I applied through a recruiter. The process took 5 weeks. I interviewed at Roblox (San Mateo, CA) in Feb 2019
Interview
Process took ~ 4-6 weeks from start to finish.
Initial technical screen with karat.io where they out sourced the technical phone screen to a third party. Standard coding questions on coderpad.
Then a second screen with hiring manager on phone - just some general discussion on experience.
Onsite is full day interview - 1 system design, 3 coding rounds (one of them is more OO), 1 round with manager and lunch with the team.
Got feedback from recruiter two days after letting me know that they'd move to the second round of onsite.
Second onsite consist of interview with CEO and VP and another round with the hiring manager.
Got an offer soon after.
The overall process was really good, the recruiter is super accommodating and helpful given my circumstances. The team is really fun to be with and everyone had really high energy.
I declined a few of my other offers and took the one with Roblox
Reach out by recruiter, set up phone screen interview. 60 min coding interview. A leetcode style question with 3 follow up , overall experience is good got reject 2 weeks afterward.
The phone screen was surprisingly technical and lasted about 45 minutes, diving straight into system design. I was asked to design a leaderboard service, which caught me off guard at first. But as I started to outline my approach, I realized it was similar to a challenge I’d practiced on prachub.com just days before. The subsequent technical rounds were intense, focusing on DSA problems and scalability issues. In the end, I got an offer that I happily accepted, despite the difficulties I faced throughout the process.
Interview questions [1]
Question 1
Design a leaderboard service that supports tens of millions of concurrent players. Cover top-K queries, neighbor-rank queries, partial sharding, and consistency tradeoffs.
Reached out by HR and chatted with a hiring manager. Mostly Behavioral questions such as why you want to work at roblox. The conversation was great and smooth. But they rejected me after a few days.
