Software Engineer | C or C++, Packet/Slow Path , L2& L3 Protocols | Bangalore |. 5 to 7 years
Cisco24 hours ago
Bengaluru, IndiaSenior
Responsibilities
- Design and develop forwarding features within the IOS-XR platform.
- Write high-performance C/C++ code for QoS, mirroring, slowpath, OAM, EVPN, VPLS, SRv6, Segment Routing, and MPLS functionality.
- Implement NPU data-plane logic, including microcode and SDK interactions for packet processing.
- Debug software defects using logs, core dumps, packet traces, and hardware/software analysis.
- Profile and tune software to reduce latency and maximize throughput.
- Use AI/LLM-based tools for code generation, unit-test creation, static analysis, and debugging.
Requirements
- 5–7 years of embedded software development experience for networking products.
- Strong C/C++ programming skills and Python scripting or test-automation experience.
- Knowledge of carrier-grade networking operating systems, forwarding architectures, and service-provider networks.
- Experience debugging complex embedded software issues, including memory management and hardware/software interactions.
- Experience with ClearCase, Valgrind, DDTS, GDB, or similar development and debugging tools.
- Working knowledge of NPU data-plane architectures, pipelining, table management, and packet-processing flows.
- Experience with Layer 2/Layer 3 technologies and protocols such as EVPN, VPLS, SRv6, Segment Routing, MPLS, IPv4/IPv6, TE tunnels, GRE tunnels, BFD, BGP Flowspec, ACLs, QoS, mirroring, OAM, or slowpath forwarding.
- Preferred experience with IOS-XR or similar carrier-grade network operating systems.
- Preferred knowledge of TCP/UDP, networking protocols, BCM, Silicon One, ezChip NPU programming, and AI/ML tools such as Copilot.
About Cisco
Cisco designs and sells networking, security, and collaboration platforms for enterprises, service providers, and governments, spanning routers and switches, Wi‑Fi, firewalls, zero‑trust, observability, and cloud-managed IT (Meraki) plus Webex. Its business model mixes hardware, software subscriptions, and support/consulting services. Founded in 1984 and headquartered in San Jose, California, Cisco is a public company traded on Nasdaq and serves customers across data centers, campuses, and service provider networks.