The existing calibration software was buggy. It hung, it crashed mid-run, the UI
gave techs no clue what state they were in, and a single mistake forced a full
restart. A 30-minute calibration could turn into a two-to-three-hour slog when
something went wrong.
I rewrote the app from scratch. Stripped it to just the calibration flow,
rebuilt the UI so it's obvious what to do next without a manual, and killed
the restart pattern so a fluffed step doesn't blow up the whole session.
Different industry from trades, same shape of problem. The repetitive,
error-prone software a team has to use every day can be rebuilt around the
pain points instead of around them.