Senior Software Engineer - Layer1 - C++ at Arista Networks

Department: Software EngineeringSeniority in posting: entry

Setup: Remote
Location: Blackrock
Type: Full-time
Level: senior
Posted: Sep 25, 2026

Description

Arista Networks is hiring a Layer1 software engineer to develop control software, instrumentation, and telemetry tools for physical-layer networking components such as connectors, optics, and transceivers. The role covers feature architecture, C/C++ and Python development, automated testing, hardware and manufacturing collaboration, customer and support troubleshooting, and mentoring junior engineers. Candidates need a relevant bachelor’s degree plus 8 years of experience, or an MS plus 6 years, or a Ph.D. plus 3 years, along with expert knowledge of C or C++ and Python, UNIX or Linux, and strong software engineering and troubleshooting skills.

Required Skills

C/C++
Python
UNIX/Linux
Digital communication
IP networking
Software engineering
Troubleshooting

Additional Information

Minimum Education: Bachelor of Science in Computer Science, Electrical Engineering, or Computer Engineering; or Master of Science in one of those fields; or Ph.D. in one of those fields; or equivalent work experience
Required Previous Experiences: 8 years of experience with a BS, 6 years with an MS, or 3 years with a Ph.D.; or equivalent work experience
Preferred Qualifications: Digital communication technologies
IP networking or distributed systems
Low-level hardware components
Translation Company Name: Arista Networks

About Arista Networks

Arista Networks

Manufacturing

Arista Networks was founded to pioneer and deliver software-driven cloud networking solutions for large data center storage and computing environments. Arista’s award-winning platforms, ranging in Ethernet speeds from 10 to 100 gigabits per second,

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