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 Gusto 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?
Gusto practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 4/10
Identical Trees
Challenge
Difficulty 7/10
String Breakdown
Challenge
Difficulty 5/10
Split Set to Equal Subsets
Challenge
Difficulty 7/10
Design A Least Recently Used (LRU) Cache
Challenge
Difficulty 3/10
Validate Palindrome
Challenge
Difficulty 5/10
Count the Planes
Real interview experiences
3 reports from candidates who interviewed at Gusto.
What people at Gusto say
Reviews originally posted on Glassdoor.
The culture at Gusto has been crafted very well. Culture comes from the beginning of a company and the people that started it. I can tell today that those folks (Josh, Eddie, Tomer) are quite kind and have their heads on straight.
Fantastic culture of humility and learning. Loved working with everyone here and I met some of the most brilliant people I'll ever work with.
You get to make a real difference in people's lives with how small the company is and how fast things move
Working here for 4 years so far. Great people to work with, lots of collaboration with people outside of your org. Very open to feedback and suggestions
People are passionate about the mission which leads to very user-centric product development processes. The work here is crucial to helping thousands of small businesses around the country operate. The product directly impacts people’s livelihoods, which feels very rewarding (but sometimes stressful when things go wrong).