This interview process is for a Software Engineer position at OKX, specifically at the P6.2 level. It is designed to assess a candidate's technical proficiency, problem-solving skills, system design capabilities, and cultural fit within the company.
Rounds·4
Timeline·~14d
Experience·5 - 8 yrs
Comp band·US$140000 - US$180000
Interview time·210 min
Evaluation
Preparation
Tips
Study plan
Fig · Study plan — 04 phases
01 / 04Phase 01 of 04
Weeks 1-2: Data Structures & Algorithms (LeetCode Medium/Hard).
Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, trees, graphs, hash tables, heaps, and sorting/searching algorithms. Practice implementing these and analyzing their time/space complexity. Aim for 5-7 LeetCode problems per week.
Phase 02 of 04
Weeks 3-4: System Design Fundamentals & Practice.
Weeks 3-4: Dive into System Design. Study concepts like scalability, availability, consistency, load balancing, caching, databases (SQL vs. NoSQL), message queues, and microservices architecture. Review common system design interview questions and practice designing systems like Twitter feed, URL shortener, or a distributed cache.
Phase 03 of 04
Week 5: Behavioral Questions (STAR Method).
Week 5: Behavioral and Situational Questions. Prepare examples using the STAR method for common questions related to teamwork, leadership, conflict resolution, and handling failure. Reflect on your past projects and identify key achievements and challenges.
Phase 04 of 04
Week 6: OKX Research & Industry Trends.
Week 6: Company Research and Industry Knowledge. Understand OKX's business model, products, and recent news. Familiarize yourself with current trends in the blockchain and cryptocurrency space. Prepare questions to ask the interviewer about the company and the role.
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 · Senior Software Engineer / Tech Lead
This round focuses on your core 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 understand the problem, devise an efficient solution, write clean code, and explain your reasoning. Expect questions that test your knowledge of arrays, strings, linked lists, trees, graphs, dynamic programming, and sorting/searching algorithms.
What they look for
Evaluation
Sample questions
Given an array of integers, find the contiguous subarray with the largest sum.
Implement a function to find the k-th smallest element in a binary search tree.
Design and implement a data structure that supports insertion, deletion, and getRandom O(1) time complexity.
Prep for this round
Common rejection reasons
System Design Interview · 60 min · Senior Software Engineer / Architect
This round evaluates your ability to design and architect complex software systems. You will be presented with a high-level problem (e.g., design a URL shortener, a social media feed, or a distributed cache) and asked to propose a solution. The interviewer will probe your understanding of scalability, reliability, data storage, APIs, and trade-offs. Be prepared to discuss different components, their interactions, and potential bottlenecks.
What they look for
Evaluation
Sample questions
Design a system like Twitter's news feed.
Design a rate limiter for an API.
Design a distributed key-value store.
Prep for this round
Common rejection reasons
Behavioral Interview · 45 min · Hiring Manager / HR
This round focuses on your behavioral and situational responses. The interviewer will ask questions about your past experiences, focusing on how you've handled specific situations, worked in teams, overcome challenges, and demonstrated leadership. Use the STAR method (Situation, Task, Action, Result) to structure your answers effectively. This is also an opportunity to assess cultural fit and your motivation for joining OKX.
What they look for
Evaluation
Sample questions
Tell me about a time you faced a significant technical challenge and how you overcame it.
Describe a situation where you had a conflict with a team member. How did you resolve it?
Tell me about a project you are particularly proud of and your role in it.
How do you handle tight deadlines and pressure?
Prep for this round
Common rejection reasons
Managerial Interview · 45 min · Engineering Manager
This final round is typically with the hiring manager. It's a chance to discuss your career goals, understand the team's objectives, and ensure a good mutual fit. The manager will assess your overall suitability for the role, your potential to grow within the team, and your alignment with the team's working style. Be prepared to discuss your motivations, career aspirations, and how you see yourself contributing to OKX.
What they look for
Evaluation
Sample questions
What are your long-term career goals?
How do you prefer to receive feedback?
What interests you most about this role and OKX?
How would you approach learning a new technology stack for a project?
Prep for this round
Common rejection reasons
DSA
Frequently reported on OKX loops
Other guides
