10 questions · from 3 interviews
Wise interview questions
Every question candidates reported from their Wise interviews, most frequently asked first. Each links to the write-up it came from, so you can see the round and how it went.
Wise coding and DSA questions
- 01
NxN Tic-Tac-Toe Win Condition
Implement the win condition logic for an NxN Tic-Tac-Toe game where a player wins if they have 'wincount' consecutive 'O's or 'X's in a row, column, or diagonal.
Easy · From Wise | SSE | London | Nov 2025 | Rejected
Wise system design questions
- 01
Microservices failure prevention
If you are working in an environment with multiple microservices and a failure occurs, how would you prevent or mitigate it?
- 02
Circuit Breaker System Design
Design and implement a circuit breaker pattern for a system with multiple microservices. The implementation should handle thread safety, HTTP status codes, and Java concurrency constructs effectively.
Hard · From Wise | Staff Engineer | Hyderbad | Rejected
- 03
Shares Selling Event Processing
Design a system to process share selling events. Details about the nature of events or constraints were part of the discussion but not clearly outlined due to communication issues during the interview.
- 04
Design Wise Crowdfunding System
Design a system for Wise's crowdfunding event to sell 10,000,000 shares (each worth £10) to its customers, aiming to raise £100 million. Key requirements: Customers can buy shares using funds from their Wise account via the app/website. The "Balance Service"…
Wise other questions
- 01
Process vs Thread Difference
Explain the fundamental differences between a process and a thread.
- 02
Use Cases for Process vs Thread
Describe scenarios where you would prefer to use a process over a thread, and vice-versa.
- 03
Optimistic vs Pessimistic Locking
Explain the differences between optimistic and pessimistic locking mechanisms.
- 04
Preventing Double Charges in Payment APIs
Discuss strategies and techniques to prevent duplicate charges in payment API integrations.
- 05
Deadlock Definition
Define what a deadlock is in concurrent systems.
Wise interview questions FAQ
What questions are asked in Wise interviews?
Candidates reported 10 distinct questions across 3 Wise interviews. 1 coding and DSA questions, 4 system design questions, 5 other questions.