Dexcom Embedded Engineer Interview Questions

The questions to prepare for a Dexcom Embedded Engineer interview. Questions from real interview reports rank first. Updated weekly.

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CodingStart here. 11 questions · ~92 min

Explain what stack overflow does in embedded systems and how to debug it using stack usage, memory layout, and fault analysis.

volatile const static in CHard

Explain how volatile, const, and static affect optimization, mutability, storage duration, and linkage in C.

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Compare SPI I2C and UARTMedium

Explain how SPI, I2C, and UART differ in speed, wiring, framing, and typical embedded use cases.

uartcommunication protocolsi2c

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RTOS Scheduling TypesEasy

Tests your fundamentals of RTOS scheduling behavior and implications for responsiveness and control.

RTOSSchedulingbasics

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Priority Inversion and InheritanceHard

Tests your real-time systems knowledge and ability to reason about scheduling correctness.

RTOSSchedulingpriority inversion

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Behavioral & Leadership11 questions · ~92 min

Owning a Bus Debug EscalationMedium

Tests ownership and communication in a hands-on embedded debugging situation with ambiguous root cause and cross-functional coordination.

logic analyzerhardware debuggingi2c spi

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