Arista Networks is seeking a highly skilled and motivated Software Engineer (Level 3H) to join our dynamic team. This role involves designing, developing, and maintaining cutting-edge networking solutions. The ideal candidate will have a strong foundation in computer science principles, excellent problem-solving abilities, and a passion for innovation.
Rounds·4
Timeline·~14d
Experience·4 - 7 yrs
Comp band·US$120000 - US$160000
Interview time·180 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 05 phases
01 / 05Phase 01 of 05
Weeks 1-2: Data Structures & Algorithms (DSA) fundamentals. Practice coding.
Weeks 1-2: Focus on core Data Structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and Algorithms (Sorting, Searching, Dynamic Programming, Graph Traversal). Practice implementing these in C++ or Python. Understand time and space complexity (Big O notation).
Phase 02 of 05
Weeks 3-4: Networking Protocols and Concepts. Understand packet flow.
Weeks 3-4: Deepen understanding of networking concepts. Cover TCP/IP stack, HTTP, DNS, routing protocols (BGP, OSPF), and Software-Defined Networking (SDN). Understand packet flow and common network troubleshooting techniques.
Phase 03 of 05
Weeks 5-6: System Design Principles. Practice designing distributed systems.
Weeks 5-6: Study system design principles. Learn about scalability, availability, reliability, and consistency. Explore common design patterns for distributed systems, microservices, caching, and databases. Practice designing systems for specific use cases.
Phase 04 of 05
Week 7: Behavioral Interview Preparation. Use STAR method.
Week 7: Prepare for behavioral interviews. Reflect on your past experiences and prepare examples using the STAR method for common questions related to teamwork, problem-solving, leadership, and handling challenges.
Phase 05 of 05
Week 8: Mock Interviews and Final Review. Research Arista.
Week 8: Mock interviews and final review. Conduct mock interviews with peers or mentors to simulate the interview environment. Review all topics, focusing on areas where you feel less confident. Research Arista Networks thoroughly.
Questions
Locations
Fig · Regions — 02 locations
01 / 02Location
Interview focus
Common questions
Tips
Location
Interview focus
Common questions
Tips
Rounds
Expand a step for evaluation criteria, sample questions, and prep notes.
Data Structures And Algorithms (DSA) · 45 min · Software Engineer / Senior Software Engineer
This round focuses on your fundamental computer science knowledge. You will be asked to solve coding problems that test your understanding of data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal). The interviewer will assess your ability to write efficient and correct code, analyze its time and space complexity, and articulate your thought process.
What they look for
Evaluation
Sample questions
Given an array of integers, return indices of the two numbers such that they add up to a specific target.
Reverse a linked list.
Find the kth smallest element in a binary search tree.
Implement a function to check if a binary tree is a valid Binary Search Tree.
Prep for this round
Common rejection reasons
System Design & Architecture · 60 min · Senior Software Engineer / Engineering Manager
This round assesses your ability to design and architect software systems. You'll be presented with a high-level problem (e.g., design a URL shortener, a Twitter feed, a distributed cache) and expected to propose a scalable, reliable, and efficient solution. The interviewer will probe your design choices, discuss trade-offs, and evaluate your understanding of distributed systems concepts.
What they look for
Evaluation
Sample questions
Design a system like Twitter's news feed.
Design a URL shortening service like bit.ly.
How would you design a distributed cache?
Design a system to count unique visitors to a website in real-time.
Prep for this round
Common rejection reasons
Behavioral Interview / Manager Round · 45 min · Hiring Manager / Senior Engineering Manager
This round is typically conducted by the hiring manager. It focuses on your behavioral aspects, past experiences, career goals, and overall fit with the team and Arista's culture. You'll be asked questions about your strengths, weaknesses, how you handle challenges, teamwork, and leadership. Be prepared to provide specific examples using the STAR method.
What they look for
Evaluation
Sample questions
Tell me about a time you had to deal with a difficult stakeholder.
Describe a project you are particularly proud of and your role in it.
How do you handle constructive criticism?
Where do you see yourself in 5 years?
Why are you interested in Arista Networks?
Prep for this round
Common rejection reasons
HR / Final Discussion · 30 min · HR / Recruiter
This is typically a final conversation with HR or a recruiter to discuss logistics, answer any remaining questions you might have, and confirm details like salary expectations and start date. It's also an opportunity for the company to ensure there are no red flags and that you are a good overall fit.
What they look for
Evaluation
Sample questions
Do you have any questions for me about the role, team, or Arista?
What are your salary expectations?
Are you comfortable with the start date?
Prep for this round
Common rejection reasons
DSA
Frequently reported on Arista Networks loops
Other guides
