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Sr Software Engineer--Routing Platform & Infrastructure

Milpitas, California, US💼 Full-time💰 $167,700–$167,700🗓 2026-09-03 → 2026-09-26

Core

Design and develop scalable software systems for high-speed networking platforms, coherent optical transceivers, PHY devices, and next-generation NPU-based systems at the intersection of optics and silicon photonics.

Role type

Senior IC software engineer (routing platform & infrastructure)

Builds

Cisco 8000 series high-performance routing platforms, custom Silicon One NPUs, and distributed system software

Domain

Networking infrastructure, silicon photonics, and AI-era data transport

Deliverable

production ML models | product features

Required skills

C/C++, Python, Data Structures and Algorithms, Embedded systems development, Linux OS programming, Platform Infrastructure software development, Optics software development

Preferred skills

Coherent optics (ZR/ZR+), PHY/SerDes, FEC, ASIC/NPU, DSP-based systems, CMIS/SFF standards, IOS-XR/SONiC/FBOSS, AI networking infrastructure, Optical line systems

Technologies

Linux, C/C++, Python, CMIS, SFF, IOS-XR, SONiC, FBOSS

Responsibilities

Own the lifecycle of management frameworks for hardware-optics interoperability, bridge hardware and software by integrating control-plane and datapath logic, architect robust Linux-based embedded solutions for optics/PHY integration, design diagnostic and telemetry infrastructure, lead end-to-end design of medium-scope features, provide technical mentorship and code reviews

Seniority

Senior, hands-on IC

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