What "fractional" actually means
A fractional CTO is an executive in role, not a consultant on retainer. The distinction matters legally and operationally. They sign off on architecture decisions, attend board meetings, and represent technology in fundraising. They are not a senior engineer on flexible hours, that is staff augmentation.
Typical engagement shape
- Commitment: 2–4 days per week, 6–12 months
- Pricing: €800–€2,000/day in Europe, $200–$400/hour in the US
- Reporting line: CEO or board, not VP Engineering
- Hand-off: the engagement ends when a full-time CTO is hired or the technical function is stable
Who hires one
- Pre-seed founders without a technical co-founder
- Seed-stage companies whose CTO has left
- Series A companies needing executive-level rigour before scaling the engineering org
- PE-backed software companies modernising legacy stacks
What they actually do
A fractional CTO owns four things in week one: architectural decisions in flight, hiring pipeline for the next two senior roles, technical due diligence material for investors, and the engineering operating cadence (standups, planning, retros). Anything beyond that is renegotiated against the day rate.
How HighCircl sources them
HighCircl maintains a vetted bench of approximately 40 European fractional CTOs with prior CTO or VP Engineering experience at Series A+ software companies. Matching typically completes within 72 hours; for the full guide, see /blog/what-is-a-fractional-cto.
