JOB DETAILS

Software Engineer - Remote Hungary, Romania, Greece & Spain

CompanyArista Networks
LocationBudapest
Work ModeRemote
PostedAugust 9, 2026
About The Company
Arista Networks is an industry leader in data-driven, client to cloud networking for large data center/AI, campus and routing environments. Arista’s award-winning platforms deliver availability, agility, automation, analytics and security through an advanced network operating stack. visit https://www.arista.com. Additional information and resources can be found at: www.arista.com www.twitter.com/aristanetworks www.facebook.com/AristaNW www.youtube.com/user/AristaNetworks
About the Role

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 software engineers to join our Extensible Operating System (EOS) software development team. As a core member of the EOS team, you will be part of a fast-paced, high caliber team-building features to run the world's largest data center networks. Your software will be a key component of Arista's EOS, Arista's unique, Linux-based network operating system that runs on all of Arista's data center networking products.

The EOS team is responsible for all aspects of the development and delivery of software meant to run on the various Arista switches. You will work with your fellow engineers and members of the marketing team to gather and understand the functional and technical requirements for upcoming projects. You will help write functional specifications, design specifications, test plans, and the code to bring all of these to life. You will also work with customers to triage and fix problems in their networks. Internally, you will develop automated tests for your software, monitor the execution of those tests, and triage and fix problems found by your tests. At Arista, you will own your projects from definition to deployment, and you will be responsible for the quality of everything you deliver.

What You’ll Do

This role demands strong and broad software engineering fundamentals, and ideally a good understanding of networking including capabilities like L2, L3, and fundamentals of commercial switching HW. Your role will not be limited to a single aspect of EOS at Arista, but cover all aspects of EOS.

Responsibilities:

  • Write functional specifications and design specifications for features related to forwarding traffic on the internet and cloud data centers.
  • Independently implement solutions to small-sized problems in our EOS software, using the C and C++ programming languages.
  • Write test plan specifications for small-sized features in EOS, and implement automated test programs to execute the cases described in the test plan.
  • Debug problems found by our automated test programs and fix the problems. 
  • Work on a team implementing, testing, and debugging solutions to larger routing protocol problems.
  • Worth with Customer Support Engineers to analyze problems in customer networks and provide fixes for those problems when needed in the form of new software releases or software patches.
  • 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.
  • Review and contribute to the specifications and implementations written by other team members.
  • Help to create a schedule for the implementation and debugging tasks, update that schedule weekly, and report it to the project lead.

#Embedded Software Engineer #Embedded C #C++ #Microcontrollers #ARM Cortex-M #RTOS #Device Drivers #Embedded Linux #debugging #firmware development #hardware-software integration

 

    Qualifications

    • BSc, MS or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering with 5+ years of related post graduate work experience
    • Knowledge of C and/or C++.
    • Knowledge of UNIX or Linux.

    #LI-EO1

    Key Skills
    CC++LinuxUnixNetworkingL2L3Software engineeringAutomated testingDebuggingRouting protocolsData center networkingFunctional specificationsDesign specificationsTechnical requirements
    Categories
    SoftwareTechnologyEngineering
    Benefits
    Work-life balanceInclusive environment
    Job Information
    📋Core Responsibilities
    You will design, implement, and test features for Arista's Linux-based Extensible Operating System (EOS) to support large-scale data center networks. Additionally, you will collaborate with cross-functional teams and customer support to troubleshoot, debug, and resolve complex networking issues.
    📋Job Type
    full time
    📊Experience Level
    5-10
    💼Company Size
    5841
    📊Visa Sponsorship
    No
    💼Language
    English
    🏢Working Hours
    40 hours
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