Staff Engineer Interview Questions in California | Glassdoor

Staff Engineer Interview Questions in California

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How many race heats are needed to find the 3 fastest pinewood derby cars out of a field of 8, if only 4 cars can run at a time (assuming that every car will always run the way/speed and each lane is exactly equivalent)?

7 Answers

Each heat rules out 1 car (that cannot be one of the 3 fastest).

so is the answer 4 heat 1 (first 4 car) + 1 (4 second set) + 1( Top 2 from first + Top 2 from second set) + 1 (3 car heat among the 3rd placed car)

Only two races of four cars in each. Get the times of all cars and sort them. You don't need any more races because the times will be the same in subsequent races. :)

Given a series of strings, find the biggest common prefix.

4 Answers

Suppose you have a device that fires an interrupt every time it fills up with 5 bits of information; how do you commit this data into a 32-bit addressable memory location, without any padding bits?

3 Answers

How do you reverse an integer value (e.g. 1234 => 4321)

2 Answers

Explain the gcc command-line options for run-time checking of array bounds.

1 Answer

Please describe the SONET frame structure.

1 Answer

describe the shortest path of a graph with negative weights

1 Answer

The interview was not coordinated and they don't have standard questions. You can easily get the interviewers off track so that they don't ask any pertinent questions.

1 Answer

I do not recall any difficult questions. The most tricky question asked by most interviewers is: What do you see yourself doing in the future? Its difficult because not only there is no right answer, but the same answer can be perceived as positive by one interviewer and negative by the other.

1 Answer

The most challenging (and interesting) question was about a strategy for finding signal in a noisy and poorly understood data set. Asking a software engineer a data science question really stretches the mental muscles.

1 Answer