Interim CTO · Chief Technology Officer · Fixed term
Interim CTO · what one does, how long, what it costs
An interim CTO is a Chief Technology Officer who takes the whole technology seat, full-time, for a fixed term: through a departure, a rebuild, a deal or a programme with a date. They own the team, the architecture and the budget while they are there, then hand over to a permanent CTO or the team they leave behind.
Across every discipline, the Institute of Interim Management’s 2026 survey puts the average assignment at 10.0 months. Below: what an interim CTO does stage by stage, what one costs, and how the role differs from a fractional or permanent CTO. We recruit interim, fractional, part-time, temporary and permanent technology leaders.
How a brief runswhat we undertake
- 01Brief30-MINUTE SCOPING CALLDay 0
- 02Shortlist of 3–5VETTED · RATE BENCHMARK · IR35After the brief
- 03InterviewsYOU MEET THE SHORTLISTYour diary
- 04Scoped startFIRST-MONTH OUTCOMES AGREEDYou set the date
- 05Fractional, interim and permanentIR35 POSITION SET OUTOn every brief
Shortlist3–5
In the press
Fast Company 16 leaders on when fractional C-suite hires make sense · 24 Jun 2026
Leaders split on part-time C-suite hires: some back them for a defined mandate, others want a full-time owner for work that needs one daily. That is the interim or fractional CTO choice in a sentence.
15 minutes · video or phone
Book 15 minutes to hire an interim CTO
Tell us the scope and the days a week. We come back with interim CTO candidates, their day rates and availability.
- 0115 minutes, video or phone
- 02We scope the role and the days a week
- 03A shortlist of 3–5 after the call
- 04Fractional, interim and permanent briefs
Pick a day that suits · live availability
On the board · last 3 months
Interim CTO jobs on the board
No Interim CTO roles on the board in the last three months. Showing interim executive roles instead.
- InterimSyndicatedInterim Chief Executive Officer (Women's Health Charity)
Verity (PMOS UK) · United Kingdom
Rate not stated3 d/wk - InterimSyndicatedInterim Finance Director
Pragmatic Semiconductor · Cambridge
est £1,400/day5 d/wk - InterimSyndicatedInterim Finance Director
Juro · United Kingdom
£800–£1,000/dayUnited Kingdom - InterimExclusiveInterim Chief Operating Officer
Confidential client (Fractional Quest mandate) · London
Rate not stated5 d/wk
Live interim and fractional CTO roles
How fractional recruitment agencies compare is set out in one place, including how we work: a interim CTO brief and a shortlist of three to five.
01/ the role
What is an interim CTO? The whole seat, for a fixed term
What is an interim CTO? A senior technology executive who runs the CTO seat in full for a set period, then leaves. The Institute of Interim Management defines interim management as leadership by an independent, board or near-board level manager or executive, over a finite time span. Two things set an interim CTO apart: they hold real authority over people, architecture and spend, and the end of the assignment is agreed before it starts.
Not a contractor, not a consultant
A contract engineer or architect delivers a piece of work inside someone else’s plan. A technology consultancy assesses and recommends, then hands the decision back. An interim CTO decides and answers for the result. The IIM draws the same line: it is the interim’s independence, authority and scope that separate an interim management assignment from a contractor’s contract or an agency worker’s temporary work.
On the board, or not
Some interim CTOs are appointed directors for the term; most sit on the leadership team without a board seat. The title alone settles nothing: under the Companies Act, “director” includes any person occupying the position of director, by whatever name called. Agree in writing what the interim CTO decides alone and what goes to the board. For the permanent seat, what a CTO does sets out the full remit.
02/ scope
How to hire an interim CTO
Write the outcome and the date before you write the job title: the platform stable, the migration live, the due-diligence pack finished, a permanent CTO in post. Then decide the contract. An interim CTO works either through their own limited company or as a fixed-term employee, whose contract ends on a set date or when a specific task is done.
Test the level, not the title. The SFIA framework describes its top level of responsibility as determining overall organisational vision and strategy and assuming accountability for overall success; ask for decisions, budgets and board reporting at that level. Chartered IT Professional (CITP) registration with BCS is one signal worth checking, not a requirement. To hire an interim CTO through us, brief us on the interim CTO hiring page; we send a shortlist of 3–5, each with day rate, availability and IR35 position set out, after five-stage vetting.
