Fractional vs full-time
vs interim CTO.
Which kind of technology leadership do you actually need? An honest breakdown by commitment, accountability, and the stage you're at.
Commitment and stage, weighed honestly.
The real question isn't which title is best. It's how much leadership you need, and for how long.
The seat, every day
- , A full-time, long-term commitment in the seat
- , An executive search that can take six months
- , Worth it once you have roughly 25+ engineers
- , Heavy and slow to unwind before that
Senior judgment, now
- →Senior leadership in the seat in days, not quarters
- →Scales up or down with the actual need
- →Cross-industry pattern matching, embedded
- →Accountable for the outcome, not just advice
One cell each, plainly.
Full-time CTO
Right when you have 25+ engineers and need the seat every day.
- →A permanent, full-time executive hire
- →A months-long executive search
- →Best when technology is the whole company and at scale
Fractional CTO
Ongoing, part-time, embedded and accountable. My flagship.
- →Senior judgment without a full-time hire
- →Scales with you as the need grows
- →Best for Series A scale-ups building the org
Interim CTO
Full-time but temporary, to cover a gap or carry a transition.
- →In the seat every day, for a defined period
- →Stabilizes, leads, and hands off cleanly
- →Best when the CTO just left or you're mid-transition
Consultant
Advice from the sidelines, then it's back to you.
- →Delivers a recommendation, not the outcome
- →No accountability for whether it works
- →A fractional CTO makes the call and owns the result
Which one is right?
When is a full-time CTO worth it?
When technology is the core of the business and you have enough engineers, usually around 25 or more, that the role needs someone in the seat every day, owning the function full-time and for the long term. Below that scale, a full-time CTO is often more commitment than the stage warrants.
What's the difference between fractional and interim?
A fractional CTO is ongoing but part-time, leading your technology alongside other commitments. An interim CTO is full-time but temporary, in the seat every day to cover a gap or carry a transition until the permanent hire lands. Both are hands-on and accountable; the difference is the depth and duration of the commitment.
Can a fractional engagement convert to interim or full-time?
Often, yes. Many engagements start fractional and scale up to interim (full-time, temporary) when the need intensifies, or help define and hire the eventual full-time CTO. The point is to match the commitment to the problem, and change it as the problem changes.
Which is right for a Series A company?
For most funded Series A scale-ups, a fractional CTO is the sweet spot: you need to build a real, AI-native engineering and product organization, but rarely need a full-time CTO in the seat every day yet. A fractional CTO architects the org, hires it, and operates it, then scales the commitment as you grow.
Still not sure
which you need?
Tell me your stage and what's not working. I'll give you a straight answer, even if the answer is "not me."