Experience evidence that predicts delivery

Years of experience is a lazy filter for embedded hiring. Here is what actually predicts whether an engineer can ship:

1. They have bricked a device and recovered it. Not in simulation. Real hardware, real bootloader, real terror.
2. They can describe the last bug they fixed with a logic analyzer in detail. Not "I found the issue" but "this signal was 200ns too late because the clock tree was misconfigured."
3. They have read a datasheet end-to-end at least once. The errata section is not optional reading for people who ship production firmware.
4. They have written a state machine from scratch and know why spaghetti callbacks are not the same thing.
5. They can explain what happens during a context switch on their chosen RTOS. Not "the task switches" but where the stack pointer goes, what registers are saved, and how long it actually takes.
6. They have had to choose between a vendor HAL and writing their own driver, and can articulate the trade-off without sounding like a marketing slide.

The engineers who have done these things do not need to list "15 years experience" on their resume. Their war stories do the talking for them.

What is the one war story that got you hired?

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