Junior Embedded Software Engineer Interview Questions

5,614 junior embedded software engineer interview questions shared by candidates

One technical question asked was to design a public interface for memory allocation (malloc and free) functions that had to intelligently decide between using small_alloc/small_free for allocations up to 30 bytes and big_alloc/big_free for larger allocations. The challenge was to implement a system that could remember which function to call for freeing memory without that information being available at the time of deallocation. The allocation functions allocate fixed size.
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Embedded Software Engineer

Interviewed at Mobileye

3.8
Mar 27, 2024

One technical question asked was to design a public interface for memory allocation (malloc and free) functions that had to intelligently decide between using small_alloc/small_free for allocations up to 30 bytes and big_alloc/big_free for larger allocations. The challenge was to implement a system that could remember which function to call for freeing memory without that information being available at the time of deallocation. The allocation functions allocate fixed size.

The technical interview can be tough if you don't have a solid electrical engineering background. Asked me questions such as given a battery and two wires how can you find the capacitance of the battery? Difference between heap and stack? What do you know about I^2C protocol? and other similar questions. I was surprised the questions were so difficult considering it was an entry level position.
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Embedded Firmware Engineer

Interviewed at Second Order Effects

4.5
May 5, 2023

The technical interview can be tough if you don't have a solid electrical engineering background. Asked me questions such as given a battery and two wires how can you find the capacitance of the battery? Difference between heap and stack? What do you know about I^2C protocol? and other similar questions. I was surprised the questions were so difficult considering it was an entry level position.

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