10 Questions to Ask Before You Hire a Fractional CTO
By Jason Oglesby · June 25, 2026
The right fractional CTO changes the trajectory of your company. The wrong one bills you monthly to attend meetings and nod.
You can tell them apart in one conversation if you ask the right questions. Here are the ten I would ask, and what the answers tell you.
One: How many clients are you carrying right now? There is no universally right number, but there is a wrong answer: hesitation. A professional knows their capacity and will tell you exactly where you would fit. If they dodge, you are about to buy leftover attention.
Two: Walk me through a technical decision you got wrong. Anyone senior enough for this seat has expensive scar tissue. You are listening for specifics and for what changed afterward. A candidate with no wrong decisions has either never made hard ones or is lying about the record. Both disqualify.
Three: Who does the work you recommend? Some fractional CTOs advise only. Some bring implementation partners. Some roll up their sleeves. Any model can work, but if the answer is a vendor they always recommend, ask who pays whom. You want advice with no commission attached.
Four: How do you charge, and what changes the number? You already know the market ranges. What you are testing is transparency. A clean answer sounds like a menu. A muddy answer predicts muddy invoices.
Five: How will you make yourself unnecessary? This is the question that splits the field. The good ones have a real answer: build the systems, level up the team, help hire the full-time leader when the seat becomes a full-time job. The ones who plan to be indispensable forever are selling dependency, not leadership.
Six: What will you do in the first thirty days? Listen for listening. The right first month is heavy on reading code, sitting in meetings, and interviewing the team, and light on sweeping pronouncements. Anyone who arrives with the strategy already written is bringing you someone else's company plan.
Seven: Can I talk to a client whose engagement ended? Current references are easy. The truth lives with former clients. How an engagement ends, and what stayed standing afterward, tells you what you are actually buying.
Eight: How much time will you spend with my team, not just with me? An executive who only talks to the CEO is an expensive pen pal. The job includes your engineers: reviewing their work, raising their bar, hearing what they will not say in the leadership meeting.
Nine: Where does AI fit in what you would do here? Every technology strategy now has to answer this. You are screening for two failure modes: the dinosaur who waves it away, and the tourist who answers every question with AI. The right answer connects AI to your workflows and your data, with numbers attached, and is comfortable saying "not yet" where it does not fit.
Ten: What is something you would tell me that I do not want to hear? Ask it straight. The entire value of a fractional executive is candor you cannot get from someone who depends on your paycheck. If they flatter you in the sales conversation, they will flatter you in the board meeting, and flattery at that altitude is expensive.
What You Are Really Screening For
Strip the ten questions down and you are testing three things. Do they tell the truth under mild pressure. Do they build systems that outlive them. Have they carried real consequences before.
Credentials matter less than those three. A candidate can have a gorgeous track record and fail the candor test in the first meeting. Believe the meeting.
Hire for truth, systems, and scar tissue. Everything else is a nice-to-have.
