ByteDance Interview Questions
Prepare for ByteDance interviews with practice questions, worked solutions and a round-by-round guide. Explore the pack with 90-day access.
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ByteDance SWE interview process
See exactly how ByteDance runs its engineering loop for TikTok, Douyin, and the rest of the portfolio: every round, how fast it moves, and what each level pays. Then drill the questions candidates actually report, so the pace of the loop never gets ahead of you.
- Recruiter screen
- Online assessment
- Coding rounds
- Cross-team round and system design
- HR round and offer approval
ByteDance interview questions
- Course Schedule (Topological Sort / Cycle Detection)
- Remove Duplicate Letters for Lexicographically Smallest Result
- Longest Substring with At Most K Distinct Characters
- Validate and Evaluate a + / - Expression (No Parentheses)
- Lowest Common Ancestor with Parent Pointers (O(1) extra space)
- Reverse Nodes in k-Group (reverse even if last group size < k)
- Design an LRU Cache
- Best Time to Buy and Sell Stock (with follow-up for multiple transactions)
- Water Jug: Reachability and Shortest Operation Sequence
- Choose k numbers from 1..n without repetition (combinations / permutations)
ByteDance interview strategy
More than half of everything recorded for ByteDance is the online assessment, the highest share of any company here. Clear that and you are most of the way in. The bar then shifts depending on which org you land in, so knowing which one you are interviewing for tells you how hard the rest gets.
Loop Structure & Timeline
ByteDance interview - frequently asked questions
What questions does ByteDance ask in interviews?
ByteDance interviews typically span coding and data-structures/algorithms, system design, and behavioral rounds. Karavine has curated ByteDance interview practice questions with worked solutions: approach, complexity, and code in C++, Java, and Python.
How many rounds is the ByteDance interview?
ByteDance's loop usually includes a recruiter or phone screen, one or more technical rounds (coding and/or system design), and a behavioral round. The exact number varies by role and level; Karavine's ByteDance prep ladder maps the specific loop, round by round.
How hard is the ByteDance interview?
ByteDance interviews are competitive and skew medium to hard on coding and system design. With targeted prep on the question types ByteDance emphasizes, plus the round structure, they are very beatable.
How do I prepare for a ByteDance interview?
Practice ByteDance-style questions across the round types ByteDance emphasizes, then work through the round-by-round prep ladder for what gets offers. Karavine's ByteDance pack bundles the practice questions, worked solutions, online-assessment (OA) tags, difficulty and hotness, and the interview strategy.
What is the ByteDance interview process like?
From the recruiter screen to the final loop, ByteDance's process rewards candidates who prepare for the rounds it weights most. Karavine's ByteDance pack maps the loop and what each round looks for.
What makes Karavine's ByteDance questions different?
Every ByteDance practice question comes with a worked solution (approach, complexity, and code) and maps to the round types ByteDance actually weights, plus OA tags, difficulty, and hotness. They're built for company-specific practice, not generic problem sets.
ByteDance SWE interview guide · All companies · Interview prep guides