What Principal Skilled Trades Jobs Ask For
Across 15 open Principal Skilled Trades postings that list skills, the ones mentioned most often are ai, nfpa.
Updated September 27, 2026
17 open Principal Skilled Trades postings. The percentages below are measured over the 15 of them that list skills at all.
| Skill | Mentioned in |
|---|---|
| ai | 40% |
| nfpa | 40% |
"Mentioned in" counts postings that name the skill anywhere — including as a nice-to-have — so treat it as the ceiling, not the bar.
Browse 17 open Principal Skilled Trades jobs →
Across all Skilled Trades levels
Most Skilled Trades postings never state a level. This wider list covers them too.
- osha 4,081
- epa 1,802
- confined-space 1,796
- personal-protective-equipment 1,734
- corrective-action 827
- nfpa 759
- hazardous-waste 723
- networking 693
- automation 559
- cnc 431
- assembly 423
- fiber 410