Six Question Sets Test Judgment, Contact, Leadership, Candor, and Transitions
The Interview Library
Companion to The CTO You Actually Need · Updated 2026-09-29
Choose one or two of these sets for the criterion you are testing. Ask for past evidence before hypothetical confidence.
Test Business and Technical Judgment
- Tell us about a technology decision that clearly changed revenue, cost, risk, or strategic choice. What did you know when you decided?
- Describe a technically sound proposal you rejected because it was wrong for the business. What was sacrificed?
- Tell us about a business commitment you challenged. How early did you raise the issue, and what alternative did you offer?
- Describe a time you chose a reversible step instead of a complete solution. What did you learn?
- Tell us about a decision where waiting for more evidence was the wrong choice.
- What technology investment did you stop after supporting it initially?
- Describe a vendor decision where the cheapest or most capable option was not the best choice.
- Tell us how you have connected technical debt to a business decision without turning every engineering concern into executive urgency.
Follow-ups. Authority, options, cost of delay, who disagreed, evidence, actual contribution, result, second-order effects, and later learning.
Test Technical Contact
- Choose a system that mattered to your business. How did you maintain contact with its real condition?
- Describe the last major incident you reviewed deeply. What did you learn beyond the immediate cause?
- Tell us about an architecture decision where respected experts disagreed.
- How did you know an internal platform was useful?
- Describe a migration you decided not to complete.
- When did a metric produce the wrong conclusion?
- What technical subject did you need to learn as an executive, and how did you build reliable judgment?
- What do you personally inspect now, and what have you deliberately stopped inspecting?
For builder roles, add a realistic technical exercise. For enterprise roles, test cross-system and capital reasoning. For physical roles, test interfaces, lifecycle, suppliers, and evidence.
Test Leadership and Delegation
- Which leader did you hire who changed what your organization could do?
- Describe a senior hire that did not work. When did you know, and what did you do?
- What work once depended on you and later did not?
- Tell us about a capable person who strongly disagreed with you and stayed effective.
- How have you built a senior technical career path separate from management?
- Which recurring meeting or governance mechanism did you remove?
- Describe a reorganization whose intended benefit did not appear.
- How do you distinguish a leader who lacks support from one who lacks capability?
Test Candor and Executive Influence
- Tell us about bad news you delivered later than you should have.
- Describe a board or CEO decision you disagreed with but then executed.
- When did you change your recommendation in public?
- Tell us about a peer relationship damaged by a decision. What did you repair, and what remained unresolved?
- Describe a time you had accountability without control. Which mechanism did you change?
- What important risk did your organization accept after you made it visible?
- Tell us about a customer promise you stopped or changed.
- When has your public technical story become too optimistic, and how did you correct it?
Ask Both Sides About a Founder Transition
For the incoming candidate.
- How would you learn why the founding architecture and organization evolved as they did?
- What authority would you require if the founder remains a technical executive?
- Describe a time you worked with a founder or expert with greater social authority.
- How would you respond when an engineer bypasses you for the founder’s opinion?
- Which decisions would you want the founder to retain?
For the founding CTO.
- Which work gives you energy, and which work do you perform mainly because the company needs it?
- What future decision authority do you want?
- What would make a new CTO useful rather than threatening?
- Which knowledge and relationships are dangerously concentrated in you?
- What behavior by the CEO, board, or new CTO would make the transition dishonest?
Ask Fractional and Interim Candidates About Scope and Conflicts
- Which decisions can you own with the proposed time and access?
- Describe an engagement you ended because internal capability had grown.
- How do you prevent clients from waiting for your next available day?
- Which conflicts of interest can arise across your clients, vendors, or investments?
- What is the internal execution role you require?
- What would trigger a full-time recommendation?
- If you may become the permanent candidate, how will that affect the role you design?
- What artifacts and relationships remain after you leave?
