INTERNSHIP DETAILS

Network Engineer - Test (Intern)

CompanyArista Networks
LocationDublin
Work ModeOn Site
PostedSeptember 16, 2026
Internship Information
Core Responsibilities
You will work with a mentor to design and test network topologies, validating the functionality, performance, and stability of Arista's products. Additionally, you will write and execute test plans to identify defects and ensure comprehensive feature coverage.
Internship Type
full time
Company Size
5828
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Arista Networks is an industry leader in data-driven, client to cloud networking for large data center/AI, campus and routing environments. Arista’s award-winning platforms deliver availability, agility, automation, analytics and security through an advanced network operating stack. visit https://www.arista.com. Additional information and resources can be found at: www.arista.com www.twitter.com/aristanetworks www.facebook.com/AristaNW www.youtube.com/user/AristaNetworks
About the Role

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 For
Arista Networks is looking for Network Engineering Students to join our Internship Programme, helping us test the highest-quality networking products available.  You will work alongside a dedicated mentor in the Testing Team for the duration of your internship, helping us explore, find and fix bugs, while we help you build upon your existing academic knowledge and skills.You don’t need to tick every box to apply, if you’re excited about networking and willing to learn, we’d love to hear from you.

What You'll Do

  • Work with your mentor to design and test network topologies, validating functionality, performance, stability and scalability of Arista's features and products.
  • Write and execute test plans to verify all aspects of the feature and product, ensuring comprehensive coverage.
  • Identify defects and validate resolution.
  • Conduct test plan reviews to solicit feedback and identify customer-centric use cases.
  • Networking Fundamentals:  Strengthen your understanding of Network Design, Routing and Switching, IP Addressing
  • Networking Protocols: Gain hands-on industry experience with Layer 2 and Layer 3 protocols (TCP, UDP, IP, BGP, OSPF, STP…) and have exposure to Cloud Titans network design and cutting-edge technologies.
  • Network Automation:  Gain insight into how we use common scripting languages to automate various elements of our testing workflow and test at scale.
  • Testing Methodologies: Learn structured approaches to testing features and products across multiple areas, focussing on Functionality, Performance, Stability, Reliability, Scalability and Interoperability.
  • Troubleshooting Methodologies: Learn troubleshooting methodologies by actively diagnosing the issues you encounter.

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Qualifications

  • Pursuing a BS/MS/PhD in Computer Science/Electrical Engineering/Computer Engineering or related field
  • Understanding of core networking protocols (but mostly just a love and aptitude for network engineering).
  • Familiarity with scripting (e.g. Python)
  • Basic understanding of the Linux operating system.
  • Excellent problem-solving and analytical abilities.
  • Strong written and verbal communication skills, as well as collaboration skills.

Additional Information

  • The candidate must be able to complete a 6-month onsite internship working a full-time schedule.
  • Candidate must be eligible to work in the Republic of Ireland (no work VISA sponsored)

Key Skills
Network DesignRoutingSwitchingIP AddressingTCPUDPBGPOSPFSTPPythonLinuxNetwork AutomationTroubleshootingTesting MethodologiesAnalytical AbilitiesCommunication Skills
Categories
TechnologyEngineeringSoftware