Backend Engineer Interview Experience - Mountain View, California
Process
Applied to TikTok USDS. Got a hard-level LeetCode question despite the expectations set by the recruiter in an email: "The technical interviews will be done on HackerRank with an engineer. It will be an easy/medium LeetCode-style problem that may include data structures and algorithms and questions about your technical experience."
Questions
Leetcode 42. Trapping Rain Water.
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Interview Statistics
The following metrics were computed from 2 interview experiences for the TikTok Backend Engineer role in Mountain View, California.
Success Rate
TikTok's interview process for their Backend Engineer roles in Mountain View, California is extremely selective, failing the vast majority of engineers.
Experience Rating
Candidates reported having very negative feelings for TikTok's Backend Engineer interview process in Mountain View, California.
TikTok Work Experiences
- 2.0Comp is good, but management is chaoticBackend Engineer • Current EmployeeSan Jose, California, United StatesMay 8, 2024Pros: Comp is decent. WLB depends on team.Cons: Night meetings. Strict RTO policy. Constant reorgs. Office politics.
- 3.0Learn And Earn, Long HoursBackend Engineer • Former EmployeeSingapore, SingaporeAugust 2, 2025Pros: Learn stuff. Good compensation for interns compared to other SWE firms.Cons: Long working hours (dependent on teams)
- 5.0Back-end Engineering InternshipBackend Engineer • Current EmployeeSingapore, SingaporeNovember 26, 2025Pros: Fast pace, a lot of opportunity to grow, big mentorship.Cons: The return offer system might not be transparent.
TikTok Interview Questions