03/ economics
What an interim CTO costs the day rate, and what moves it
An interim CTO is paid a day rate for the days worked, usually five a week, with no bonus, pension or notice period on top. Exec Capital, a recruiter, publishes a band of £800 to £1,800 a day for an interim CTO in its 2026 Executive Salary Guide. Where a CTO lands in that band depends on the size of the estate, how urgent the problem is, the sector and how much is at stake.
For context across all disciplines, not for CTOs alone, the IIM’s 2026 Interim Management Survey puts the average interim day rate at £907 and the private-sector average at £1,004. Treat those as the market floor for senior interims, not as a CTO rate.
For comparison, Robert Half’s 2026 guide puts a full-time CTO between £120,000 at the lower quartile and £201,500 at the upper, with a median of £160,500, before employer costs. For part-time leadership instead, see what a fractional CTO costs.
04/ comparison
Interim, fractional or permanent three ways to fill the seat
The same CTO seat, filled three ways. Choose by how many days the work needs and whether it has an end.
05/ vetting
How we vet interim CTOs
What we undertake on every brief, before a candidate reaches you.
- 01
Qualification screen
Verify interim CTO tenure, sector context and stage fit.
SOURCING - 02
Mandate fit
Match to your situation — stage, board dynamics, timing.
MATCHING - 03
Reference deep-dive
We take references ourselves, from recent past clients — real outcomes, not titles.
VERIFY - 04
Shortlist
Three to five candidates with day rate, availability and IR35 position set out.
SHORTLIST OF 3–5
06/ interim cto
Interim CTO: what one does, stage by stage
An interim CTO works through an assignment in recognisable stages. The IIM’s guide to interim management names five: entry, diagnosis, proposal, implementation and exit. Knowing them tells you what to expect in week one, month one and the last month.
Entry and diagnosis
The first days go on the estate and the people: the architecture, the incident history, the cloud bill, supplier contracts, the roadmap and who in engineering the rest of the team trusts. Diagnosis often runs alongside firefighting. A useful check is the NCSC’s 10 Steps to Cyber Security, which breaks protecting an organisation into ten components and is written for medium and large organisations; an interim CTO should be able to say where the business stands on each.
The proposal
Within the first weeks the interim CTO puts a plan to the CEO or board: what they found, what they will fix first and what “done” means. The IIM is plain that this may differ from the brief they were hired on. A good interim says so early rather than delivering the wrong thing well.
Implementation
Then the work: the rebuild, the migration, the recruiting, the security fixes, the board reporting. If you sell software, the government’s voluntary Software Security Code of Practice sets out what vendors are expected to do on the security and resilience of what they ship, and gives an interim CTO a baseline to report against.
Exit and handover
The last stage is part of the job, not an afterthought: decisions written down, engineering leads developed and, often, help recruiting and inducting the permanent CTO. For that search, see our CTO headhunter page.
07/ interim cto vs fractional cto
Interim CTO vs fractional CTO: the whole seat, or part of it
Interim CTO vs fractional CTO comes down to days and duration. An interim CTO takes the whole seat, full-time, for a fixed term, and is there every day the team needs a decision. A fractional CTO takes part of the seat, one to three days a week, with no set end, and usually works for more than one company.
Choose interim when the work needs a full-time owner now: an outage pattern, a stalled migration, a departing CTO, a deal timetable. Choose fractional when the business needs senior judgement on architecture, hiring and the roadmap, but not five days of it. Many companies use both in turn: an interim to steady things, then a fractional CTO or a part-time CTO until the business is ready for a permanent hire.
08/ when to hire
When to hire an interim CTO and for how long
Four situations account for most interim CTO briefs. A departure: the CTO or a technical co-founder leaves and the team needs direction while the permanent search runs. A turnaround: outages, runaway cloud cost or a security incident that needs a senior owner this week. A transaction: technical due diligence before a raise or a sale, or integration after an acquisition. A gap in capability: a replatform or an AI build the current team cannot lead alone.
How long? Tie the term to the outcome, with a review part-way through. Across all disciplines the IIM’s 2026 survey puts the average assignment at 10.0 months; it is an all-discipline average, not a CTO rule. A due-diligence brief can be far shorter; a rebuild can run longer.
If the systems that run the business are the problem rather than the product, the brief may be a CIO’s: see interim CIO. For interim leadership across the C-suite, see interim executive recruitment.
09/ questions
Interim CTO FAQ
The questions people ask before bringing in an interim CTO.
Book 15 minutes · shortlist of 3–5
Bring the brief. We architect the team.
A shortlist of 3–5 with day rate, availability and IR35 position set out, after five-stage vetting.
