How to Hire a CTO or CIO: A Complete Guide for UK Firms

Hiring a Chief Technology Officer is one of the appointments where businesses most often misdiagnose what they need. The title covers a wide range of jobs: a hands-on technical co-founder writing code, a VP of Engineering in all but name, an architect-in-chief for a platform business, or a board-level executive who owns the technology strategy of a group with several hundred engineers. The candidate pool for each of those is different, the package is structured differently, and the assessment needs to test different things. Getting the brief right before the search opens matters more for a CTO than for almost any other C-suite seat. Where IT needs leadership at short notice, an interim IT Director can step in. For employers, see our Technical Director recruitment service.

This guide is written for chairs, CEOs, founders, investors and boards working through a CTO appointment at a UK business. It covers what the CTO role is and how it differs from the CIO, when a business genuinely needs one, what the job involves day to day, where the candidates come from, how a well-run search is structured, how to assess technology leaders, how to think about the package, the governance and security accountability that now comes with the seat, and the mistakes that most often derail a search. It draws on the technology leadership searches we run for SME, mid-market, private equity-backed, scale-up and corporate clients. If you are ready to start a search, our CTO recruitment team can talk the brief through with you.

CTO vs CIO: the role distinction

The CTO and CIO roles overlap but are not the same, and many CTO searches go wrong because the business has written a specification that is really a CIO brief, or a blend of the two. The quickest way to see the difference is to look at what each role owns and who it serves.

The CTO is product-and-engineering-facing. The Chief Technology Officer is responsible for the technology the business builds, ships and sells: the product platform, the engineering organisation, the architecture, and the technology roadmap that supports the commercial plan. CTOs usually report to the CEO and sit on the executive committee; in technology businesses they often sit on the board. The role is most prominent in software businesses, fintechs, marketplaces, e-commerce platforms, data businesses and scale-ups where the technology is the product.

The CIO is infrastructure-and-internal-systems-facing. The Chief Information Officer owns the technology that runs the business itself: enterprise applications, infrastructure, end-user technology, information management and, often, security. The role is most common in established businesses where technology supports the operation rather than being the thing the customer buys.

Where the roles converge. In smaller businesses and scale-ups, one person usually holds both remits. The title might be CTO, Head of Technology or occasionally CIO; the specification matters more than the label. In these cases the search should be run as a CTO search with explicit internal-systems responsibilities written in, so candidates understand they will own the finance system migration as well as the product roadmap.

Where the roles diverge. As businesses grow in size and technology complexity, the two seats separate. The CTO owns product technology and engineering; the CIO owns internal systems, infrastructure and often security. The two work together but run different teams, budgets and stakeholder relationships. If the seat you are filling is primarily the internal-systems role, our separate guide on how to hire a CIO covers that appointment in detail. The rest of this guide focuses on the CTO.

A related question that comes up at earlier-stage businesses is whether the first senior hire should be a CTO at all, or a VP of Engineering who will run delivery while the founder retains technical direction. The answer depends on whether the business is short of technical strategy or short of engineering execution. Settling that before the search opens saves weeks of drift later.

When does the firm need a CTO?

Not every business needs technology leadership at C-suite level. A capable Head of Engineering or Engineering Director reporting to the CEO can run an effective technology function for a long time. Five triggers usually signal that the move to a CTO appointment is warranted.

Technology becoming strategic, not operational. When the commercial trajectory depends on technology decisions — product roadmap, platform architecture, build-versus-buy choices, technology partnerships, the use of AI in the product — the executive team needs a senior technology voice in the room. An engineering leader can deliver the roadmap; the CTO is the person who helps decide what the roadmap should be and argues for it at board level.

Scale and complexity. Larger engineering teams, several products, multi-region infrastructure, material security exposure and growing technical debt all push decisions beyond what a department head can reasonably carry. At scale, technology needs executive leadership for the same reason finance and operations do: the consequences of getting the big decisions wrong are too large to delegate.

Investor or capital structure changes. A funding round, private equity investment, sale preparation or acquisition programme changes what the business needs from its technology leadership. Investors will diligence the platform, the architecture and the team, and they expect a credible technology executive who can present it, defend it and then deliver the post-deal plan. Many first CTO appointments are triggered by an investor asking who owns technology at executive level.

Strategic transition. Re-platforming, a move from services to product, integrating acquired businesses, or building an AI capability into the core offer all require executive accountability for technology. These programmes rarely sit comfortably with an engineering manager whose time is consumed by keeping today’s product running.

