ByteDance Machine Learning Engineer Interview Questions

13+ ByteDance Machine Learning Engineer interview questions drawn from real candidate reports. Sources include 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. Questions span every stage of the ByteDance Machine Learning Engineer loop: OA, phone screen, system design, behavioral, and onsite coding.

What to Expect in the ByteDance Machine Learning Engineer Interview

The ByteDance Machine Learning Engineer interview process typically runs 4 to 6 rounds depending on seniority level. Based on candidate reports in the LeakCode database, the loop usually includes a resume review, an online assessment or coding phone screen, one or more technical rounds, a system design round (for senior and above), and a behavioral or values round.

Difficulty skews toward medium and hard LeetCode-style problems in the coding rounds. System design questions test breadth (component selection, scaling, trade-off reasoning) more than deep implementation. Behavioral questions are tied to the company's stated values and principles.

ByteDance Machine Learning Engineer Questions (Sample)

ByteDance Machine Learning Engineering Internship Tech Phone Screen Experience

phone screen easy 2025 1p3a

I interviewed for a summer intern position in the MLE recommendation team at TT. The first round was a call with HR, which was very simple; we just talked about availability, etc. At the end, the HR w

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TikTok Machine Learning Engineer Interview Experience and Outcome

coding easy 2025 1p3a

I need some points! I want to accumulate more to read interview experiences. This happened in early August when a TikTok LinkedIn HR contacted me. I was interviewing for another TikTok Researcher grad

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Tiktok ML Internship Experience

2024 leetcode

I recently applied for ML intern postion at Tiktok. The first round had the following problems: https://leetcode.com/problems/customers-with-maximum-number-of-transactions-on-consecutive-days/description/ https://leetcode.com/problems/minimum-replacements-to-sort-the-array/description/ Update - Applied here: https://www.aimljobs.fyi/job/6596a616135bae3b1c531998

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TIKTOK SWE-ML

oa 2024 leetcode

skipped OA because recruiter. 1st phone screen: ask in depth about every projects and technologies you have done. - django project: whats django, whats the DB behind, what kind of API is it. -...

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Tiktok Phone interview - MLE

phone screen medium 2024 leetcode

60-minute phone interview. First 30 minutes: ML-related questions. Will deep dive into the algorithms that are mentioned in the resume. Heavily tech-oriented. Last 30 minutes: A LC-medium programming problem: https://leetcode.com/problems/flip-string-to-monotone-increasing/description/

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TikTok Senior MLE

manager 2024 leetcode

I had a recent interview with TikTok for Senior MLE. I initially had a call with the recruiter. Then 2 tech rounds were scheduled. Both were identical, they involved the first...

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Tiktok | Data Scientist | Singapore | Oct 2023 [Offer]

recruiter hard 2023 leetcode

Timeline: 1.5 months Total rounds: 5 1. HR phone screen: Recruiter will first reach out to you to understand who you are and ask about your past experience. If you are a...

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Machine Learning Engineer | Tiktok | Phone Screen

phone screen 2022 leetcode

The scheduled interview was an hour long. First 30 min. ML Design. I was asked to design a recommendation algorithm for tiktok suggesting videos to users within their followed circle. Discuss requirements. Metrics...

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TikTok Interview Question, Practical Coding, not being able to solve it!

oa 2022 leetcode

Practical Coding Assessment Google I have not been able to solve it throughout the interview, how would you solve this? ### Background At TikTok, we often have people label data for ML models...

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Amazon SDE-New Grad-Seattle [Offer], Bloomberg , TikTok , Apple , AWS, KLA , Lucid

oa easy 2021 leetcode

Status: New grad, MS Computer Science, US Position: SDE-New Grad at Amazon Years of Experience: 0 Location: Seattle, Washington Date: December,2020 Timeline Bloomberg [Reject] Bloomberg Phone Interview - 45 mins(Aug-2020) Just started applying for jobs. I saw that...

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TikTok (ByteDance) | Research Scientist | Mountain View

technical easy 2021 leetcode

I had a hard time finding details about research scientist interviews, so here\'s my single round experience. There were two back-to-back interviews. 1. Discussion + coding with research scientist \t Questions about...

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[offer] Amazon, [reject]Facebook,[reject] Apple, ByteDance[offer] Shoppee[offer] Grab

oa easy 2020 leetcode

Amazon february / march ### Online Assessment Two questions from the list on https://leetcode.com/discuss/interview-question/344650/Amazon-Online-Assessment-Questions 1. Medium heap solution 2. Hard graph problem Moved directly to onsite after online assessment ### Onsite (amazon chime) 4 rounds...

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ByteDance | Machine Learning Engineer | New Grad | Singapore | 2020 [Reject]

phone screen easy 2020 leetcode

I applied to be Machine Learning Engineer at bytedance. There were about 160 applicants for this position on LinkedIn (only) so competition is tough. That being said here is the interview...

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Difficulty Breakdown

6

easy

1

medium

1

hard

Based on 13 questions with difficulty labels from candidate reports.

Interview Rounds

Here is how the ByteDance Machine Learning Engineer questions in the LeakCode database break down by interview round, based on what candidates reported:

Round Questions in Database
phone screen 4
oa 4
technical 1
recruiter 1
manager 1
coding 1

Most Common Topics

ml theory (5) system design (2) graph (2) dynamic programming (2) sliding window (1)

Question Recency

2

2025

4

2024

1

2023

2

2022

Question counts by interview year, based on candidate-reported dates.

How to Prepare for the ByteDance Machine Learning Engineer Interview

Use the LeakCode question database as your primary research tool. Filter by role (Machine Learning Engineer), then by round type to focus your prep on the specific stages in your upcoming loop. Sort by recency to see what 2026 candidates actually faced.

  • Start with questions from the last 12 months. Interview processes change and recent data is the strongest signal.
  • Cross-reference questions that appear in multiple sources (1p3a, Blind, Glassdoor). Multi-source confirmation means a question has stronger recurrence probability.
  • For system design rounds: focus on the question patterns, not individual questions. The same design principles recur across many prompts.
  • For behavioral rounds: map your experiences to the company's stated values before the interview. Most behavioral questions at top companies are derivatives of a small set of core leadership competencies.

FAQ

How many ByteDance Machine Learning Engineer questions are in the database?

13+ questions from verified candidate reports. The count grows as new reports are scraped daily from 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode.

Are these questions from real ByteDance interviews?

Yes. All questions are sourced from actual candidate interview reports, not generated by AI. Each entry links back to its source URL where available, and questions are tagged with the year and round reported by the candidate.

How current is this data?

LeakCode updates daily. The database is filtered to exclude duplicate and low-quality entries. You can filter by interview year to focus on recent cycles.

Does LeakCode cover ByteDance OA questions specifically?

Yes. The database includes online assessment questions tagged with round type. See the ByteDance OA page for a dedicated view.

Related: ByteDance All Questions · ByteDance OA Questions · Browse All Companies · Data Sources