Firmware Engineer Interview Questions

2,355 firmware engineer interview questions shared by candidates

Describe volatile, const, static keywords. How do you share data between interrupt handler and main thread if you do not have an OS with your embedded controller? How do you optimize linear piecewise function in terms of speed?
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Embedded Fw (Firmware) Engineer

Interviewed at Nest

3.6
Aug 4, 2015

Describe volatile, const, static keywords. How do you share data between interrupt handler and main thread if you do not have an OS with your embedded controller? How do you optimize linear piecewise function in terms of speed?

Simple embedded systems questions. New SW engineer as a manager for a new FW group and spent 15 minutes debating why FW and SW are different. The manager said they are the same and I disagree as any rea FW guy knows. This was a waste of time and quickly showed the persona of the manager. He then asked if a remote control (IR) is a FW or SW if it had a display since I generalized that FW works and I/F with HW and SW is more for user interface. Really?
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Firmware Engineer

Interviewed at Anduril

4
May 5, 2022

Simple embedded systems questions. New SW engineer as a manager for a new FW group and spent 15 minutes debating why FW and SW are different. The manager said they are the same and I disagree as any rea FW guy knows. This was a waste of time and quickly showed the persona of the manager. He then asked if a remote control (IR) is a FW or SW if it had a display since I generalized that FW works and I/F with HW and SW is more for user interface. Really?

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