Arista Networks interview process & guide 2026
Everything we know about interviewing at Arista Networks: the process stage by stage, what each round tests, compensation by level, and reports from candidates who interviewed.
- 1Recruiter screen or recruiter call
- 2Initial screening / phone screen
- 3Technical assessment and technical deep-dive
- 4Onsite in-person technical rounds
- 5Final interviews for team fit and culture
Interviewing at Arista Networks
Arista Networks runs a heavily technical interview loop. Across reported steps, you see recruiter screening, then live technical evaluations that mix coding, debugging, and systems thinking, with a final team fit and culture step.
What the interviews test is consistent with the topics they ask about: data structures and algorithms, Python, and low-level programming skills, plus system design focused on systems reliability and scalability. For roles that align, you also see topics like cloud computing and hybrid cloud, site reliability engineering, software-defined networking, ERP and ERP integration, Boomi (iPaaS), and optical transceivers.
Be prepared for a tight signal from your technical performance. The candidate reports show high difficulty overall, with 64.7% medium, 18.4% hard, and 1.2% very hard difficulty, and the aggregated offer rate reported is 0.5%, so you should assume you need strong execution across the technical rounds.
The interview topic mix includes multiple domain-specific areas beyond generic coding, including ERP and ERP integration plus cloud, SRE, and software-defined networking, so you should align your prep to both core fundamentals and the relevant domain topics for your target role.
How hard is the Arista Networks interview?
Aggregated from 640 interview experiencesAbout 1 in 3 candidates with a known outcome convert.
The interview process, end to end
5 rounds · based on 640 candidate reports- 1Recruiter screen or recruiter call
You start with a recruiter conversation to discuss your background, career goals, and alignment with the team needs. For at least one reported path, the recruiter screen is specifically described for the Solutions Architect role.
- 2Initial screening / phone screen
After recruiter steps, you undergo an initial screening to assess qualifications and fit. Reports also include a phone screen and, for at least one path, a technical phone screen that includes live coding focused on systems programming in C or writing an automation script in Python.
- 3Technical assessment and technical deep-dive
You move into technical evaluation. Reported technical deep-dive steps include in-depth sessions with members of the Business Applications Team, and candidate reports describe live coding and debugging sessions that can be fast-moving and multi-question.
- 4Onsite in-person technical rounds
You complete onsite-style interviews with multiple technical rounds, described as covering low-level coding, system design, automation infrastructure, and behavioral fit. Candidate reports mention C or systems-style questions, Linux command-line tool design, and algorithm and data structures interviews, along with role-aligned domain topics.
- 5Final interviews for team fit and culture
The loop ends with final interviews with team members to assess fit within the team and company culture. This step is explicitly reported as a culture and fit assessment rather than a technical deep evaluation.
What Arista Networks actually tests for
How prominent each skill is across reported loopsFind the guide for your role
This is your next step: open the guide for the role you are interviewing for. Each one carries the questions Arista Networks interviewers actually ask that position, the loop structure, and pay by level.
Real interview experiences
What candidates said about the loop, difficulty, and outcomes, straight from recent reports for these roles.
What Arista Networks pays, by level
Estimated total compensation: base salary plus stock and annual cash bonus.
What separates offers from rejections
Patterns from candidates who got offers, and the mistakes that most often sink a loop.
Do this
- Practice LeetCode-style data structures and algorithms plus debugging, because multiple candidate reports describe multi-question coding rounds and bug-finding under time constraints.
- Be ready to write Python during live sessions and demonstrate correct logic, since Python is the top interview topic by prominence (percentile 100) and some technical phone screens include live Python automation work.
- Prepare to discuss systems reliability and scalability, since system design and architecture questions are prominent (percentile 97) and you should be able to reason end-to-end, not just produce an answer.
- If your role touches infrastructure or networking, prep cloud, hybrid cloud, SRE, and software-defined networking concepts, because these show up at high prominence levels (cloud percentile 70, SRE 100, hybrid cloud 100, software-defined networking 64).
Avoid this
- Do not rely on HR or culture conversations alone. The process includes multiple technical rounds (onsite and technical deep-dive style steps are reported across roles), so you need to be strong after screening.
- Avoid treating the technical round as only “getting to a working solution.” Reports emphasize efficiency and progression, including pushing for more efficient approaches and reusing earlier work during a session.
- Do not ignore debugging and edge cases. Candidate reports include fixing multiple bugs and reasoning about language behavior and output, not just writing fresh code.
- Do not assume scheduling will be fast or proactive. One report describes unusually slow follow-through after an HR interaction and notes that updates were not proactive, so confirm timelines and follow up if you do not hear back.
Arista Networks interview FAQ
Answered from real candidate and workplace dataHow hard is the interview loop?
Across candidate reports, difficulty is 15.6% easy, 64.7% medium, 18.4% hard, and 1.2% very hard. The reports also describe technical rounds that can feel fast-moving and evaluate progression, so plan to handle both correctness and improving efficiency.
What should I prioritize for studying?
Prioritize data structures and algorithms and Python, both at percentile 100. Then focus on systems reliability and scalability (percentile 97) and the cloud and infrastructure topics that match your role, including hybrid cloud (percentile 100) and SRE (percentile 100). If targeting a role that aligns, also prepare ERP and ERP integration (ERP 100, ERP integration 97) and Boomi (95).
What does a typical interview day or sequence look like?
Reported steps include recruiter call or screen, phone screen, technical assessment, and onsite style rounds, plus a final team fit and culture interview. Candidate reports describe sequences that move quickly from coding into more technical or deeper sessions, with some variation by role.
How long does it take after interviews to hear back?
The supplied reports include mixed experiences. One report mentions a rejection after a long stretch, described as about three months, and another mentions a rejection shortly after the interview wrapped. The data does not provide a single consistent timeline.
Is it worth re-applying if I was rejected?
The sample reports show candidates attempting more than once and seeing different formats, including changes in difficulty and round structure. The data does not state a formal re-application policy, so you should focus on improving the areas highlighted above and be ready for a fresh evaluation.
What is the offer rate like based on reported data?
The aggregated offer rate reported from candidate reports is 0.5%. Positive sentiment is 57.9%, but you should treat the likelihood as low and aim to deliver consistently strong technical performance throughout the loop.
What people say about Arista Networks
Verbatim snippets from employee and candidate reviews“Stock performance has significantly improved, providing a strong financial incentive for employees.”
“Work-life balance is initially good, but it diminishes over time as you spend more time at the company.”
“The learning curve can be quite steep.”
“The internship program is well-structured, and the mentorship is highly supportive.”
“Arista Networks offers an excellent work-life balance in a friendly environment.”
“The company struggles with low base pay and inadequate immigration handling.”
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Ready for your Arista Networks interview?
Practice the exact questions from this guide with AI feedback, and walk into your loop knowing what to expect.