digital is seeking a Senior Software Engineer with deep expertise in Layer 3 networking, Segment Routing, and MPLS in a Linux environment. You will design and implement routing protocols (IS-IS, OSPF, BGP) and SR-based features, while optimizing MPLS solutions and L2/L3 services.

Strong C/C++ skills and debugging expertise are required. The role emphasizes multi-threaded forwarding plane development and collaboration with hardware SDKs (Broadcom Jericho+), ensuring high performance and

Qualifications

• 7+ years of experience designing and developing Layer 3 networking protocols.
• Hands-on C/C++ programming in Linux environments with debugging skills.
• Familiarity with SR-MPLS, MPLS, BGP/OSPF/IS-IS and IPv4/IPv6 routing concepts.

Responsibilities

• Design, develop, and optimize Layer 3 networking protocols (IS-IS, OSPF, BGP).
• Work on Segment Routing technologies including SR-MPLS and SR-based features.
• Contribute to MPLS-based solutions (LDP, RSVP, BGP LU) and related services.
• Implement L2/L3 services over Segment Routing/MPLS (L2VPN, EVPN).
• Collaborate on forwarding plane software in a Linux multi-threaded environment.
• Debug and troubleshoot complex networking issues using GDB/Valgrind/GCov.

Skills

C/C++

Layer 3 networking

Segment Routing

MPLS

Linux

GDB

Valgrind

GCov

Broadcom Jericho+

IPv4/IPv6

ACLs

Route maps

Tools

Broadcom SDK Jericho+

Job description

Job Requirement: Networking Software Development Segment Routing

7+ Years minimum industry experience required

Job Summary:

We are looking for a highly skilled Senior Software Engineer with strong expertise in Layer 3 networking protocols and system-level programming. The ideal candidate will have hands‑on experience in designing and developing routing protocols, Segment Routing, and MPLS technologies, along with solid C/C++ programming skills in a Linux environment.

Key Responsibilities:

• Design, develop, and enhance Layer 3 networking protocols such as IS-IS, OSPF, and BGP.
• Work on Segment Routing technologies including SR-MPLS, OSPF-SR, IS-IS SR, TI-LFA, BFD, and QoS.
• Contribute to development and optimization of MPLS-based solutions (LDP, RSVP, BGP LU).
• Implement and support L2/L3 services over Segment Routing/MPLS (L2VPN, L3VPN, EVPN).
• Develop features related to IPv4/IPv6, routing policies, access control lists, and route maps.
• Collaborate on forwarding plane software development and integration (preferably with Broadcom SDK Jericho+ chipset).
• Debug and troubleshoot complex networking and system-level issues.
• Work in a multi-threaded Linux environment, ensuring high performance and scalability.
• Use debugging and performance analysis tools like GDB, Valgrind, and GCov.

Required Skills & Qualifications:

• 7+ years of experience in design and development of Layer 3 networking protocols (IS-IS, OSPF, BGP).
• Strong hands‑on experience in C/C++ programming and debugging.
• Experience working in Linux-based systems with multi-threading.
• Solid understanding of IPv4/IPv6 networking, routing policies, ACLs, and route maps.
• Familiarity with networking tools for debugging and performance analysis.

Preferred Skills:

• Hands‑on experience with Segment Routing (SR-MPLS, OSPF-SR, IS-IS SR, TI-LFA, BFD, QoS).
• Experience with MPLS protocols such as LDP, RSVP, and BGP LU.
• Knowledge of L2VPN, L3VPN, and EVPN services.
• Exposure to Segment Routing in IPv6 data plane.