Scale Engineer

Software Engineer

Software Engineer3HMedium to Hard

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

What they measure.

  • Technical proficiency in relevant programming languages (C++, Python).
  • Understanding of networking concepts and protocols.
  • Problem-solving and analytical skills.
  • System design and architecture capabilities.
  • Behavioral and cultural fit.
  • Communication skills.

Preparation

How to prepare.

Tips

  1. Review fundamental computer science concepts: Data Structures, Algorithms, Operating Systems, Networking.
  2. Deep dive into networking protocols: TCP/IP suite, BGP, OSPF, SDN concepts.
  3. Practice coding problems on platforms like LeetCode, HackerRank, focusing on medium to hard difficulty.
  4. Study system design principles and common architectural patterns.
  5. Prepare to discuss your past projects in detail, highlighting your contributions and challenges faced.
  6. Research Arista Networks' products, technologies, and company culture.
  7. Practice behavioral questions using the STAR method (Situation, Task, Action, Result).

Study plan

Fig · Study plan — 05 phases

01 / 05
01

Phase 01 of 05

Data Structures and Algorithms

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).

Questions

Commonly asked.

  • Describe a challenging technical problem you faced and how you solved it.
  • How would you design a system to handle millions of concurrent network connections?
  • Explain the difference between a process and a thread.
  • Write a function to find the kth smallest element in an unsorted array.
  • What are the trade-offs between using a relational database and a NoSQL database?
  • Tell me about a time you disagreed with a team member and how you resolved it.
  • How do you stay updated with the latest technologies in networking and software development?
  • Design a rate limiter for an API.
  • Explain the concept of idempotency.
  • What are your strengths and weaknesses as a software engineer?

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

Santa Clara, CA

Interview focus

Deep understanding of networking protocols (TCP/IP, BGP, OSPF).Proficiency in C/C++ or Python for systems programming.Experience with distributed systems and cloud technologies.Problem-solving and debugging skills in a networking context.Ability to work with large datasets and performance optimization.

Common questions

  • Discuss a complex networking problem you solved.
  • How would you design a scalable distributed system for network monitoring?
  • Explain the differences between TCP and UDP and when to use each.
  • Describe your experience with Python for network automation.
  • What are the challenges of working with large-scale data in networking?

Tips

  • Brush up on networking fundamentals and common protocols.
  • Prepare examples of challenging projects and how you overcame them.
  • Familiarize yourself with Arista's product portfolio and technologies.
  • Practice coding problems related to data structures, algorithms, and systems programming.
  • Be ready to discuss your experience with cloud platforms (AWS, Azure, GCP).

Rounds

Round-by-round.

Expand a step for evaluation criteria, sample questions, and prep notes.

DSA

Coding questions at Arista Networks.

Frequently reported on Arista Networks loops

View all at Arista Networks

Other guides

More at Arista Networks.