Backend Engineer Interview Experience - Sydney, Australia
Process
I met two very talented individuals, one in each round, who were quite warm and friendly. I had engaging discussions, and they were generous in giving me time for my questions.
Timing-wise, they were very flexible and responsive with interview schedules and reschedules.
Questions
Coding - Design LRU Cache
Objects have a priority value attached and should have constant fetch time.
Discussion - Complexity of different data structures
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Interview Statistics
The following metrics were computed from 8 interview experiences for the TikTok Backend Engineer role in Sydney, Australia.
Success Rate
TikTok's interview process for their Backend Engineer roles in Sydney, Australia is extremely selective, failing the vast majority of engineers.
Experience Rating
Candidates reported having mixed feelings for TikTok's Backend Engineer interview process in Sydney, Australia.
TikTok Work Experiences
- 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.
- 5.0TikTok Backend InternBackend Engineer • Current EmployeeSingapore, SingaporeMay 20, 2022Pros: Flat management, great office culture, and work-life balance (WLB).Cons: Less on-boarding training; you should always explore yourself.
- 3.0Great Perks, Intense WorkloadBackend Engineer • Current EmployeeSingapore, SingaporeApril 12, 2025Pros: High flexible benefits, free lunch, fixed bonusCons: The pace is fast and the workload is very high.
TikTok Interview Questions
