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Salary
≈ $42k – $92k per year (Estimated)
Location
Remote (Ireland)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 24, 2026. First seen by Alion on Sep 23, 2026. Arista Networks scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Arista Networks is an American networking company founded in 2004 that sells high-speed ethernet switches and routers for data centres, campus networks and increasingly artificial intelligence clusters. Its differentiator is EOS, a network operating system built on an unmodified Linux kernel with a published state database, which allows programmatic control and streaming telemetry that traditional switch software could not offer. Headquartered in Santa Clara and listed on the New York Stock Exchange, it counts the largest cloud operators among its biggest customers and has taken substantial share from incumbent switch vendors in the data centre.

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.

Who You'll Work With

The Platform team who are the programmers working closest to the hardware and programming chips.Arista Networks is looking for world-class Linux Kernel and BIOS software engineers to join our Dublin Kernel software team. Our Kernel team is responsible for keeping pace with the latest developments in the Linux Kernel and integrating them for our internal use, both for development and as a base for Arista EOS to run on. This work often involves extending and developing new kernel features related to functionality that we rely on and working with the kernel community to get them integrated upstream. Kernel software engineers are also responsible for the CPU subsystems on all Arista products. You will evaluate new CPUs and work with CPU/BIOS vendors to integrate their stacks into EOS. You will also be responsible for bringup and qualification of these components into our hardware products.

What You'll Do

Arista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Kernel/BIOS 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 Kernel and BIOS to other areas, if you like.

  • BS Computer Science/Electrical Engineering/Computer Engineering
  • 5+ years experience of C or C++ and Python.
  • Hands-on experience working on Linux Kernel software is a plus.
  • 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 it successfully.
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