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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 that provide fiber connectivity across continents. Your work will span multiple forwarding engines, connectors, and interface chips (gearboxes) that enable diverse physical connectivity options within product families.
Key responsibilities include:
- Interfacing with customers, product management, and hardware engineers to define innovative Layer1 features
- Architecting, designing, and managing feature development from definition through deployment
- Developing and maintaining features using C, C++, and Python; reviewing specifications and building automated test infrastructure
- Collaborating with hardware and manufacturing teams to bring new Layer1 components (Phys, Transceivers) to market
- Designing optimal software control interfaces for managing Layer1 components
- Providing technical leadership across features, projects, and tools
- Working with Customer Support Engineers and customers to analyze, mitigate, and fix network problems
- Collaborating with System Test Engineers to resolve issues found in testing
- Mentoring junior engineers in Arista's software development environment
- Building instrumentation and telemetry tools to track physical link health and enable operators to monitor and troubleshoot links
You will own projects end-to-end and be responsible for quality across all deliverables. Arista's engineering culture emphasizes growth and support; over time, you may transition to other software areas as interests and business needs evolve.
Requirements:
- Bachelor's degree in Computer Science, Electrical Engineering, or Computer Engineering plus 8 years of experience; OR Master's degree plus 6 years of experience; OR Ph.D. plus 3 years of 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 effectively in small teams
- Plus: Knowledge of digital communication technologies (modulation, signal encoding schemes), understanding of IP networking and/or distributed systems, experience with low-level hardware components
