ByteDance·Software Engineer·Technical Phone Screen
- How would you approach debugging performance issues in a GPU cluster?
“This was the bulk of the interview and I was not ready for it.”
FAANG / Big Tech
Most of these ByteDance write-ups come from Software Engineers (194), then Machine Learning Engineers (45) and Data Scientists (17). The most reported rounds are the technical phone screen (227), the system design round (28), the behavioral / leadership round (16) and the onsite coding round (9).
289 interview notes · updated Sep 2026
“This was the bulk of the interview and I was not ready for it.”
“Pretty standard once you get past the parsing.”
“This is a beast of a question.”
“This question is basically five questions stitched together and the interviewer just...”
“Started fine, rattled off the textbook definitions.”
“I knew this was binary search pretty quickly, the monotonic property is obvious once you think about it.”
“The tricky part here isn't the facts, it's the throughline.”
“The scope of this thing is deceptively wide.”
“Binary search on a float range was the move, but I kept second-guessing my termination condition.”
“I went with YouTube as the comparison and it worked okay, but I spent too long on discovery mechanics and barely touched governance or creator incentive structures.”
Candidates most often report a technical phone screen (227 write-ups), a system design round (28), a behavioral / leadership round (16) and an onsite coding round (9).
Across 227 technical phone screen write-ups, the most tagged question topics are Algorithms & Data Structures (215 questions), Technical Trade-offs (177) and System Design (71).
Across 28 system design write-ups, the most tagged question topics are System Design (50 questions), Technical Trade-offs (41) and Data Modeling (13).