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Arista Networks Jobs (NOW HIRING)

Software Test Engineer

Santa Clara, CA · On-site

$110K - $185K/yr

Company Description Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless ...

Company Description Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless ...

Company Description Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless ...

Company Description Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless ...

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Arista Networks information

What is Arista Networks?

Arista Networks is a leading computer networking company that designs and sells multilayer network switches, software, and related technology for large data center, cloud computing, high-performance computing, and high-frequency trading environments. The company is known for its high-performance, programmable networking solutions and its EOS (Extensible Operating System) software platform. Arista's products are widely used by enterprises, service providers, and cloud titans to build scalable and reliable network infrastructures.

What are the key skills and qualifications needed to thrive as an Arista Networks network engineer?

To excel as a Network Engineer at Arista Networks, you need in-depth knowledge of networking protocols, data center architectures, and a degree in computer science or a related field. Familiarity with Arista EOS, Python scripting for automation, and certifications like CCNP or Arista ACE are highly valued. Strong problem-solving skills, attention to detail, and effective communication set top candidates apart. These skills ensure efficient network operations, rapid troubleshooting, and successful collaboration in dynamic environments.

What are some common challenges faced by engineers working at Arista Networks, and how can new hires prepare for them?

Engineers at Arista Networks often work on complex, large-scale networking solutions that require a deep understanding of both hardware and software. A common challenge is rapidly adapting to new technologies and protocols in a fast-paced, innovation-driven environment. New hires can prepare by strengthening their foundational knowledge of networking concepts, familiarizing themselves with Arista’s EOS (Extensible Operating System), and being proactive in seeking mentorship from experienced colleagues. Collaboration and effective communication are essential, as teams frequently work cross-functionally to solve customer problems and develop new features.
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Cities with the most Arista Networks job openings:

What states have the most Arista Networks jobs?

States with the most job openings for Arista Networks jobs include:

Infographic showing various Arista Networks job openings in the United States as of August 2026, with employment types broken down into 33% Full Time, 66% Part Time, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

Software Engineer, Network Systems

Arista Networks

Nashua, NH • On-site

Full-time

Re-posted 6 hours ago


Key responsibilities

  • Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications.

  • Work with hardware and manufacturing teams to bring new hardware to market.

  • Collaborate with hardware engineers to design optimal software control interfaces for managing hardware components.


Job description

Company Description

Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges.

At Arista we value the diversity of thought and perspectives that each employee brings to the table. We  believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation.

Our commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do.

Job Description

Who You’ll Work With

Arista Networks is looking for world-class Network Systems software engineers.

Network systems software is all about managing hardware components on switches and routers. As a software engineer in the Network Systems group, you will collaborate with hardware engineers to design and build novel features that help Arista hardware run effectively and efficiently. You will write software that controls  everything from temperature sensors, fan controllers, power controllers, storage devices to FPGAs, NICs and PCIE switches. You will design abstractions that allow this software to be easily packaged and integrated into hardware drivers that manage all our hardware. You will also get to work closely with our hardware engineers throughout the lifecycle of our products - ranging from influencing hardware designs for ease of software control, to bringing up brand new hardware and taking it through the development cycle to market.

Arista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Network Systems software, the role will cover all aspects of software development spanning the addition of new features, debugging problems and fine tuning code for scalability and performance. You will own your projects from definition to deployment and customer interactions, and you will be responsible for the quality of everything you deliver. 

Arista Software Engineering prides itself on a supportive and growth oriented culture. Over time, as your interests change, coupled with evolving business needs you will have the opportunity to switch from packet forwarding to other areas, if you like. 
 

What You’ll Do

  • 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.
  • Work with hardware and manufacturing teams to bring new hardware to market.
  • Collaborate with hardware engineers to design optimal software control interfaces for managing hardware components.
  • 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.
Qualifications
  • BS Computer Science/Electrical Engineering/Computer Engineering + 3 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 2 year experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering +1 year experience, or equivalent work experience
  • Knowledge of C or C++ and Python.
  • Knowledge of UNIX or Linux
  • Experience working with low level hardware components
  • Understanding of IP networking and/or distributed systems 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.

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Additional Information

Arista Networks is an equal opportunity employer.  Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law.  All your information will be kept confidential according to EEO guidelines.