This interview process is for a Software Engineer position at OKX, specifically at the P7.1 level. It is designed to assess a candidate's technical proficiency, problem-solving skills, system design capabilities, and cultural fit within the company.
Rounds·3
Timeline·~14d
Experience·7 - 10 yrs
Comp band·US$150000 - US$200000
Interview time·165 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 04 phases
01 / 04Phase 01 of 04
Weeks 1-2: Data Structures & Algorithms (DSA). Practice 5-7 problems daily.
Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, trees, graphs, hash tables, heaps, sorting, searching, dynamic programming, and greedy algorithms. Practice implementing these and analyzing their time and space complexity. Aim for 5-7 problems per day.
Phase 02 of 04
Weeks 3-4: System Design. Study core concepts and practice designing systems.
Weeks 3-4: Dive into System Design. Study concepts like load balancing, caching, database sharding, message queues, CAP theorem, microservices architecture, API design, and concurrency. Review common system design interview questions and practice designing systems.
Phase 03 of 04
Week 5: Behavioral Prep. Use STAR method for common questions.
Week 5: Behavioral and Behavioral Questions. Prepare stories using the STAR method for common behavioral questions related to teamwork, leadership, conflict resolution, and handling failure. Reflect on your career experiences and identify key achievements.
Phase 04 of 04
Week 6: Research OKX & Mock Interviews.
Week 6: Company Research and Mock Interviews. Research OKX's mission, values, products, and recent news. Conduct mock interviews (technical and behavioral) with peers or mentors to simulate the interview environment and get feedback.
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 Interview · 60 min · Senior Software Engineer or Tech Lead
This round focuses on your fundamental computer science knowledge, particularly data structures and algorithms. You will be asked to solve coding problems, often involving algorithmic challenges. The interviewer will assess your ability to analyze problems, devise efficient solutions, write clean and maintainable code, and explain your reasoning clearly. Expect questions that test your understanding of time and space complexity.
What they look for
Evaluation
Sample questions
Given an array of integers, find the contiguous subarray with the largest sum.
Implement a function to reverse a linked list.
Find the k-th smallest element in a binary search tree.
Given a string, find the length of the longest substring without repeating characters.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Staff Engineer or Architect
This round evaluates your ability to design and architect complex systems. You will be presented with a high-level problem (e.g., design a social media feed, a ride-sharing service, or a distributed cache) and expected to propose a scalable, reliable, and maintainable solution. Focus on identifying core components, data models, APIs, and addressing potential bottlenecks and failure points.
What they look for
Evaluation
Sample questions
Design a system like Twitter's news feed.
Design a distributed key-value store.
How would you design a rate limiter for an API?
Design a system to process and store real-time analytics data.
Prep for this round
Common rejection reasons
Behavioral Interview · 45 min · Hiring Manager or Senior Team Member
This round focuses on your behavioral aspects, past experiences, and how you fit into the team and company culture. You'll be asked questions about your strengths, weaknesses, how you handle specific situations (e.g., conflict, failure, success), and your career aspirations. Use the STAR method (Situation, Task, Action, Result) to provide structured and impactful 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 team member. How did you handle it?
What are your strengths and weaknesses?
Why are you interested in working at OKX?
Describe a time you took initiative to improve a process or product.
Prep for this round
Common rejection reasons
DSA
Frequently reported on OKX loops
Other guides
