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Arista Networks is seeking a Senior Software Engineer to work on Layer1 software—the physical layer where packets meet the outside world. You will develop control software for physical connectivity components ranging from standard 1GBASE-T connectors to 1.6T long-reach optics enabling fiber connectivity across continents. Your work will span multiple forwarding engines, connectors, and interface chips (gearboxes) that allow hardware platforms to support diverse physical connectivity options.
Key responsibilities include:
- Interface with customers, product management, and hardware engineers to define innovative Layer1 features
- Architect, design, and manage feature development end-to-end
- Develop and maintain features using C, C++, and Python; review specifications and build automated test infrastructure
- Collaborate with hardware and manufacturing teams to bring new Layer1 components (Phys, Transceivers) to market
- Design optimal software control interfaces for managing Layer1 components
- Provide technical leadership across features, projects, and tools
- Work with Customer Support and System Test Engineers to analyze, mitigate, and fix production issues
- Mentor junior engineers in Arista's software development environment
Arista values a supportive, growth-oriented culture. Over time, as interests and business needs evolve, you may have opportunities to transition to other software areas.
REQUIREMENTS:
- Education & Experience: BS in Computer Science/Electrical Engineering/Computer Engineering + 8 years experience; OR MS + 6 years experience; OR PhD + 3 years experience; OR equivalent work experience
- Expert knowledge of C or C++ and Python
- Knowledge of UNIX or Linux
- Applied understanding of software engineering principles
- Strong problem-solving and software troubleshooting skills
- Ability to design solutions and implement features independently
- Ability to work in small teams
- PREFERRED: Knowledge of digital communication technologies (modulation, signal encoding schemes); understanding of IP networking and/or distributed systems; experience with low-level hardware components