Regulatory, security and governance demands. Businesses that hold sensitive customer data, operate critical services or sit in regulated sectors face board-level expectations on cyber security, data protection and operational resilience. For FCA-regulated firms, technology resilience is a regulatory accountability, not a technical detail. In these settings the CTO is part of how the board meets its obligations.

Where none of these triggers applies, a Head of Engineering or Engineering Director may be the right answer, with a part-time CTO providing strategic oversight. The decision should be deliberate. Businesses that appoint a full-time CTO without the underlying need often find the role under-defined, and the appointment struggles to show the value that justified it.

Full-time, interim or fractional?

The format matters as much as the title. A business that needs senior technology judgement one or two days a week — to set architecture, oversee an outsourced development partner, prepare for investor diligence or mentor a growing engineering lead — is often better served by a fractional CTO than a full-time hire it cannot yet fill with work. A business facing a sudden departure, a failing programme or a time-limited transformation may need an interim CTO who can start quickly, stabilise the function and hand over to a permanent appointee. Many permanent searches run alongside an interim appointment so the business is not left without leadership while the right permanent candidate is found and works their notice.

What a CTO actually does

The substance of the role splits into four areas, with the weighting varying by stage, sector and ownership.

Technology strategy. The CTO sets technology direction: what the business builds and what it buys, which platforms and architectures it commits to, how it uses data and AI, and what the technology roadmap looks like over the next three to five years. The best CTOs tie each of these choices to the commercial plan, so the board can see why the technology investment is being made and what it is expected to return.

Organisation and team. Building and leading the engineering organisation is often where a CTO’s impact is most visible. That covers structure (product teams, platform teams, data, security, quality), hiring and retention in a competitive market, engineering culture, career paths for senior engineers, and the decision about which work is done in-house and which is outsourced. A CTO who cannot attract strong engineers will struggle regardless of technical ability.

Operational delivery. Whether the technology works: uptime, performance, release cadence, incident response, security, third-party and supplier risk, and the management of technical debt. The role tolerates strategic ambition far more easily than it tolerates repeated failures in delivery, and experienced candidates know this. A good CTO puts in place the engineering practices, metrics and reporting that let the executive team see delivery health without needing to understand every detail.

Executive contribution. The CTO sits on the executive committee and contributes to decisions beyond technology: strategy, pricing, M&A diligence, customer outcomes and organisational design. Strong CTOs are genuine partners to the CEO and the rest of the C-suite. CTOs who stay inside their functional silo are typically replaced sooner, however capable they are technically.

The weighting shifts with stage. Early-stage CTOs spend more time on architecture and hands-on team building, and may still write code. Scale-up CTOs spend more time on hiring, engineering management layers and platform scalability. CTOs in private equity-backed businesses often carry a value creation plan with technology milestones, plus diligence work on acquisitions. In larger groups, the CTO may run technology strategy across several businesses with engineering directors reporting in. Our CTO job description guide, linked below, sets out typical responsibilities in more detail, and a specification that reflects the business’s actual weighting attracts better candidates than a generic one.

The candidate pool

The UK CTO candidate pool is broader than for many C-suite roles, because technology leadership transfers across sectors more readily than, say, sector-specific operations or regulated finance roles. Five pools recur in the searches we run.

Sitting CTOs at peer businesses. Candidates currently holding the CTO seat at a business of similar size, stage and complexity. They have shown they can do the job and understand what it involves. The most credible candidates in this pool are rarely looking and usually have options, so the approach needs to be discreet and the opportunity well articulated from the first conversation.

Step-up candidates from larger businesses. A VP of Engineering, Director of Engineering or Head of Platform at a substantially larger technology business, often with broader scope than the title suggests. These candidates bring depth from more demanding environments and are taking the CTO seat for the first time. Strong searches in this pool work hard on referencing: the question is not whether the candidate is technically capable, but whether they are ready to operate at executive level and own decisions rather than execute them.

Founder-CTOs and founding engineers. For scale-ups and growth-stage businesses, people who have founded or been early technical leaders in technology companies are a distinctive pool. They bring high ownership, speed and product-engineering depth. The trade-off is that the operating discipline of a larger, more governed business can be a different muscle, so referencing should focus on how they handled stage transitions and whether they built teams that outgrew them.

Consulting and advisory transitions. Senior technology consultants and partners moving in-house. The pool brings strong frameworks, programme experience and broad sector exposure. The test is whether the candidate has made, or can make, the transition from advising to owning delivery, with all the trade-offs and accountability that operating leadership involves.

