Jobs / United States / Arista Networks INC

Arista Networks INC

Software Engineer, Layer1

Nashua, NH, US Posted 3 months ago

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Sponsorship verdict

Sponsorship possible

One solid signal, not two. Worth applying, and worth asking about sponsorship early.

  • Employer is on a government sponsor recordThe US Department of Labor certified 120 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first.
  • The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
  • No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area.
  • What Arista Networks INC paid sponsored hires in similar roles11 certified filings for “Software Engineer” (Software Developers) in NH: $106k–$116k, median $106k.
  • Confirmed live todayWhen a source last listed this job as open.
Details and sources
Employer is on a government sponsor record
The US Department of Labor certified 120 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. Source: LCA disclosure data (US Department of Labor (OFLC)).
No salary bar for this route
H-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
What Arista Networks INC paid sponsored hires in similar roles
11 certified filings for “Software Engineer” (Software Developers) in NH: $106k–$116k, median $106k. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).

US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).

A verdict summarises public evidence. It is not legal advice and never a guarantee: the employer and the immigration authority decide. Sign in to factor in where you can already work.

About the role

Who You’ll Work With As a Layer1  software  engineer, you will get to work on  software  that manages the physical layer, where packets meet the outside world. Stable and reliable physical connectivity is critical for any network and that is your challenge. You will get to write control  software  that brings to life everything from the ubiquitous 1GBASE-T connectors to  400G  long reach optics that provide fiber connectivity across continents. Your  software  will need to work across a wide variety of  forwarding  engines, connectors and interface chips called gearboxes, which allow our hardware platforms to support diverse physical connectivity options within a product family. You will build instrumentation and telemetry tools that track physical link health parameters reported by the Layer1 components and enable operators to monitor and troubleshoot their links effectively. You will also work closely with our Optics teams to define standards for new media and bring them to market. Arista  Software  Engineering roles demand a strong and broad  software  engineering background. While the primary focus area for this role is Layer1  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 Layer1 to other areas, if you like. What You’ll Do • Interface with customers, product management and hardware engineers to come up with innovative new Layer1 features. • Architect, design and manage the development of these features. • Develop and maintain features using C,  C++  and  Python , review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features. • Work with hardware and manufacturing teams to bring new Layer1 components like Phys and Transceivers to market. • Collaborate with hardware engineers to design optimal  software  control interfaces for managing Layer1 components. • Provide technical leadership across features, projects and tools. • 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. • Mentor new and junior engineers to bring them up to speed in Arista's  software  development environment. • 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 C or  C++  and  Python . • Knowledge of UNIX or Linux • Knowledge of digital communication technologies like modulation and signal encoding schemes is a plus. • Understanding of IP networking and/or distributed  systems  is a plus • Experience working with low level hardware components is a plus • Applied understanding of  software  engineering principles • Strong problem solving and  software  troubleshooting skills • Ability to design a solution and implement features independently. • Ability to work in small teams. 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,

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