FINN Backend Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 7 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at FINN.
FINN
Backend Engineer
Mid Average Positive experience No offer 3 rounds
Interview process
Recruiter call Take home Technical screen
Interview formats
Behavioral Technical
I had a chat with the recruiter first. Then I got a technical challenge to complete within 7 days. After that, there was a technical interview. I'm not sure what's next because my process ended there, but the recruiter mentioned a cultural match interview should happen after the technical one.
Confirmed questions3 questions
- Can you share details about a project that you are proud of?
- What's an example of good feedback you've received?
- Describe a challenging experience you had.
FINN
Backend Engineer
Lead Average Neutral experience No offer 5 rounds
Interview process
Technical screen Take home Technical screen Technical screen Technical screen
Interview formats
Technical Coding System Design Behavioral
I applied online and the whole thing took about 7 weeks from late August to mid-October. There were 5 interview rounds. First, a technical screening with a C level exec. Then, a take-home assignment that should take about 5-10 hours, though it's up to you how much effort you put in (like getting 100% unit test coverage), but it doesn't guarantee anything, not even a Senior Backend role. After that, I had a tech interview with a VP of Engineering, followed by an interview with another C level exec. The last interview was with a Tech Lead, but it was for a different position.
Confirmed questions4 questions
- Some JS questions
- Can you explain the mathematical basis of Monads?
- Questions about system design
FINN
Backend Engineer
Senior Average Neutral experience No offer 3 rounds
Interview process
Recruiter call Take home Technical screen
Interview formats
Behavioral Coding Presentation
I applied online on FINN's website. I was contacted quickly and had a chat with the VP of engineering, who was super friendly. After that, I got a take-home coding challenge with a week to finish it. The challenge was fitting for the role. I didn't really like that I had to send a video explaining my code, and the tool they used was clunky. Everything was going well until I got rejected. The feedback wasn't great - it said my code wasn't runnable (it was), that instructions were missing (they weren't), and disagreed with some of my implementation choices. I responded to each point with explanations, but they never replied. This lack of communication really soured my view of the company, even though it seemed like a good place. I would have preferred a quick call to discuss the implementation instead of the video. Not hearing back after putting in the effort is a red flag.
Confirmed questions2 questions
- Can you talk about your previous work experiences?
- What are some notable achievements you're proud of in your engineering career?
FINN Backend Engineer Interview Questions
Quoted word for word from FINN interview reports.
“Can you explain the mathematical basis of Monads?”
Read reports →“Could you explain what a database transaction is?”
Read reports →“Can you explain what a Promise is in JavaScript?”
Read reports →“Can you tell me why you're interested in Finn?”
Read reports →“What's a weakness you have?”
Read report →“What's an example of good feedback you've received?”
Read report →“Can you share an instance where you received constructive feedback and discuss what you learned from it?”
Read report →“What are some notable achievements you're proud of in your engineering career?”
Read report →“Could you explain your motivation for wanting to join this company?”
Read report →Formats, difficulty and experience
Across all 7 FINN interview reports.