How to prepare for your Karat interview

Karat is a third-party live technical interviewer used by Meta, Roblox, Atlassian, American Express, Bank of America, Ford, and others. This guide walks through the format, the five question types their Interview Engineers ask, per-company prep notes for the biggest customers, and how to practice the specific cadence Karat scores you on.

What is a Karat interview?

Karat is not an AI screener. AI is used only for transcript and note generation during the interview — the interviewer, the scoring, and the hire recommendation come from a human. That matters for how you prepare: the interviewer hears your reasoning and rewards clear, structured code-explanation, not just the working solution.

The Karat interview format, step by step

1. Pre-interview scheduling and setup. Karat sends a scheduling link (Calendly-style). You pick a slot, install any browser dependencies, and get a link to their IDE.
2. ID verification. On the call, the Interview Engineer confirms your identity via a photo ID check.
3. Intro round (~5 minutes). Brief background chat and a warmup problem to check your setup.
4. Coding round (~35 minutes). One-to-two problems in Karat's browser-based IDE. Your screen is shared throughout. Talk through your approach out loud — the interviewer is scoring the explanation as much as the code.
5. Systems / architecture (~10 minutes, senior roles only). High-level design or scaling questions.
6. Wrap-up. You get a few minutes to ask the Interview Engineer about the interview process, timeline, or company.

The five question types Karat interviewers ask

• Arrays and strings. Two-pointer, sliding window, in-place manipulation. Practice explaining time/space tradeoffs out loud.
• Hashmap patterns. Frequency counting, two-sum variants, group-anagram-style clustering.
• Tree and graph traversal. BFS/DFS, level-order, recursion vs iteration, cycle detection. Karat's IDE has a whiteboard for sketching — use it.
• String manipulation. Parsing, tokenization, palindromes, edit distance for senior slots.
• Systems / architecture (senior roles). Design a URL shortener, rate limiter, or notification system at high level. Focus on tradeoffs, not implementation detail.

How to prepare for Karat interviews at Meta

• Focus practice on LeetCode Medium and Hard tagged with arrays, strings, and graphs — Meta's Karat interviewers pull heavily from these categories.
• Practice writing the solution first, then explaining the tradeoff in one sentence — Meta interviewers score explanation clarity heavily.
• Talk through your approach BEFORE typing. The interviewer is judging structure, not typing speed.

How to prepare for Karat interviews at Atlassian

Practice the "solve then harden" cadence: get a working solution, then walk through edge cases explicitly (empty input, single element, duplicates, overflow). Atlassian's interviewers reward this discipline.

How MiPrep helps you prepare for Karat

Note: MiPrep is a preparation tool. Karat interviews are conducted with a human Interview Engineer on a shared screen — MiPrep is not designed to run during a Karat interview. Use it to practice the format, not to sit in on the interview.

Karat interview FAQ

Named entities

Karat

The third-party technical interviewing company that conducts live interviews on behalf of employers.

IVE (Interview Engineer)

The human Karat employee who conducts the interview and scores the candidate.

IDE

Karat's browser-based coding environment where the interview takes place with screen sharing.

Code-explanation cadence

The rhythm of talking through your approach before, during, and after writing code — a key scoring dimension in Karat interviews.