Your Startup's First Technical Hire: Developer, Tech Lead, or Fractional CTO?

A founder we spoke to last year had hired a "CTO" as employee number two. Eighteen months later, that CTO spent four days a week writing React components and one day apologising for the roadmap. The company was paying a leadership salary, and giving away leadership equity, for a developer's output.

The opposite failure is just as common. A mid-level developer gets hired to build the MVP, and within a year they are somehow expected to choose the infrastructure, negotiate with an agency, and answer investor questions about scalability. Nobody decided they should lead. The work just landed on them because they were the only technical person in the room.

Both mistakes come from the same place: hiring a title instead of hiring for the work that actually exists. This guide breaks the decision into the three realistic options for a first technical hire in the UK, what each one costs, and which combinations work when no single hire covers everything.

Start with the work, not the org chart

Before writing a job description, list what technical work your company will generate in the next 12 months. It usually falls into three piles:

• **Building:** writing code, shipping features, fixing bugs, setting up hosting and deployment
• **Coordinating:** breaking work into tasks, reviewing code from contractors or junior engineers, keeping delivery on schedule
• **Deciding:** choosing the stack, structuring the architecture, hiring, overseeing vendors, answering board and investor questions

Most early-stage startups have a pile of building, a small amount of coordinating, and a thin but high-stakes layer of deciding. The mistake is assuming one full-time person should own all three. The three piles map to three different roles with three different price tags, and the cheapest way to cover them is rarely one over-titled hire.

Option one: a senior developer

If 80% of your next year is building, hire a builder. A senior developer in the UK costs roughly £60,000 to £90,000 depending on city and stack, and a good one will make sensible technical decisions along the way: they will pick boring, proven tools and keep the codebase clean enough to hand over later.

What they will not do is the deciding pile. Asking a senior developer to design a hiring process, manage an agency contract, or defend your architecture in a due diligence call is asking them to do a job they have watched other people do, at best. Some grow into it. Betting your seed round on that growth is a gamble.

Choose this option when you have product clarity, a technical co-founder or advisor who can sanity-check big decisions, and a roadmap that is mostly execution.

Option two: a tech lead

A tech lead is a builder who also carries the coordinating pile. Expect £80,000 to £110,000 in the UK market. They still write code most days, but they also break down work, review pull requests from your two contractors, and keep the freelance designer and the backend developer pointed at the same release.

This is the right first hire when you already have, or are about to have, two to four people producing technical work. One strong tech lead can turn a loose collection of freelancers into something that resembles a team.

The limit is seniority of judgement, not effort. Most tech leads have never hired beyond their own team, never chosen an architecture that had to survive three years of growth, and never sat across from an investor. That is not a criticism. It is just not their job yet.

Option three: technical leadership

If the deciding pile is what keeps you up at night, you need leadership, and you have two ways to buy it.

A full-time CTO costs £120,000 to £180,000+ in base salary in London, plus equity, employer NI, pension, and a recruitment fee, with a hire cycle of three to six months. That price makes sense when there is a full-time amount of leadership work: a team of ten or more, constant architectural change, weekly board exposure.

A fractional CTO covers the same decisions part time, from £1,500 per month for two days a month. The model works because most startups under ten engineers generate a few days of leadership work per month, not thirty. You get the architecture reviews, the hiring support, the vendor oversight, and the credible voice in investor meetings, without creating a salary line that dwarfs your engineering budget.

The fractional option also fails politely. If it turns out you need more leadership time than the retainer covers, you have learned something important cheaply, and you can move to a full-time hire with a much clearer job description.

The three options side by side

Combinations beat compromises

The best answer is often not one hire. A senior developer at £75,000 plus a fractional CTO at £1,500 to £3,000 a month costs less than a single £130,000 CTO who spends most of the week coding, and it covers both the building and the deciding piles properly.

This combination has a second advantage: each person does the job they are actually good at. The developer ships without pretending to be a strategist. The fractional CTO makes decisions without being pulled into ticket-level work. When the company grows, the developer often becomes your first tech lead, and the fractional engagement winds down once a full-time leader makes sense.

Common pairings by stage:

• **Pre-seed, non-technical founder:** freelancers or an agency for building, plus a fractional CTO to specify work and mark the homework
• **Seed, first employees:** senior developer in-house, fractional CTO for architecture, hiring, and investor questions
• **Post-seed, 5 to 10 engineers:** tech lead running delivery, fractional CTO on 4 to 6 days a month until a full-time hire is justified

The title inflation tax

Titles are cheap to give and expensive to take back. If your first developer joins as "CTO", every later conversation gets harder. Strong senior candidates will not report to someone with three years of experience, whatever the title says. Recruiting a real VP of Engineering means demoting someone first, and those conversations lose you people.

The safe pattern is to title the role for the work: Senior Engineer, Founding Engineer, Tech Lead. Founding Engineer plus meaningful equity attracts ambitious people honestly. If they grow into leadership, promoting them is a good day for everyone. Nobody has ever resigned over being promoted.

Your first hire decides your second

Whatever you choose, the first technical hire shapes the next one.

1. Hire a senior developer first, and your second technical need is usually leadership: someone has to own the decisions the developer is quietly making by default.
2. Hire a tech lead first, and your second need is usually hands: another builder, because the lead is now spending half their time coordinating.
3. Start with a fractional CTO first, and your second step is almost always a builder, hired faster and better because someone experienced ran the interview process.

The pattern to avoid is hiring the same shape twice. Two mid-level developers and nobody deciding is how startups end up with twelve months of code that has to be rewritten in month thirteen.