how to tell if an engineer really understands idempotency
defining idempotency is easy. a duplicate payment, revealed one stage at a time, shows who has handled it in production and who has only read about it.
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hiring on evidence, written down.
how to hire engineers on evidence instead of cvs, and how engineers get found for the work they have actually done.
what is evidence-led hiring?
evidence-led hiring judges engineers on what they can show they understand and have done, with a source for every claim, instead of on how well a cv is written.