Arista Networks Logo

Arista Networks

Senior Software Engineer - Layer1 - C++

Posted Yesterday
Be an Early Applicant
In-Office or Remote
Hiring Remotely in Dublin, IRL
Senior level
In-Office or Remote
Hiring Remotely in Dublin, IRL
Senior level
Develop and maintain Layer 1 networking software in C, C++, and Python for physical connectivity components, optics, transceivers, and interface chips. Design features, testing infrastructure, telemetry, and software control interfaces in collaboration with hardware, manufacturing, product, and customer teams. Troubleshoot network and system-test issues, provide technical leadership, manage projects through deployment, and mentor junior engineers.
The summary above was generated by AI
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

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 1.6T 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.

#LI-EO1

Qualifications

  • BS Computer Science/Electrical Engineering/Computer Engineering + 8 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 6 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 3 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.

 

 

Additional Information

The working hours will be agreed in advance with the team manager.

Arista Networks Dublin, Dublin, IRL Office

2 Georges Dock IFSC 1, Dublin, Ireland

Similar Jobs

Yesterday
Remote or Hybrid
Dublin, IRL
Expert/Leader
Expert/Leader
Fintech • Payments • Software
Owns Flywire’s Irish higher education sales territory, driving new business, revenue growth, client retention, renewals, and platform adoption. Responsibilities include developing territory strategy, managing the full sales cycle, leading RFPs, increasing payment utilization, promoting ERP/SIS integrations, conducting strategic client reviews, and representing customer needs internally. The role requires senior consultative selling experience, higher education sector expertise, executive relationships in Ireland, and familiarity with Banner or SITS.
Top Skills: Ellucian BannerErpSalesforceStudent Information Systems (Sis)Tribal Sits
Yesterday
Remote or Hybrid
Ireland, IRL
Senior level
Senior level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Leads Pfizer’s environmental sustainability strategy across climate, Scope 3 emissions, biodiversity, nature, product sustainability, and sustainable sourcing. Manages supplier decarbonization programs, sustainability metrics, regulatory horizon scanning, risk assessments, governance, training, and communications. Facilitates cross-functional teams, advises stakeholders, represents Pfizer in external initiatives, and serves as a sustainability subject matter expert across the enterprise.
Top Skills: Microsoft TeamsWebex
Yesterday
In-Office or Remote
Dublin, IRL
Senior level
Senior level
Artificial Intelligence • Fintech • Payments • Business Intelligence • Financial Services • Generative AI
Leads APAC merchant risk operations for payments, owning team performance, service levels, quality, fraud and chargeback metrics, investigations, monitoring, and escalation workflows. Partners with Legal, Risk, Compliance, Product, and Engineering to implement controls and improve risk tooling. Drives automation and AI adoption, manages senior staff across locations, influences stakeholders, and ensures portfolio risk aligns with enterprise risk appetite.
Top Skills: AIAi/MlAnalytics DashboardsCase Management SystemsData ToolsLlmsRules Engines

What you need to know about the Dublin Tech Scene

From Bono and Oscar Wilde to today's tech leaders, Dublin has always attracted trailblazers, with more than 70,000 people working in the city's expanding digital sector. Continuing its legacy of drawing pioneers, the city is advancing rapidly. Ireland is now ranked as one of the top tech clusters in the region and the number one destination for digital companies, with the highest hiring intention of any region across all sectors.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account