[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Arista Networks jobs](https://jobs.opennash.com/companies/arista-networks/) · [Search jobs](/search/) Arista Networks · Budapest, OR, Hungary # C++ Software Engineer with Linux - Hungary, Romania, Greece & Spain Budapest, OR, Hungary Full-time Software Engineering Listed on Arista Networks’s official careers site. Posted September 24, 2026. Check that it is still open and apply there. [Apply on Arista Networks’s careers site →](https://jobs.smartrecruiters.com/AristaNetworks/744000151582249-c-software-engineer-with-linux-hungary-romania-greece-spain) [OpenNash Jobs](https://jobs.opennash.com/) / [Arista Networks](https://jobs.opennash.com/companies/arista-networks/) / C++ Software Engineer with Linux - Hungary, Romania, Greece & Spain ## 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 #LI-EO1 ## 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. ## At a glance - Posted by the employer: Sep 24, 2026 - First seen by OpenNash: Jul 10, 2026 - Last checked: Oct 17, 2026 - Listed for: 99 days - Location: Budapest, OR, Hungary - Employment type: Full-time[Apply on Arista Networks’s careers site →](https://jobs.smartrecruiters.com/AristaNetworks/744000151582249-c-software-engineer-with-linux-hungary-romania-greece-spain) ## More jobs at Arista Networks ### [BIOS Senior/Lead Software Engineer](https://jobs.opennash.com/companies/arista-networks/jobs/d61c9fbdac6babe15406/) Austin, TX, United States ### [BIOS Senior/Lead Software Engineer](https://jobs.opennash.com/companies/arista-networks/jobs/0eee0936a6bb34d8b2f8/) Nashua, NH, United States ### [BIOS Senior/Lead Software Engineer](https://jobs.opennash.com/companies/arista-networks/jobs/3503762717cbfd4c01cf/) Santa Clara, CA, United States ### [BIOS Senior/Lead Software Engineer](https://jobs.opennash.com/companies/arista-networks/jobs/28ea58f543a432033faa/) Vancouver, BC, Canada ### [BIOS Software Engineer](https://jobs.opennash.com/companies/arista-networks/jobs/d134fa186c7190f764cc/) Austin, TX, United States ## Similar jobs at other companies ### [Linux Software Engineer](https://jobs.opennash.com/companies/qualcomm/jobs/442036ba114989584259/) Qualcomm · Bangalore, India ### [Linux Software Engineer, Staff](https://jobs.opennash.com/companies/qualcomm/jobs/f47ae3660f196001d164/) Qualcomm · Bangalore, India ### [Lead Software Engineer - Linux Platform Validation Engineer](https://jobs.opennash.com/companies/jpmorganchase/jobs/cda6ed3b2aeee506c159/) JPMorganChase · LONDON, United Kingdom ### [Lead Software Engineer- Infrastructure / Linux](https://jobs.opennash.com/companies/jpmorganchase/jobs/d7e823f97c394f7ddccc/) JPMorganChase · LONDON, United Kingdom ### [Senior Software Engineer – Firmware (C++, Linux) - EPNA](https://jobs.opennash.com/companies/siemens/jobs/86ee1c57529e609d6a8c/) Siemens OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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