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 Red Hat 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?
Red Hat practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 4/10
Find Duplicate Words
Challenge
Difficulty 5/10
Stock Buy and Sell Optimization
Challenge
Difficulty 4/10
Product Except Self
Challenge
Difficulty 7/10
Maximum Sum of Absolute Difference of Values and Indices
Challenge
Difficulty 4/10
Max Per Level
Challenge
Difficulty 4/10
Implement a Graph
Real interview experiences
3 reports from candidates who interviewed at Red Hat.
What people at Red Hat say
Reviews originally posted on Glassdoor.
I've been able to pursue the work that seemed most important to me during my tenure at Red Hat, even to the extent that I was part of starting a new build service and then, later, starting a new team to help with it.
Good benefits, great company, but most of all fantastic coworkers. Now a part of IBM, but still fiercely independent. The feeling that comes with working for free software.
Excellent open culture, great to work on open source software. Has looked after its employees through the pandemic.
Wonderful workplace with great work life balance! Fun projects and transparent working nature encouraged throughout the company.
Culture, pay and workplace amenities are great. They are committed to the growth of their associates, and the company has a benevolent presence in its community.
Inside the workplace
About Red Hat
A day at Red Hat