I applied online. The process took 3 weeks. I interviewed at TikTok (Singapore) in Oct 2024
Interview
Describe the primary data processing frameworks you’ve used (e.g., Spark, Flink) and how they work.
What challenges have you encountered in big data processing, and how did you resolve them?
For large-scale, real-time data streams, which tools or frameworks would you choose and why?
When optimizing performance in a data pipeline, what specific areas do you focus on?
Interview questions [1]
Question 1
When optimizing performance in a data pipeline, what specific areas do you focus on?
I applied through an employee referral. The process took 2 weeks. I interviewed at TikTok (San Jose, CA)
Interview
3 rounds in total. Every round will have deep dive on Resume, foundation questions, 2-3 Coding questions, BQ questions... Overall fair enough. Coding on their own platform. Might interview in Chinese sometimes.
First round of tech interview: 3 questions, 1 SQL hard, 1 SQL medium and 1 brain teaser. Interviewer asked to code in a notepad and insist my solution was wrong. As I couldn't run the code in IDE I couldn't prove my code was right. After my interview I ran my code and it is working perfectly well.
I applied through a recruiter. I interviewed at TikTok
Interview
I solved complex SQL problems, discussed Spark architecture, and answered performance optimization questions, including indexing strategies, partitioning, query tuning, and resource management in distributed data processing systems effectively and efficiently.
