Software Engineer (C and Python, Linux OS, networking domain, L2/L3 forwarding protocols| 4-9 Years))

About the role

The Cisco BNG User Plane team builds the carrier-grade subscriber data path on IOS-XR routing platforms (Cisco 8000, ASR 9000) powered by Cisco Silicon One (SiOne) NPUs. We deliver the cnBNG User Plane Functions (UPFs) and integrated BNG forwarding — the high-performance packet path that terminates and forwards millions of broadband subscriber sessions at line rate in the CP-UP separated (CUPS) architecture.

What you'll do

• As a Software Engineer on the BNG User Plane, you will design, code, optimize
• Deliver high-performance L2/L3 and subscriber features, own their unit/integration/system/scale testing and automation, and drive quality from design through FCS
• Mentor junior engineers and use modern AI-driven workflows to streamline development, testing, and debugging

What you need

• 4–9 yrs of experience
• Python
• C
• Linux
• Networking
• C++
• Embedded C
• Company Secretary or B.Tech or B.E.

Good to have

• Test automation
• LLMs
• iOS