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 GitLab 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
3 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?
GitLab practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 5/10
How Out of Order
Challenge
Difficulty 7/10
Climbing the Word Ladder
Challenge
Difficulty 5/10
Merge Two Binary Trees
Challenge
Difficulty 2/10
Array Intersection
Challenge
Difficulty 4/10
Sum All Primes
Challenge
Difficulty 5/10
Is A Subsequence
Real interview experiences
3 reports from candidates who interviewed at GitLab.
What people at GitLab say
Reviews originally posted on Glassdoor.
For most companies, values are just buzz words with very little meaning or relevance. This is not true at GitLab. The pros of working at GitLab almost all tie directly back to the values that GitLab takes very seriously
They really do live the culture and, by any large, everyone really is in it together. None of the backstabbing or ladder climbing I've seen elsewhere. Company values are an adjustment, but work out well once you decide to embrace them. It would be tough to work for another company that didn't embrace a similar ground-up approach and a similar degree of transparency.
I joined GitLab recently and I am very impressed by this organization. Processes are very clear and documented and there is always a desire to improve.
Everyone has been friendly and welcoming. It's nice to be at a fully remote company with so much transparency and good core values.
Fantastic company to work at, for so many reasons. Company values are well-articulated and are reflected in the actual culture.
Inside the workplace
About GitLab
A day at GitLab