Software Engineer (Python, networking, system design | 7+ years)

Cisco — Bangalore, India

Meet the team The Cisco Silicon One Bangalore team is at the heart of Cisco's next-generation networking innovation, developing the software, ASICs, and validation systems that power the industry's most advanced networking silicon. The team is building a unified, programmable silicon architecture that serves as the foundation for Cisco's future routing, switching, and AI/ML network infrastructure. Operating with the agility of a startup within Cisco's global ecosystem, the team designs, validates, and delivers high-performance, multi-terabit silicon solutions that enable faster, more scalable, power-efficient, and secure networks for service providers and web-scale customers worldwide. Your Impact Develop and enhance the core hardware validation framework for Cisco Silicon One ASICs. Design and automate end-to-end validation tests across hardware, simulation, and CI/CD environments. Build scalable, reliable test frameworks using modern software design principles and Python/pytest. Validate next-generation networking features including packet processing, QoS, ACLs, warm boot, and multi-device topologies. Collaborate with silicon, SDK, and architecture teams to ensure comprehensive test coverage and early defect detection. Own hardware smoke and regression testing to maintain high product quality across releases. Debug complex hardware and software issues, driving root cause analysis and resolution. Support bring-up and validation of new Silicon One ASICs and networking platforms. Minimum Qualification Strong Python and test-automation skills (pytest, CI, large test matrices) 7-12 years of experience in Software Development Understands networking fundamentals — L2/L3, ACLs, QoS/meters, tunnels, multicast, and packet forwarding concepts System design expertise — ability to architect large, evolving validation platforms with clear boundaries, interfaces, and ownership Proficiency in system design patterns — Demonstrated expertise in system design, software architecture,

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