Sector-specialist CTOs from regulated industries. In financial services, healthcare, energy and other regulated sectors, candidates who have run technology functions under similar regulatory expectations bring credentials others do not. For FCA-regulated firms, experience alongside or within the SMF24 Chief Operations Function, covering technology and operational resilience, is particularly valuable; our SMF24 hiring guide covers that context.

Professional credentials play a smaller part in CTO hiring than in finance or legal appointments, because track record carries most of the weight. Some candidates, particularly from enterprise and public sector backgrounds, hold the BCS Chartered IT Professional (CITP) registration, which assesses both technical expertise and professional conduct. It is a useful signal of professional standing, but it should not be treated as a requirement for most CTO roles, where the strongest candidates often come through product and engineering routes that do not involve formal registration.

The search process

A well-run CTO search follows the structure of any C-suite search, with technology-specific considerations at each stage. The phase lengths below are indicative and depend heavily on candidate notice periods, the number of stakeholders involved in the decision and how quickly the business can schedule interviews.

The brief. Typically two to three weeks. The board, CEO and search firm agree which role is genuinely required (CTO, VP of Engineering, combined CTO/CIO), the weighting of strategy versus delivery, reporting lines, the size and shape of the team the CTO will inherit, and the package envelope. This is also the point to be honest about the state of the technology: candidates will find out about technical debt, failed programmes or a fragile platform during interviews, and a search that has been upfront from the start keeps their trust.

Market mapping and candidate identification. Typically four to six weeks. Structured mapping across the relevant pools, named candidate identification and discreet engagement. Technology leaders are sensitive to confidentiality in early conversations because their teams, and often their investors, would be affected by a move. Approaches need to be handled carefully and the opportunity explained clearly enough that a busy, well-paid candidate is willing to take a second call.

Shortlist development. Typically three to four weeks. The strongest candidates from the mapping are engaged formally and go through structured first-stage assessment. CTO shortlists usually run to four to six candidates, combining technical depth and executive leadership capability, and often mixing sitting CTOs with step-up candidates so the business can compare proven experience against potential.

Interviews and assessment. Typically three to four weeks. The shortlist meets the CEO, other members of the executive committee, the chair and, where relevant, investors. For CTO roles there is usually a technical stage, ideally a structured discussion of a real architectural or strategic challenge the business faces rather than a generic test, and a meeting with senior engineers who would report to the new hire.

Selection and offer. Typically two to four weeks. The preferred candidate is offered the role, terms are negotiated and the candidate accepts. Equity is often central for CTO candidates, and the offer works best when it has been designed with the candidate pool in mind rather than copied from the business’s internal precedents.

Notice and onboarding. Senior technology leaders frequently have notice periods of three months or more, and founders or executives with equity may have additional constraints. The business should use this time to prepare the executive onboarding, the introduction to the engineering team and a first hundred days plan. Where the gap is long or the function is under pressure, an interim CTO bridging the period is often worth the cost.

The first hundred days

A new CTO’s first months usually follow a pattern: listen and assess, then decide, then act. In practice that means meeting every senior engineer and key stakeholder, reviewing architecture, delivery metrics, security posture, supplier contracts and the technology budget, and forming a view on what to keep, fix and change. The board should expect an assessment and a plan rather than immediate reorganisation. CTOs who restructure in their first few weeks, before they understand why things are as they are, often lose the engineers they most need to keep.

Assessment: how to evaluate senior tech leadership candidates

CTO assessment has to test both technical judgement and executive leadership, and both halves matter. Three dimensions warrant particular attention.

Technical depth and judgement. Strong CTO candidates show real technical depth without hiding behind jargon. They can explain architectural choices, technology strategy and the trade-offs involved at a level the board can engage with. Case-style discussion of challenges the business actually faces — a platform decision, a past security incident, a scaling problem, technical debt that is slowing delivery — reveals far more than competency questions. Candidates who default to abstract frameworks rather than engaging with the specifics are often less grounded than they first appear.

Executive contribution and influence. The CTO has to operate at executive level: partnering the CEO, contributing to decisions outside technology, and earning credibility with the CFO, COO and commercial leaders. References from CEOs, CFOs and chairs the candidate has worked with provide the evidence here. Candidates who were technically outstanding but struggled to influence at board level often do not make the transition to the CTO seat, and the assessment should test for this directly.

