Arista Networks
Hardware and software for cloud networking
Network Engineer Intern - Test
Six-month onsite internship in Dublin.
About the job
- Pursuing a Bachelor’s, Master’s, or PhD in Computer Science, Electrical Engineering, Computer Engineering, or a related field.
- Understanding of core networking protocols and an aptitude for network engineering.
- Familiarity with scripting, such as Python.
- Basic understanding of the Linux operating system.
- Ability to solve problems and analyze issues effectively.
- Strong written and verbal communication and collaboration skills.
- Must be eligible to work in the Republic of Ireland; work visa sponsorship is not provided.
- Must be able to complete a six-month onsite internship on a full-time schedule.
- Work with a mentor to design and test network topologies, validating the functionality, performance, stability, and scalability of networking features and products.
- Write and execute test plans to verify all aspects of features and products and ensure comprehensive test coverage.
- Identify defects and validate their resolution.
- Conduct test plan reviews to solicit feedback and identify customer-centric use cases.
- Strengthen knowledge of network design, routing, switching, and IP addressing.
- Gain hands-on experience with Layer 2 and Layer 3 protocols, including TCP, UDP, IP, BGP, OSPF, and STP, as well as cloud network design and related technologies.
- Use scripting languages to automate elements of the testing workflow and test at scale.
- Apply structured testing approaches across functionality, performance, stability, reliability, scalability, and interoperability.
- Apply troubleshooting methodologies by diagnosing encountered issues.
About the company
Arista Networks builds high-performance cloud networking hardware and software for large data centers and cloud environments. Its product line includes spine-and-leaf switches and routers that form scalable data-center networks, combined with software for automation and visibility to simplify operations. The network gear is designed for hyperscale and I/O-intensive workloads, offering strong performance and power efficiency. Arista differentiates itself through a focus on scalable, energy-efficient hardware paired with software that improves automation and observability, serving cloud providers, enterprises, and financial institutions via direct sales, partners, and service contracts. The company's goal is to help customers deploy and manage scalable, efficient, and automated data-center networks that meet the demands of large-scale cloud workloads.
Company Size
5,001-10,000
Company Stage
IPO
Headquarters
Santa Clara, California
Founded
2004
Get referred to Arista Networks
See people who can refer or advise you
Simplify's Take
What believers are saying
- Q2 2026 revenue hit $3.04 billion, up 37.7%, and guidance rose to $12.6 billion.
- AI Fabrics revenue target reached $3.5 billion, with over 100 Etherlink customers.
- Cash and marketable securities totaled $13.3 billion, supporting $9.7 billion purchase commitments.
What critics are saying
- Microsoft and Meta still dominate revenue; losing either would crush 2027 growth.
- Purchase commitments hit $9.7 billion, while inventory rose to $2.5 billion in Q2 2026.
- Broadcom and hyperscaler white-box switching pressure Arista's Ethernet moat by 2027.
What makes Arista Networks unique
- Arista's EOS and CloudVision unify multivendor data-center automation.
- June 9, 2026 Etherlink 1.6T targets rack-scale AI fabrics.
- Arista sells Ethernet for AI clusters, not proprietary accelerator silicon.
Help us improve and share your feedback! Did you find this helpful?
Benefits
Health Insurance
Dental Insurance
Vision Insurance
Performance Bonus
Company Equity
Growth & Insights and Company News
6 month growth
↓ -1%1 year growth
↓ -1%2 year growth
↓ -1%J. Goldman & Co LP acquired a new position in shares of Arista Networks, Inc. (NYSE:ANET – Free Report) during the 2nd quarter, HoldingsChannel.com reports. The fund acquired 41,022 shares of the technology company’s stock, valued at approximately $6,969,000. A number of other large investors have also made changes to their positions in ANET. Lighthouse […]
Arista Networks has reported its first $3 billion quarter and raised its 2026 revenue guidance to $12.6 billion. However, the company's purchase commitments have surged to $9.7 billion from $3.6 billion a year earlier, nearly matching its trailing-twelve-month revenue of $10.5 billion. These multiyear commitments cover chips, memory, and components for AI infrastructure. Yet customer visibility extends only two quarters ahead, whilst the industry-wide shortage prompting these agreements is not expected to clear until 2028. Inventory has risen to $2.5 billion, and gross margin fell to 63.4% from 65.6% year-over-year. Management projects margins between 62% and 64% for the fiscal year, factoring in supply chain cost increases. The company holds approximately $13.3 billion in cash and marketable securities to support these commitments.
Tom Lee of Fundstrat has added Arista Networks and JPMorgan to his core stock ideas for 2026. Joseph Terranova of Virtus Investment Partners endorsed the Arista pick, citing the company's participation in AI networking infrastructure buildout and accelerating revenue growth. Kevin Simpson of Capital Wealth Planning supported the JPMorgan selection, calling it best-in-breed and highlighting a potential IPO market rebound as a catalyst. Arista's second-quarter revenue rose 38% year over year, with full-year guidance pointing to 40% annual growth. The company's AI Fabrics networking gear now serves over 100 customers. However, analysts note risks from customer concentration and potential AI spending slowdowns. Arista trades at a forward non-GAAP price-to-earnings ratio of 45.33, nearly double the sector median.
Brown Brothers Harriman's BBH Select Mid Cap ETF highlighted Arista Networks as a leading performance contributor in its Q2 2026 investor letter. The cloud networking solutions provider returned 38.4% during the quarter, driven by strong first-quarter results with record revenue and free cash flow. Arista reported 54% growth when including deferred product revenue, though guidance fell short of high expectations due to supply chain shortages and extended customer acceptance cycles for new AI products. The company maintained gross margin guidance of 62% to 64% despite rising component costs. Management expressed confidence in the 2026 outlook and expects to add one or two new customers representing over 10% of revenue beyond Microsoft and Meta. At quarter-end, Arista held an 85-hedge-fund following.
Arista Networks reported FY 2025 revenue of nearly $9.0 billion, up 28.6% year-over-year, with net income of roughly $3.5 billion and a 39% net margin. The company, which provides data centre networking equipment, carries no debt and generated close to $4.3 billion in free cash flow. However, two customers represented approximately 16% and 26% of annual revenue, creating concentration risk. International Business Machines posted FY 2025 revenue of nearly $67.5 billion, growing 7.6% year-over-year, with net income of close to $10.6 billion. The company's net margin improved to approximately 15.7% from 9.6% the previous year as it shifted toward higher-value software offerings. IBM provides software, consulting, and infrastructure services with partnerships including Amazon and Microsoft.