This is an online programming test. The algorithmic problem of Bytedance is much more difficult than other companies. There are a lot of dynamic programming questions, and there are two dynamic programming questions out of the four questions, and the time limit is two hours.
Interview questions [1]
Question 1
1. Leetcode simple level questions.
2. The pass rate is 44.4%. A simulation question is given to an array. If the current element is the smallest in the queue, dequeue, if not, move to the end of the queue.
3. Find the longest descending subsequence for an array consisting of letters, and return the length and sequence. It seems that if the length is equal, it should be returned in lexicographic order.
4. Find the number of subsequences where the maximum value-minimum value <k for an array.
The entire interview processes was a recruiter call plus three rounds of technical interviews. Interviewers were friendly. Technical coding questions and work related questions were asked based on your past work experiences. Each interview saved time for the candidate to ask questions.
Interview questions [1]
Question 1
Technical questions related to past work experiences.
Scheduled with recruiter. Scheduled and interviewed. It was well organized. Interviewer are good. HR, manager, hiring manager. Some of the interview organized around 8pm. Some of the interview organized around 8pm.
The interview process was well-structured and relatively efficient. It typically consisted of multiple rounds:
Online assessment / initial screening: Focused on data structures and algorithms, with medium-to-hard LeetCode-style problems.
Technical interviews (2–3 rounds): Covered core computer science fundamentals (data structures, algorithms, system design basics), along with problem-solving and coding in real time. Interviewers also asked follow-up questions to evaluate depth of understanding and optimization.
Project discussion: Detailed discussion of past projects, including design decisions, trade-offs, and real-world impact.
HR / behavioral round: Focused on communication skills, teamwork, and cultural fit.
Overall, the process emphasized strong coding ability, solid fundamentals, and the ability to think clearly under pressure. Interviewers were generally professional, though the difficulty level was on the higher side, especially for algorithm questions.