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 Carta 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?
Carta practice problems
Company-linked challenges and related lessons from our library. Not a prediction of your interview.
Challenge
Difficulty 4/10
Contiguous Subarray Sum
Challenge
Difficulty 7/10
Matrix Operations
Challenge
Difficulty 7/10
Pick A Sign
Challenge
Difficulty 4/10
Bottom Left Node Value
Challenge
Difficulty 8/10
Merge K (Multiple) Sorted Lists
Challenge
Difficulty 5/10
Longest Substring With No Duplicate Characters
Real interview experiences
3 reports from candidates who interviewed at Carta.
What people at Carta say
Reviews originally posted on Glassdoor.
There is a lot of cross-function collaboration. In particular, engineering has developed positive and trusting relationships with other functions
Henry is a visionary, and he cares about employees. I’m shocked the score the company has here. For engineering positions I’ve seen all of my coworkers are happy
New engineering leadership since last year and new initiatives are helping Carta grow from a startup into an enterprise company.
I love the product I'm working on building. I think it'll be a game changer for private equity liquidity.
The company is growing and hiring quickly and we have a lot of interesting projects going on. We had have quarterly hackathons to work on new ideas and projects, and regular show and tells meetings to present new projects to the whole company. Growth is encouraged with mentorship, and engineering leadership has presented career paths.