Flow Traders Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 27 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Flow Traders.
Flow Traders
Software Engineer
Entry Average Positive experience No offer 4 rounds
Interview process
Technical screen Recruiter call Onsite Take home
Interview formats
Technical Coding Behavioral
The process started with a Hackerrank test, then a brief HR interview for about 15 minutes. After that, there was a virtual Super Day which included both a behavioral and a technical interview. The technical part covered general CS topics like C++ specifics, networking, memory, and CPU caches. Finally, there was a take-home assignment, which I didn't pass.
Confirmed questions1 question
- What would you like me to ask you?
Flow Traders
Senior Software Engineer
Senior Average Neutral experience No offer 6 rounds
Interview process
Recruiter call Phone screen Take home Technical screen Onsite Onsite
Interview formats
Behavioral Technical Coding
Had an internal recruiter video conf for about 0.5h and then a 1h hiring manager video conf. After that, there was a 10-15 hour home assignment which was pretty tricky and took me more than the 4 hours they suggested. Then, a 1.5h technical interview via video conf where they asked thoughtful questions about fundamental C++ concepts, which were actually easy to guess. Finally, a 2-hour on-site with 2 engineers and a 1.5-hour on-site with 2 managers.
Confirmed questions6 questions
- Can you explain RAII?
- What is CRTP?
- Could you describe ADL (Argument-Dependent Lookup)?
Flow Traders
Software Engineer
Mid Difficult Negative experience No offer 3 rounds
Interview process
Take home Recruiter call Technical screen
Interview formats
Coding Behavioral
First, there was an online assessment, then a behavioral interview with HR, and finally a technical interview that I didn't pass. The interviewers weren't very friendly and didn't seem interested in my background, focusing only on solving the LeetCode problem.
Confirmed questions1 question
- Can you solve a medium LeetCode problem?
Flow Traders Software Engineer Interview Questions
Quoted word for word from Flow Traders interview reports.
“What are r-values and l-values in C++?”
Read reports →“How can latency be optimized using std::move?”
Read reports →“Regarding mutexes, what is the underlying mechanism?”
Read reports →“Could you explain the distinction between boost::mutex and CriticalSection?”
Read reports →“What are atomics and how do they work?”
Read report →“Can you explain the difference between references and pointers?”
Read report →“Can you detail the CPU costs of different C++ programming commands?”
Read report →“How would you implement a stack with a max element function?”
Read report →“What is your understanding of Std atomic usage?”
Read report →Formats, difficulty and experience
Across all 27 Flow Traders interview reports.