Senior Packet Forwarding Engineer - Lead Network Software

Arista; Nashua (NH); On-site; USD 140,000 - 190,000; Full time

Job summary

Arista Networks is seeking a Senior/Lead Packet Forwarding Engine Software Engineer to design and implement high-performance packet forwarding features in EOS. You will collaborate with customers, product management, and engineering to translate requirements into scalable software.

The role emphasizes expertise in C, C++, Python, and Linux, with opportunities to mentor others, own projects end-to-end, and grow within a supportive, growth-oriented culture.

Qualifications

• Expert knowledge of C or C++ and Python.
• Knowledge of UNIX or Linux.
• Understanding of IP networking and/or distributed systems.
• Experience working with packet forwarding chips and pipelines is a plus.
• Applied understanding of software engineering principles.
• Strong problem solving and software troubleshooting skills.
• Ability to design a solution and implement features independently.
• Ability to work in small teams.

Responsibilities

• Interface with customers and product management to define packet forwarding features and solutions.
• Architect, design and manage the development of these features.
• Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.
• Provide technical leadership across features, projects and tools.
• Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.
• Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
• Mentor new and junior engineers to bring them up to speed in Arista's software development environment.

Skills

C/C++

Python

UNIX/Linux

IP Networking

Distributed Systems

Software Engineering Principles

Problem Solving

Small Team Collaboration

Education

BS Computer Science/Electrical Engineering/Computer Engineering

MS Computer Science/Electrical Engineering/Computer Engineering

Ph.D. in Computer Science/Electrical Engineering/Computer Engineering

Job description

Arista Networks is seeking a Senior/Lead Packet Forwarding Engine Software Engineer to design and implement high-performance packet forwarding features in EOS. You will collaborate with customers, product management, and engineering to translate requirements into scalable software.

The role emphasizes expertise in C, C++, Python, and Linux, with opportunities to mentor others, own projects end-to-end, and grow within a supportive, growth-oriented culture.