Organisational and talent capability. Building and leading the engineering organisation, and in particular attracting strong senior engineers, is one of the most important parts of the job. References from members of the candidate’s previous teams, and evidence that good engineers chose to follow the candidate to later roles, are among the most reliable signals available.

One specific trap is confusing technology fluency with technology leadership. Candidates who speak well about trends, AI and frameworks are not necessarily the same candidates who have led an engineering organisation through hard decisions: cutting a product line, replacing a supplier, rebuilding a platform under live load, or telling a CEO that a promised date will not be met. Good assessment tests for the second explicitly. Our guide to CTO interview questions sets out questions that separate the two.

Compensation

CTO packages have the same components as other C-suite roles — base salary, annual bonus, long-term incentives and benefits — but the levels and structure vary more widely than for most executive roles, depending on business size, sector, ownership and whether technology is the product. Current pay ranges for CTOs and other senior technology leaders are covered in our technology salary guide, which we update as the market moves. Rather than repeat figures here, the points below cover how CTO packages are typically structured.

Scale-up and venture-backed businesses. Base salary is often held below what a larger business would pay, with equity in the form of share options or growth shares carrying much of the economic value. Candidates from this world price offers on the equity, and they will ask detailed questions about dilution, vesting, leaver provisions and the realistic path to an exit.

Private equity-backed businesses. Packages typically combine a market base salary and bonus with a management equity stake, often sweet equity, tied to the investment thesis. CTOs joining PE-backed businesses should expect to invest alongside the sponsor and to have technology milestones built into the value creation plan.

Larger private and listed businesses. Packages are more formalised, with bonus and long-term incentive plans set within the remuneration policy, and with a stronger emphasis on multi-year performance conditions.

Two dimensions specific to CTO roles. First, equity matters more than for many C-suite roles, because strong candidates from technology businesses have usually seen equity drive most of their wealth and will judge the offer accordingly. Second, the CTO usually owns the engineering team’s pay framework, so offer negotiations can include commitments on team budgets, salary bands and option pools alongside the personal package.

The CTO also has a direct effect on one significant financial item: research and development tax relief. For accounting periods beginning on or after 1 April 2024, most companies claim under the merged R&D expenditure credit scheme, with enhanced support available for loss-making R&D-intensive SMEs, as set out in HMRC’s guidance on the merged scheme and enhanced R&D intensive support. Claims depend on the technical narrative and the records the engineering function keeps, so a CTO who understands what qualifies and works well with the finance director can make a real difference to the quality and defensibility of the claim.

Common CTO search pitfalls

Six patterns recur in CTO searches that go off track.

A blurred CTO and CIO specification. The most common failure. A specification that asks for product technology leadership and enterprise IT ownership in equal measure, without saying which matters more, attracts a mixed pool with little common ground. The fix is to decide which role is genuinely required, or to be explicit about the weighting if one person must cover both.

Briefing a Head of Engineering and calling it a CTO. Specifications that emphasise delivery and team management without the strategic and executive dimensions attract candidates whose seniority does not match the title, and disappoint the senior candidates who apply because of it. The fix is to describe the executive contribution explicitly, or to change the title to match the job.

Underspecifying the executive relationships. CTOs need clarity on how they will work with the CEO, CFO, COO, chief product officer and commercial leaders, and where the line sits between product and technology ownership. Leaving this implicit attracts candidates who later find their remit is smaller, or contested, than they expected.

Treating equity as an afterthought. In PE-backed and venture-backed businesses, equity is often the main economic driver for CTO candidates. Businesses that leave the equity discussion to the end of the offer stage often lose their preferred candidate when the headline economics do not match expectations.

Pattern-matching to the previous CTO. Looking for a successor with the same background, stack and career path as the outgoing CTO is rarely right, because the business has usually changed since that appointment. The fix is to specify what the business needs from the next CTO, not what it had from the last one.

Confusing technology fluency with technology leadership. Candidates who present well on trends are not necessarily those who can lead an engineering organisation through difficult decisions. The assessment process should test the leadership dimension explicitly, with references that speak to it.

Governance, security and data accountability

The CTO’s accountability now extends well beyond engineering delivery. Boards are expected to understand and oversee cyber risk, and the CTO, often alongside a CISO, is usually the executive who makes that oversight possible. The government and the National Cyber Security Centre have published a Cyber Governance Code of Practice for boards and directors of medium and large organisations, built around five principles: risk management, strategy, people, incident planning, response and recovery, and assurance and oversight. A CTO candidate who can explain how they would support a board against each of those principles is showing exactly the executive judgement the role requires.

