Coding fluency
Implement an LRU cache. Explain your data structures, test capacity one, and walk through an eviction.
What a strong answer demonstrates
Correctness, edge cases, and time / space complexity.
Prepare for Roblox with a focused mix of coding, design, and communication. Start with your job description and confirm the interview loop with your recruiter.
6 Practice picks
2 Interview reports
5 Levels mapped
01 / MAKE YOUR NEXT SESSION COUNT
Your preparation, made concrete.
System design
Design a notification service. Clarify delivery guarantees, model the data, then handle retries and duplicate events.
What a strong answer demonstrates
Clear requirements, a working baseline, and explicit trade-offs.
Behavioral storytelling
Describe a technical decision you changed after receiving feedback. Explain your contribution and the outcome.
What a strong answer demonstrates
Specific actions, honest reflection, and measurable impact.
BEFORE YOU PRACTICE
Ask your recruiter.
Get the details that a generic company guide cannot know.
- Which team and level is this opening for, and what does success look like?
- What rounds, durations, and evaluation criteria should I prepare for?
- Which languages, tools, and AI assistance are permitted?
- Will design focus on frontend, backend, infrastructure, or another specialty?
- Are there accommodations or preparation materials I should request?
Roblox practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 5/10
Stock Buy and Sell Optimization
Challenge
Difficulty 7/10
Maximum Sum of Absolute Difference of Values and Indices
Challenge
Difficulty 5/10
Split Set to Equal Subsets
Challenge
Difficulty 6/10
Implement a Stack With Minimum
Challenge
Difficulty 4/10
Mean Per Level
Challenge
Difficulty 7/10
Pick A Sign
Real interview experiences
2 reports from candidates who interviewed at Roblox.
What people at Roblox say
Reviews originally posted on Glassdoor.
very interesting engineering problems to solve. It doesn’t feel like you’ll be fixing some small button on a web site.
Corporate culture of cultivating the strengths of every employee, putting the employee's growth ahead of company growth
Little giant tech company. Standard process and quality management. Easy to navigate.
Great team, collaborative. Fun to work with. Everyone in the company is willing to put in the hours and hard work to get project to the finish line. It's a very bottom up company - you have the freedom to bring your ideas to the table!
It's amazing to be a part of a company that is building the future. They care about innovation, are very focused on the long view (not taking short cuts), the CEO and founder is a visionary and thinks 5-25 years out. And the company is almost 80% eng and product so they practice what they preach. They also are 100% focused on building a safe platform which is important for our users.
Inside the workplace
About Roblox
A day at Roblox