Unit21 logo

Unit21 Software 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

3.3 Rounds average
Average Typical difficulty
28.6% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Unit21.

Showing 3 of 7
Unit21 logo
Unit21

Senior Software Engineer

Engineering · a year ago

Senior Average Neutral experience No offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen
Interview formats
Technical Coding System Design Behavioral

The initial HR screen and hiring manager call were quick and had a good vibe. The pay range isn't close to big tech, but their technical interviews are on par with them. Honestly, I don't think it's worth the effort.

Confirmed questions2 questions
  • Standard Leetcode-style coding challenges
  • System design scenarios
Unit21 logo
Unit21

Software Engineer

Engineering · a year ago

Entry Average Negative experience No offer 3 rounds
Interview process
Recruiter call Technical screen Background check Offer
Interview formats
Technical Coding Behavioral

So I got this interview request from a company, and the whole thing was super unprofessional, honestly, good riddance. They called me for a first phone screen, but the person on the line seemed really distracted, almost annoyed. They were clearly irritated when I asked them questions at the end. Then, they explained the technical interview would involve real-world problems related to projects I'd be working on, which I thought was a good sign. But then, the technical interview was just a bunch of LeetCode problems. I wasn't ready for that because I was studying the actual technologies they mentioned. I bombed it. After that, I heard nothing for weeks. A whole month passed. I tried reaching out multiple times, and finally, I got a generic rejection email two months after the technical interview. Seriously, avoid this place, they don't respect candidates at all.

Confirmed questions2 questions
  • Do you know LeetCode easy and medium questions?
  • Can you answer some API related questions?
Unit21 logo
Unit21

Software Engineer

Engineering · more than a year ago

Mid Average Positive experience Decline offer 5 rounds
Interview process
Recruiter call Technical screen Technical screen Onsite Onsite
Interview formats
Coding Technical Technical Behavioral Behavioral

Unit 21 reached out via angel.co. There were 5 rounds total. First, a technical screen. Then, a Front End interview. After that, a Design and SQL interview. Next, a Manager interview. Lastly, a chat with the CTO.

Confirmed questions2 questions
  • Write code in type-script for fetching data from some api, populating them into a webpage, and follow-ups with pagination and search filter.
  • Questions were related to JOINs and how to optimize SQL queries and different ways to query data.

Unit21 Software Engineer Interview Questions

Quoted word for word from Unit21 interview reports.

Given a string of bunched words/acronyms, add spaces between words. For example, 'helloWorld' should become 'Hello World', and 'HelloNASAWorld' should become 'Hello NASA World'.

Read reports

Given a string, can you convert it to the proper cases? For example, "helloWorld" should become "Hello world", and "my VIN Number" should become "My VIN number".

Read reports

Write code in type-script for fetching data from some api, populating them into a webpage, and follow-ups with pagination and search filter.

Read reports

Formats, difficulty and experience

Across all 7 Unit21 interview reports.

Interview formats

Coding 34.8%
Technical 30.4%
Behavioral 21.7%
System Design 13%

Interview difficulty

Easy 14.3%
Average 85.7%
Difficult 0%

Candidate experience

Neutral 28.6%
Negative 42.9%
Positive 28.6%