Data protection is the second area. Product businesses process customer data at scale, and the CTO’s architecture decisions determine whether privacy is built in or bolted on. The Information Commissioner’s Office guide to accountability and governance sets out what organisations are expected to have in place under UK GDPR. CTOs do not need to be data protection specialists, but they should be able to show how previous platforms handled data minimisation, access control, retention and breach response, and how they worked with the data protection officer.

For FCA-regulated firms there is a further layer. The FCA’s operational resilience rules required in-scope firms to be able to operate their important business services within impact tolerances by 31 March 2025, and that is now an ongoing obligation rather than a project. Technology failure is one of the most common ways a firm breaches an impact tolerance, so the CTO’s work on architecture, testing, supplier management and incident response feeds directly into the firm’s resilience self-assessment. Where the CTO, or the executive they report to, holds the SMF24 Chief Operations Function, the appointment also carries personal regulatory accountability under the Senior Managers and Certification Regime. The SMCR is currently going through a reform programme, so firms should check the latest FCA and PRA position on approvals when planning the timetable for a regulated appointment.

AI governance is the newest area. Many CTOs now own decisions about how AI is used in the product and the business, and boards increasingly want a clear view of the risks, costs and controls involved. Some businesses are creating a separate Chief AI Officer role; others keep AI within the CTO’s remit. Either way, the CTO search should test how the candidate has made and governed decisions about AI, not just whether they are enthusiastic about it.

How Exec Capital approaches senior tech leadership searches

Exec Capital runs CTO searches as combined technology and executive leadership work. The technology dimension — fit with the business’s technical direction, depth of engineering leadership, the candidate’s network of engineering talent — gets the same rigour as the executive dimension: influence, judgement and the ability to operate as a peer to the CEO and CFO. We work on a retained basis for permanent CTO mandates and stay involved through to the candidate’s first day in role, including the offer negotiation and the handover from any interim.

Our technology leadership practice covers SME, mid-market, private equity-backed, scale-up and corporate businesses across the UK, on permanent, interim and fractional terms. Where the appointment is into an FCA-regulated firm and the technology leader will carry operational resilience accountability, we layer the regulatory dimension over the commercial brief from the outset, so the candidate’s suitability for any required approval is considered alongside their technical and leadership credentials.

For boards beginning a CTO search, weighing whether a CTO or a VP of Engineering is the right next hire, or considering a fractional arrangement before a full-time appointment, we offer an initial conversation that walks through the role specification, the candidate pool and a realistic timeline before any formal mandate begins. Every search is run by our specialist team, with Adrian Lawrence FCA overseeing each mandate. You can find more on how we run these mandates on our CTO search service page.

Further reading

The related guides below cover the neighbouring decisions that come up in most CTO searches: the difference between a CTO and a VP of Engineering, the typical CTO and Chief Technical Officer job descriptions, and current pay for technology leaders. For the regulated and governance context, the official sources linked above from the NCSC, the ICO and the FCA are the most reliable starting points, and are worth sharing with any board member who will sit on the interview panel. Boards that read them before the brief is written tend to ask sharper questions of candidates and produce a better specification.

Frequently asked questions

What is the difference between a CTO and a CIO?

The CTO owns the technology the business builds and sells: the product platform, engineering team and technical roadmap. The CIO owns the technology that runs the business internally: enterprise systems, infrastructure and often security. In smaller businesses one person often covers both.

When should a start-up hire its first CTO?

When technology decisions start to shape the commercial strategy and investors expect a senior technology executive in the team. Before that point, a strong technical founder, a lead engineer or a fractional CTO is often the better fit.

How long does a CTO search take?

A permanent CTO search usually takes several months from brief to start date, because of the time needed to map and approach passive candidates and the long notice periods senior technology leaders often have. An interim CTO can usually start much sooner.

Should a CTO still write code?

At an early-stage business, often yes, at least part of the time. As the engineering team grows, the CTO’s time shifts to strategy, hiring and executive work, and day-to-day technical leadership moves to engineering directors and principal engineers.

Is a fractional CTO a good alternative to a full-time hire?

For businesses that need senior technology judgement but not a full-time executive — for example to oversee an outsourced development partner or prepare for investor diligence — a fractional CTO can provide strategic leadership one or two days a week at a fraction of the cost of a permanent appointment.