I applied through a recruiter. I interviewed at Roblox (San Jose, CA) in Oct 2020
Interview
One round of phone screening with recruiter going through my resume and projects;
Another round of phone screening with hiring manager for more details of my background and introducing the team and position details
Long interview process over multiple rounds. Mix of technical interviews and personality/experience/product cases. Technical interviews included SQL and stats. After the onsite they have an executive round with 2 VP+
Interview questions [1]
Question 1
SQL case study covering intermediate-level aggregations, joins, etc.
Got an invitation of OA. After few weeks, got an invitation of VO. One week after the interview, got the email that I failed the interview. The interview was kind of hard.
Interview questions [1]
Question 1
What is CLT? How to avoid the network effect in A/B test? What is the advantage of random forest?
I applied in-person. The process took 2 months. I interviewed at Roblox in Jan 2025
Interview
First round was the hiring manager interview, followed by a technical interview (case study + SQL), then a virtual on-site consisting of product sense, stats, cross-functional, and a panel presentation. The final loop was leadership interviews which were 1-on-1's with Director to VP level interviewers.
Interview questions [1]
Question 1
What is the Central Limit Theorem and why do we care about it?