Mercor Interview Experiences & Questions
3 real Mercor interviews shared by candidates: every round, the questions they were asked, how they answered, and whether they got the offer. Latest: Aug 2026.
What to expect at Mercor
Based on 3 real interviews
Roles
Software Engineer (2), Data Scientist (1)
The Mercor interview process
Most common round types: Technical (1).
Real Mercor interview questions
- Design an RL environment.
- What's the most inefficent way to sort an array of n numbers?
- Given a hypothetical situation of unclean tables and how to join two messy tables without duplicate values
- Gave a piece of code to review, explained about correctness, stylistic comments and adding retries, timeouts.
- Basics on joins
- How would you increase growth to Mercor's user base?
All 3 Mercor interview experiences
“The process was smooth, the interviewer was not that responsive through out but I got invited to onsite in an hour”
“The process was confusing and leaned more towards DSA than I was expecting. It was basically trying to figure out a deduplication using hashsets.”
“The process was rigorous. Be prepared to explain your projects in depth during the screenings and behaviorals. Be able to answer why you made X decision over Y. For the on-site, it will be in-person…”
Frequently asked questions
How many rounds are in the Mercor interview?
Candidates report a typical 1 rounds, usually including a recruiter screen, phone screen, technical round, final / onsite round.
How hard is the Mercor interview?
Candidates rate it 3.3/5 on average (medium), across 3 interviews.
How long does the Mercor hiring process take?
About 2 weeks from first contact to decision, based on reported timelines.
What percentage of Mercor candidates get an offer?
0% of candidates with a final result got an offer (0 of 2).
What does the Mercor interview focus on?
The most common round types are Technical.