HackerRank Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 67 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at HackerRank.
HackerRank
Software Development Engineer
Entry Easy Neutral experience No offer 2 rounds
Interview process
Technical screen Technical screen
Interview formats
Coding Coding
The interview process had two main rounds. Round 1 was an online assessment on Hackerrank where I had to debug and fix bugs in two problems, and then create a feature with discount coupons, including writing logic and passing 4 test cases. An AI assistant bot was available. Round 2 involved debugging and building features within a given codebase, also with an AI assistant. However, their IDE was lagging and the 45 minutes allotted for the round felt insufficient.
Confirmed questions0 questions
No confirmed questions were included in this interview report.
HackerRank
Software Engineer Intern
Intern Easy Positive experience No offer 2 rounds
Interview process
Technical screen Technical screen
Interview formats
Technical
I had a really cool interview with HackerRank, super project-focused. First up was a technical round with the CTO & Co-founder, then another with the Director of Engineering. We mostly talked about my Projects, which was nice because I got to really go into detail about them, like for the first time ever in an interview. They seemed really into what I'd done. Just so you know, they're big on stuff outside of classes like hackathons and open-source. Didn't get the offer, but it was a great learning experience!
Confirmed questions3 questions
- Could you walk me through your projects?
- Tell me about the challenges you faced in your projects.
- Explain the rationale behind your technical choices for your projects.
HackerRank
Software Engineer
Mid Average Negative experience No offer 4 rounds
Interview process
Recruiter call Technical screen Onsite Background check Offer
Interview formats
System Design Technical Behavioral
The interview process was okay, but there were issues with last-minute rescheduling. My interview was rescheduled twice right before the original time, and I wasn't consulted on the new times. Then, halfway through the full-loop, my interviews were canceled without any notice or explanation. The HR person mentioned they were moving forward with other candidates, but only after the next day, which felt like a waste of my time. Overall, the people I interacted with were good, but the recruiter was very disorganized.
Confirmed questions1 question
- How would you architect a real-time chat application?
HackerRank Software Engineer Interview Questions
Quoted word for word from HackerRank interview reports.
“Could you convert an array of numbers into their Roman numeral equivalents?”
Read reports →“How would you solve a phone number problem using a hash map algorithm?”
Read reports →“What were the underlying implementations of 2 underscore methods?”
Read reports →“Given arrays for taxi pickup, drop-off, and tips, how would you calculate the maximum possible earnings?”
Read reports →“Can you implement a mock version of Google Sheets using ReactJS?”
Read report →“Can you list the different types of routers available in React?”
Read report →“Can you design a relational database schema for a movie ticket booking app or website?”
Read report →“How would you design an online multiplayer tic tac toe game?”
Read report →“Can you build a Ruby on Rails API and project?”
Read report →Formats, difficulty and experience
Across all 67 HackerRank interview reports.