Mercari's MG6 Software Engineer interview process is designed to assess a candidate's technical expertise, problem-solving abilities, system design skills, and cultural fit. The process is rigorous and aims to identify individuals who can contribute significantly to Mercari's engineering challenges and uphold its values.
Rounds·4
Timeline·~14d
Experience·5 - 10 yrs
Comp band·US$140000 - US$180000
Interview time·225 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 04 phases
01 / 04Phase 01 of 04
Weeks 1-2: DSA Fundamentals (LeetCode Medium)
Weeks 1-2: Focus on core data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal). Practice coding problems on platforms like LeetCode, aiming for medium difficulty.
Phase 02 of 04
Weeks 3-4: System Design Principles
Weeks 3-4: Dive into system design principles. Study topics like load balancing, caching, databases (SQL vs. NoSQL), message queues, and microservices architecture. Work through common system design interview questions.
Phase 03 of 04
Week 5: Behavioral Interview Prep (STAR Method)
Week 5: Prepare for behavioral questions. Reflect on your past experiences and how they align with Mercari's values. Practice articulating your accomplishments using the STAR method.
Phase 04 of 04
Week 6: Company Research & Mock Interviews
Week 6: Research Mercari's technology stack, recent news, and engineering challenges. Review your resume and prepare to discuss your projects in depth. Consider mock interviews to simulate the actual interview experience.
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.
Technical Interview (Coding) · 60 min · Software Engineer (Mid-level)
This round focuses on your core programming skills. You will be given one or two coding problems, typically involving data structures and algorithms. The interviewer will assess your ability to understand the problem, devise an efficient solution, write clean code, and explain your thought process. Expect follow-up questions to test your understanding of edge cases and complexity.
What they look for
Evaluation
Sample questions
Given a binary tree, find the lowest common ancestor of two given nodes in the tree.
Implement a function to find the k-th largest element in an unsorted array.
Design and implement a data structure that supports all common operations (insert, delete, search, getRandom) in O(1) average time.
Prep for this round
Common rejection reasons
System Design Interview · 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 Twitter's feed, design a URL shortener) and expected to propose a solution. The interviewer will probe your design choices, focusing on scalability, reliability, performance, and maintainability. Be prepared to discuss various components, data models, APIs, and potential bottlenecks.
What they look for
Evaluation
Sample questions
Design a system like Instagram.
Design a rate limiter.
Design a distributed cache.
Prep for this round
Common rejection reasons
Behavioral Interview · 45 min · Hiring Manager / Senior Team Member
This round focuses on your behavioral and cultural fit. You'll be asked questions about your past experiences, how you handle challenges, work with others, and your motivations. The goal is to understand how you operate within a team and if your values align with Mercari's. Use the STAR method to provide structured and specific answers.
What they look for
Evaluation
Sample questions
Tell me about a time you had to work with a difficult colleague. How did you handle it?
Describe a situation where you failed. What did you learn from it?
Why are you interested in Mercari and this specific role?
Prep for this round
Common rejection reasons
Technical Leadership / Executive Interview · 60 min · Director of Engineering / VP of Engineering
This final round, often with a senior leader, focuses on your technical leadership, strategic thinking, and overall impact. You'll discuss your experience in leading projects, mentoring engineers, and influencing technical direction. The interviewer wants to understand your potential to contribute at a higher level within the organization and how you align with Mercari's long-term vision.
What they look for
Evaluation
Sample questions
Describe a time you had to influence a team or organization to adopt a new technology or process. What was the outcome?
How do you approach mentoring junior engineers and fostering their growth?
What are your thoughts on the future of e-commerce technology, and how can Mercari stay ahead?
Prep for this round
Common rejection reasons
DSA
Frequently reported on Mercari loops
Other guides
