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Senior/Lead Software Engineer, EOS Layer 2 and Network Services
Posted by Arista Networks on 31 May 2026, 132 days ago. Still on their SmartRecruiters board when we checked 26 min ago.
What the posting is about
Design, develop, and maintain Layer 2 network features using C, C++, and Python. Collaborate with cross-functional teams to deliver top-notch network solutions. Mentor junior engineers and provide technical leadership.
Read out of the posting
Levelmid
Experience asked6+ years
EmploymentFull time
LocationAustin, TX, United States
RemoteNot stated
Visa sponsorshipNot stated
SalaryNot published, and most postings do not
Posted2026-05-31
Found viasmartrecruiters, direct from their system
We saw it 4 months after it went up.
The posting, as the company wrote it
Employment: Full-time
Experience level: Mid-Senior Level
Job Description
Who You’ll Work With
The  EOS  Platform Independent (PI) Layer 2 and network services team is responsible for building innovative and scalable solutions in the areas of Layer 2 protocols including  802.1X , LACP,  MACsec , Multi-chassis LAG (MLAG), STP, and network management and security services such as  AAA  (TACACS/RADIUS),  DHCP ,  DNS , IP Locking, Logging, SNMP, SSH/OpenSSL, ZTP etc. This team is also responsible for developing network monitoring  software  using protocols such as SFlow, IPFIX, and for device configuration using CLI, programmable RPC/REST  APIs  and  SDK . This is a global team spanning multiple geographies working on cutting edge features that are deployed in the largest Campus,  Cloud  provider, Enterprise and Service Provider networks.
Arista provides an open Engineering-driven culture which fosters innovation and enables engineers to Learn, Lead and Thrive. Our adoption of modern  software  tools and processes and strong focus on automation enables our engineers to be amongst the most productive in the industry. Arista's products are purpose built with the scale, performance and quality required to operate in some of the most demanding environments in the industry. This provides engineers the platform and rigor to learn and gain experience in building complex, distributed and scalable  software   systems . Arista engineers collaborate and work seamlessly across various feature areas to deliver top-notch network solutions.
What You’ll Do
Understand requirements from customers, product managers and field engineers, and write functional specifications
Architect, design, develop and maintain Layer 2, network management, monitoring and security features using C, C++ and Python
Author test plans, build automated tests and infrastructure to test the features.
Work with support engineers and customers to troubleshoot and resolve problems in their networks
Own all aspects of development and delivery of software
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
Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems
Qualifications
BS Computer Science/Electrical Engineering/Computer Engineering + 6 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 4 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 3 years experience, or equivalent work experience
Proficiency in C or C++ and Python
Software development experience with Linux
Knowledge of layer 2 protocols like 802.1X, MACsec, LACP, STP, etc -or-
Knowledge of network management and monitoring protocols like AAA, DNS, DHCP, SNMP, SFlow, IPFIX, OpenConfig, etc
Understanding and ability to apply software engineering principles
Strong problem solving and software troubleshooting skills
Demonstrated technical leadership, strong communication skills, and the ability to work in a small team environment
Ability to design a solution and implement features independently
Hands on experience developing networking or distributed systems software is a plus
#LI-SP1
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.
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.
Also open at Arista Networks
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