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Arista Jobs (NOW HIRING)

Arista Networks

BIOS Software Engineer

Nashua, NH · On-site

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 ...

Arista Networks

BIOS Software Engineer

Santa Clara, CA · On-site

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 ...

Arista Networks

POC Engineer

Nashua, NH · On-site

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 ...

Arista Networks

Major Account Manager

Atlanta, GA · On-site

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 ...

Arista Networks

Sales Operations Manager

Columbus, OH · On-site

Arista is a well-established and profitable company with over $8 billion in revenue. Arista's award-winning platforms, ranging in Ethernet speeds up to 800G bits per second, redefine scalability ...

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$241.3K

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How much do arista jobs pay per year?

As of Sep 2, 2026, the average yearly pay for arista in the United States is $241,295.00, according to ZipRecruiter salary data. Most workers in this role earn between $200,000.00 and $300,000.00 per year, depending on experience, location, and employer.

What is an Arista engineer?

Arista engineers are professionals who design, deploy, and manage networking solutions using Arista Networks’ products, such as switches and routers. They are responsible for implementing high-performance, scalable data center and cloud networking infrastructures. Their expertise includes configuring Arista EOS (Extensible Operating System), automating network operations, and ensuring network security and reliability. Arista engineers often work with large enterprise networks, data centers, and cloud service providers to optimize network performance and support business needs.

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

To thrive as an Arista Network Engineer, you need deep knowledge of networking concepts, experience with routing and switching, and typically a degree in computer science or a related field. Familiarity with Arista EOS, automation tools like Python and Ansible, and relevant certifications such as Arista ACE or Cisco CCNP are highly valued. Strong problem-solving abilities, effective communication, and adaptability help engineers excel in rapidly changing network environments. These skills ensure reliable network performance, efficient automation, and collaborative troubleshooting in complex enterprise infrastructures.

What are some typical challenges faced by network engineers working with Arista equipment, and how can they be overcome?

Network engineers working with Arista equipment often encounter challenges such as integrating Arista switches into existing multi-vendor environments, mastering Arista’s EOS (Extensible Operating System), and keeping up with rapid firmware updates. Successful engineers address these issues by thoroughly familiarizing themselves with EOS’s command-line interface, utilizing Arista’s extensive online documentation, and actively participating in user forums. Collaboration with cross-functional teams, including network architects and support staff, is also key to troubleshooting complex issues and ensuring smooth deployments.

What is the difference between Arista vs Cisco Network Engineer?

AspectAristaCisco Network Engineer
CertificationsArista certifications, Cisco certifications (e.g., CCNA, CCNP)
Work EnvironmentData centers, high-performance networks, cloud infrastructure
Industry UsageTechnology, cloud providers, data centers
Common Search/ComparisonNetwork design, data center networking, high-speed switching

Both Arista and Cisco Network Engineers work in network infrastructure, often in data centers and enterprise environments. While Cisco Network Engineers typically hold Cisco certifications and work with Cisco hardware, Arista Network Engineers focus on Arista switches and networking solutions, often requiring similar certifications. The roles overlap in designing, implementing, and maintaining high-performance networks, but they differ in hardware focus and specific vendor expertise.

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Arista jobs near you
Infographic showing various Arista job openings in the United States as of August 2026, with employment types broken down into 87% Full Time, 3% Part Time, 9% Contract, and 1% Nights. Highlights an 83% Physical, 7% Hybrid, and 10% Remote job distribution, with an average salary of $241,295 per year, or $116 per hour.

BIOS Software Engineer

Arista Networks

Nashua, NH • On-site

Full-time

Re-posted 27 days ago

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's BIOS team is responsible for developing and maintaining the CPU firmware, BIOS and Boot Loader software used in all Arista products.. This work includes bringing up new CPU boards, getting EOS to boot securely, efficiently and reliably. This work also involves designing and implementing new features in EOS to manage and secure the low level system initialization and booting subsystems, as well as keeping pace with the latest developments in the open source and proprietary BIOS development communities.
Arista BIOS software engineers are also responsible for low level software driving the CPU subsystems on all Arista products. You will evaluate new CPUs and work with CPU vendors and BIOS vendors to integrate their low level firmware into Arista products. You will work closely with hardware engineers to bring up, validate and test new CPUs in our hardware products.
Arista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is firmware, BIOS and booting software, your work will cover all aspects of software development spanning the design and development of new features, debugging problems and fine tuning code for reliability 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.
What You'll Do
  • Design, develop, integrate and maintain the low-level CPU software in Arista products.
  • Develop automated tests using C, C++ and Python to validate your features.
  • Work with hardware engineers and vendors to qualify new CPUs and related components for use in Arista products.
  • Track ongoing developments in the Linux Kernel and identify features and functionality of interest to Arista for our products and for internal development needs.
  • Work with upstream open source BIOS communities to contribute features back to the mainline.
  • Review and contribute to functional and design specifications written by other engineers.
  • 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.
  • Provide technical leadership across features, projects and tools.
  • 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 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 1 years experience, or equivalent work experience
  • Expert knowledge of and extensive experience programming in C required. Knowledge of C++ and Python is desirable.
  • Experience designing and developing software in CPU firmware, BIOS and boot loader environments.
  • Experience bringing up new CPU boards.
  • Significant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level CPU firmware, BIOS and boot loader software.
  • Familiarity with Linux kernel architecture, design and implementation desirable
  • Understanding of IP networking architecture, design and principles desirable
  • Applied understanding of modern software engineering principles and practices
  • Strong problem solving and troubleshooting skills.
  • Strong software design and implementation skills.
  • Ability to work independently and in small teams.
  • Ability to communicate articulately, and document your designs and implementations clearly, and concisely.
  • Familiarity with and experience working with the x86 and ARM CPU architectures

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.

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