Type · algorithm
Given a list of trade execution timestamps, find the maximum number of overlapping trades occurring at any given time.
Enterprise · Software Engineer Interview Guide
Sign up to see ATSHeadquartered in NetherlandsInterview language: English
How to Pass the DEGIRO Software Engineer Interview in 2026
The DEGIRO DNA (TL;DR)
DEGIRO's Pan European trading infrastructure requires engineers to design for high-throughput order routing. The loop grades your ability to maintain their 'Best Broker' status by balancing low-latency execution with strict regulatory compliance across multiple jurisdictions.
Interviews inJava
The DEGIRO Interview Loop
Your onsite loop will typically consist of 4 rounds.
- 1
Round 1
Recruiter ScreenMotivation, role fit, logistics. - 2
Round 2
Coding ScreenLeetCode-medium algorithmic problems under time pressure. - 3
Round 3
System DesignDistributed systems, trade-offs at scale, architecture under constraints. - 4
Round 4
Onsite CodingLeetCode-hard, debugging, code clarity, edge cases. - 5
Round 5
Behavioral / LeadershipPast evidence of ownership, influence, resolving conflict.
The Danger Zone: Top Reasons Candidates Fail
Based on our database of DEGIRO interview outcomes, avoid these common traps:
- Using O(n^2) brute force
- Sorting the window every time a new price arrives
- Failing to mention specific interest in high-frequency trading or market infrastructure
- Adding a global lock that kills performance
Test Yourself: Real DEGIRO Questions
Three real prompts pulled from our database.
Type · architecture
How would you design a real-time price feed system that pushes updates to millions of connected mobile clients?
Type · conflict
Tell me about a time you disagreed with a senior engineer on an architectural decision. How did you resolve it?
+ many more questions, signals, and worked examples
Sign up to unlock the full DEGIRO grading rubric
DEGIRO Interview Question Bank
A sample from our database, grouped by round. Sign up to see the full set.
9 of 12 questions shown
1
Recruiter Screen
1- 1
Type · motivation
Why do you want to work on low-latency trading platforms at DEGIRO compared to other fintech companies?
2
Coding Screen
3- 2
Type · algorithm
Given a list of trade execution timestamps, find the maximum number of overlapping trades occurring at any given time. - 3
Type · algorithm
Implement a function to validate if a series of stock ticker symbols are correctly nested within a portfolio structure (e.g., using parentheses). - + 1 more questions in this round (sign up to unlock)
3
System Design
3- 4
Type · architecture
Design a distributed order matching engine that can handle thousands of orders per second with low latency. - 5
Type · architecture
How would you design a real-time price feed system that pushes updates to millions of connected mobile clients? - + 1 more questions in this round (sign up to unlock)
4
Onsite Coding
3- 6
Type · algorithm
Given a stream of trade prices, implement a sliding window median calculator that performs efficiently under heavy load. - 7
Type · debugging
You are given a snippet of code that causes a race condition in order cancellation. Identify the bug and provide a thread-safe fix. - + 1 more questions in this round (sign up to unlock)
5
Behavioral / Leadership
2- 8
Type · leadership
Describe a time you had to make a technical trade-off between speed of delivery and system robustness. - 9
Type · conflict
Tell me about a time you disagreed with a senior engineer on an architectural decision. How did you resolve it?
Unlock all 12 DEGIRO questions, free
No credit card. Every question with its framework, the grading signals interviewers score against, and a worked answer for each.
Interview tracks at DEGIRO
How DEGIRO's DNA translates across functions. Pick your role.
Compare DEGIRO with similar employers
Same DNA, different bar. Browse the closest companies in our database and see how their loops differ.
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Practice DEGIRO interviews end-to-end
DEGIRO Mock Interview
Run a live mock interview with our AI interviewer using DEGIRO-style prompts. Get scored on structure, signal, and answer length - exactly how the real loop grades you.
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STAR Stories for DEGIRO Behavioral Rounds
Build a Story Bank of your past wins, mapped to the leadership signals DEGIRO interviewers grade on. Reuse them across every behavioral round.
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DEGIRO Interview Prep Hub
The frameworks behind every DEGIRO round: CIRCLES for product sense, hypothesis-driven debugging for analytical, STAR for behavioral. Learn each one in 10 minutes.
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Interview Frameworks
CIRCLES, STAR, AARRR, RICE, MECE. The exact frameworks that make DEGIRO interviewers nod instead of frown. Step-by-step playbooks with the moves and the pitfalls.
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Sample answers
What a strong answer to these DEGIRO interview questions shows.
Given a list of trade execution timestamps, find the maximum number of overlapping trades occurring at any given time.
A strong answer shows: Efficiency; Handling time-series data.
How would you design a real-time price feed system that pushes updates to millions of connected mobile clients?
A strong answer shows: Network protocols; Real-time systems.
Frequently asked questions
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