Straight Answers
Fractional vs Full-Time Engineer: Which Should You Hire?
Hire fractionally when the work is a defined arc (a board spin, a firmware re-host, a certification push) or needs 10-25 senior hours a week; hire full-time when the work is permanent, product-defining, and justifies 40 hours indefinitely. A fractional senior specialist typically costs less per year than a mid-level full-time hire once salary, benefits, recruiting fees, and ramp time are counted — and starts in days instead of months.
The honest math
- A $150k full-time engineer costs roughly $200k+ loaded (benefits, taxes, equipment, recruiting) — about $100/hour before a line of useful output.
- A fractional senior specialist at $95-$245/hour bills only the hours the project needs, with no recruiting fee and no severance risk.
- Time-to-start: 3-5 days fractional vs 3-6 months for a senior full-time search in hardware niches.
When full-time is still the right call
- The discipline is your core, permanent competency (your product IS firmware — hire firmware leadership).
- You need someone in the room for years of institutional context, not a work package.
- Common hybrid: a fractional specialist bridges the gap and hands off cleanly to your eventual hire.
Common questions
Not on a curated bench. Talent Badger engagements run on statements of work with milestone-gated billing, NDA, and IP assignment — engagement governance closer to a consultancy than a gig app, with vetted senior specialists rather than open marketplace listings.