This interview process is for a Software Engineer II (L4) position at Bolt, focusing on assessing technical skills, problem-solving abilities, and cultural fit.
Rounds·3
Timeline·~14d
Experience·3 - 7 yrs
Comp band·US$120000 - US$160000
Interview time·150 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 04 phases
01 / 04Phase 01 of 04
Weeks 1-2: Data Structures & Algorithms fundamentals. Practice 2-3 problems daily.
Weeks 1-2: Focus on core data structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and algorithms (Sorting, Searching, Dynamic Programming, Greedy Algorithms). Practice implementing these in your preferred language. Aim for 2-3 coding problems per day.
Phase 02 of 04
Weeks 3-4: System Design principles. Study scalability, databases, caching, etc.
Weeks 3-4: Dive into system design concepts. Study topics like scalability, availability, reliability, databases (SQL vs. NoSQL), caching, load balancing, and message queues. Work through common system design interview questions.
Phase 03 of 04
Week 5: Behavioral questions preparation. Use STAR method for examples.
Week 5: Prepare for behavioral questions. Reflect on your past projects and experiences, identifying examples that demonstrate leadership, teamwork, problem-solving, and handling of difficult situations. Practice articulating these using the STAR method.
Phase 04 of 04
Week 6: Company research and question preparation.
Week 6: Review Bolt's tech stack and products. Understand the company's mission and values. Prepare thoughtful questions to ask the interviewers.
Questions
Locations
Fig · Regions — 03 locations
01 / 03Location
Interview focus
Common questions
Tips
Location
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) · 45 min · Software Engineer (L3/L4)
This round focuses on your fundamental programming skills. You will be asked to solve 1-2 coding problems, typically involving data structures and algorithms. The interviewer will assess your ability to write clean, efficient, and correct code, as well as your approach to problem-solving and debugging.
What they look for
Evaluation
Sample questions
Given a binary tree, find its maximum depth.
Implement a function to reverse a linked list.
Find the kth smallest element in a sorted matrix.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Software Engineer (L5/L6) or Engineering Manager
This round evaluates your ability to design and architect software systems. You'll be presented with an open-ended problem (e.g., design a URL shortener, a social media feed, or a notification system) and expected to propose a scalable and robust solution. Focus on identifying requirements, defining APIs, choosing appropriate data stores, and discussing trade-offs.
What they look for
Evaluation
Sample questions
Design a system like Twitter's timeline.
Design an API rate limiter.
How would you design a distributed key-value store?
Prep for this round
Common rejection reasons
Behavioral Interview · 45 min · Hiring Manager or Senior Team Member
This round focuses on your past experiences and how you handle various work situations. You'll be asked behavioral questions designed to assess your soft skills, teamwork, problem-solving approach, and cultural fit with Bolt. Use the STAR method (Situation, Task, Action, Result) to structure your answers.
What they look for
Evaluation
Sample questions
Tell me about a time you failed. What did you learn from it?
Describe a situation where you had to work with a difficult colleague.
How do you prioritize your work when you have multiple competing deadlines?
Prep for this round
Common rejection reasons
DSA
Frequently reported on Bolt loops
Other guides
