Lead Firmware Engineer Interview Questions

1,875 lead firmware engineer interview questions shared by candidates

Implement in C some kind of routine that works such that you can, via a function, provide it with a time T and a void* callback, such that in T time from now, the callback will be automatically called. Specifically, optimize the solution to the first 256 units of time since most schedueling will be done for them. To somewhat rephrase things, the system simulates several timers at once using its single internal clock, optimized around a specific time (i.e. the worst case can still be O(log(n)) but the most common/average case of times between 0 and 256 need to be O(1) The second question was more like a riddle,
avatar

Firmware Engineer

Interviewed at NVIDIA

4.5
Sep 29, 2025

Implement in C some kind of routine that works such that you can, via a function, provide it with a time T and a void* callback, such that in T time from now, the callback will be automatically called. Specifically, optimize the solution to the first 256 units of time since most schedueling will be done for them. To somewhat rephrase things, the system simulates several timers at once using its single internal clock, optimized around a specific time (i.e. the worst case can still be O(log(n)) but the most common/average case of times between 0 and 256 need to be O(1) The second question was more like a riddle,

Viewing 381 - 390 interview questions

Glassdoor has 1,875 interview questions and reports from Lead firmware engineer interviews. Prepare for your interview. Get hired. Love your job.