Prove you can do the work safely and well.
Evidence in skilled technical work is proof you can do the job safely:
- Work logs documenting tasks completed and problems solved.
- Safety cards and certifications showing you're trained for the hazards.
- Tool and equipment proficiency — demonstrated, not just claimed.
Try it: think of something you've fixed or built (a bike, a PC, a repair at home). Write a short "work log" entry: the problem, what you checked, what you did, and how you confirmed it worked. That's exactly the habit professionals keep.