Human Factors Engineer / Ergonomist

Use when a task needs the judgment of a Human Factors Engineer/Ergonomist — computing a NIOSH Lifting Index for a manual-material-handling task, scoring a workstation posture with RULA or REBA, sizing a workstation, reach, or clearance dimension against ANSI/HFES 100 anthropometric percentiles, evaluating an interface's speed-accuracy tradeoff with Fitts's Law, or running a usability test and interpreting a System Usability Scale score against a task-error rate. Distinct from a health-safety-engineer (owns mechanical/chemical/energy hazard elimination) and a commercial-industrial-designer (owns product form and manufacturability) — this role owns the fit between human cap…