Scale Engineer

Senior Engineer

Software EngineerL2Medium to Hard

This interview process is for a Senior Software Engineer (L2) position at Western Digital. It is designed to assess a candidate's technical expertise, problem-solving abilities, system design skills, and cultural fit within the company.

Rounds·3

Timeline·~14d

Experience·4 - 8 yrs

Comp band·US$120000 - US$160000

Interview time·150 min

Evaluation

What they measure.

  • Problem-solving skills
  • Algorithmic thinking
  • Data structure knowledge
  • Code quality and efficiency
  • Debugging skills

Preparation

How to prepare.

Tips

  1. Review fundamental data structures and algorithms (arrays, linked lists, trees, graphs, hash maps, sorting, searching).
  2. Practice coding problems on platforms like LeetCode, HackerRank, or AlgoExpert.
  3. Study system design principles and common patterns (caching, load balancing, databases, message queues).
  4. Prepare for behavioral questions by reflecting on past experiences using the STAR method (Situation, Task, Action, Result).
  5. Understand the company's products, values, and recent news.
  6. Brush up on your chosen programming language's nuances and standard libraries.
  7. Be ready to discuss your resume and past projects in detail.

Study plan

Fig · Study plan — 05 phases

01 / 05
01

Phase 01 of 05

Foundational Data Structures & Algorithms

Weeks 1-2: Data Structures & Basic Algorithms. Practice easy/medium LeetCode.

Weeks 1-2: Focus on core data structures (arrays, linked lists, stacks, queues, hash tables) and basic algorithms (sorting, searching). Practice easy to medium LeetCode problems related to these topics. Understand time and space complexity analysis.

Questions

Commonly asked.

  • Given an array of integers, find the contiguous subarray with the largest sum.
  • Design a system to store and retrieve user profiles for a social media platform.
  • Explain the difference between a process and a thread.
  • How would you handle a situation where a critical bug is found in production just before a major release?
  • Write a function to reverse a linked list.
  • Describe a time you disagreed with a teammate and how you resolved it.
  • What are the advantages of using microservices over a monolithic architecture?
  • How do you ensure data consistency in a distributed system?
  • Implement a function to find the k-th smallest element in an unsorted array.
  • Tell me about a project you are particularly proud of.

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

USA

Interview focus

System design and scalability are often emphasized more in US-based interviews.Deep dives into specific technologies relevant to the local team's projects.Cultural fit and collaboration skills are assessed through behavioral questions.

Common questions

  • How would you design a distributed caching system for a large-scale web application?
  • Describe a challenging technical problem you faced and how you solved it.
  • Explain the trade-offs between different database technologies (SQL vs. NoSQL).
  • How do you ensure code quality and maintainability in a team environment?
  • What are your thoughts on microservices architecture and its challenges?

Tips

  • For US locations, be prepared for more in-depth system design discussions.
  • Research the specific technologies used by the Western Digital team in that region.
  • Highlight your experience with agile methodologies and cross-functional collaboration.

Rounds

Round-by-round.

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

DSA

Coding questions at Western Digital.

Frequently reported on Western Digital loops

View all at Western Digital

Other guides

More at Western Digital.