The Chief Technology officer (CTO) in a startup is the person responsible for leading the technology side of business.

She or he lays the technology foundation of the business by building architecture, making key technology decisions and guiding the engineering team.

In this blog we give a full view of who the startup CTO is, what they want and how you find them.

We will focus on the CTO that works in a relatively early stage software company.

Startup CTO, who you’re talking to

Most startup CTOs started with building their own applications or writing code for other companies.

Most software engineers already learned to code as kids, so most engineers and CTOs are software engineer by trade.

Some engineers choose to develop into a leadership role and others are more likely to stick with writing code.

The CTO not only is (or was) a great coder, more than anything she’s a great leader.

I started out writing software at the age of 12 and then gradually moved into working on larger and larger projects becoming more of a leader than an individual contributor  - Oskar Stål, CTO Spotify

To be part of the leadership of a startup, you have to have an entrepreneurial personality.

Things go wrong all the time, you have to make a lot of sacrifices and you have to find joy in continuously pioneering into the unknown.

I’m an entrepreneur and hacker - Solomon Hykes, CTO Docker

A lot of good engineers would not necessarily be good CTOs.

Most engineers focus on building great code and are not finding joy in leading a team and company.

But sometimes the line between a coder and a leader is very thin, and a great engineer who loves coding, might end up a great leader later in life.

That’s why you need to understand what to look for in a great startup CTO, what are they able of doing and more importantly, what do they love doing.

Main responsibilities of the Startup CTO

Let's first look at what the CTO actually does in a startup.

Like with many leadership roles within a startup, you have to carry a lot of weight. Because you’re typically not with a lot of people, a lot of responsibilities and activities come down to you.

That also is the case for the startup CTO.

The main responsibilities of the startup CTO are:

• Managing the team: manage the direction and performance of the technology team that usually exists primarily of software engineers, but also for example technical product managers and technical support staff
• Setting out technology vision: set out an inspiring and realistic vision for the technology team to work towards to, align the technology vision with the product vision and company mission
• Building the tech stack: mapping technology architecture and making critical technology decisions like service architecture, data architecture, choice of libraries, APIs and integrations, etc.
• Setting up and guarding guidelines: safeguarding company software development guidelines, principles and way of working
• Introducing new technologies: inspire with new software and tools that the team can implement in the product or use to work more efficiently
• Operating current technology: make sure the solution stays up and running and build in continuity mechanisms
• Hiring: recruiting the best engineers and specialists for the team, assessing candidates and making the final hiring decision

That list is long on purpose. The startup CTO is not a senior engineer with a better title, and the gap between those two jobs is where most first CTO hires go wrong.

CTO or VP Engineering: which one do you actually need?

Settle this before you start looking. It is the cheapest decision to get right and the most expensive one to get wrong.

The cleanest framing is still Fred Wilson’s: the CTO is the person best able to define the technology strategy, the VP Engineering is the person best able to run the engineering team - AVC.

Practically, the CTO owns the decisions that point outward: architecture, platform bets, technical vision, credibility with investors and customers. The VP Engineering owns the decisions that point inward: team structure, delivery process, hiring, career paths, shipping predictably.

Hire a VP Engineering when you needed a CTO, and you get a well run team building the wrong thing. Hire a CTO when you needed a VP Engineering, and you get beautiful architecture that nobody ships.

At pre-seed and seed the honest answer is usually that you need one person doing both, leaning hands-on. The split only earns its keep once managing the team is a full job by itself.

Khosla Ventures describes three structures that actually occur: a head of engineering reporting to the CEO, a technical CTO paired with a VP Engineering who manages, or a single Chief Technology and Product Officer covering both - Khosla Ventures.

What the startup CTO wants

You are not the only one choosing. At this level the candidate is interviewing you, and they have options that pay more with a fraction of the risk.

Four things decide it, roughly in this order.

• Real ownership of the technical decision: this is the one that actually moves people. A CTO who has to get architecture choices approved by a non-technical founder will leave, and the good ones can smell that dynamic in the first conversation.
• Equity that reflects the risk: they are trading a safe salary for a lottery ticket, and they know the odds.
• A problem worth their time: senior technical people are unusually motivated by hard problems and unusually bored by CRUD apps with a growth story.
• A CEO they trust: they are betting years of their life on your judgement, distribution and fundraising ability.

On equity, know the benchmarks before the conversation starts. For a hired CTO at Series A or B, Index Ventures puts a typical grant at around 1% of fully diluted equity in the US and 0.7% in Europe, against VP-level grants of 0.3% to 0.8% at Series A - Index Ventures.

A co-founder CTO who joins before there is funding or a product is a completely different negotiation, in the double digits, and you should not anchor one conversation on the other. The word "CTO" covers both, which is exactly why so many of these discussions go sideways.

Khosla’s advice on closing is worth repeating: if both sides have done their homework and been transparent, you should land within 15% on total compensation. If you are miles apart, it usually means someone misjudged the stage or the scope, not the person.

How to find a startup CTO

Start with the fact that governs this entire search: the people you want are not applying.

A strong CTO candidate is employed, well paid and not reading job boards. Posting the role and waiting is not a sourcing strategy for this hire. Every channel that works is outbound or referral.

• Your investors first: a lead investor who has seen hundreds of technical leaders, and has placed CTOs at portfolio companies at your stage, is the highest signal source you have. Ask them before you ask anyone else.
• One stage ahead: the best profile is often not a sitting CTO but the person who was employee #3 to #8 at a company one stage ahead of you, who helped scale the team and wants the top job next.
• Where they already are: open source projects, engineering leadership communities and technical meetups beat any job board, because you can see the work and the way they talk about it.
• Your own senior engineers: promotion is underrated, but only if the person actually wants to lead. Plenty of great engineers do not.
• Executive search, if the budget is there: the fastest route to a structured shortlist, at a real price.

That last one deserves a number. Retained executive search typically costs 25% to 35% of first-year cash compensation, and top-tier firms hold minimums of roughly $75,000 to $100,000 - TGS. For a seed-stage company that is a serious slice of runway, which is why most founders at this stage run the search themselves and lean on their investors. Khosla argues the firms still earn it through candidate volume and calibration, reporting up to 5x more quality candidates, which is worth weighing against the cash.

If you do run it yourself, the work is building a target list of 50 to 100 names and then routing as many as possible through a warm introduction. Tools that search across public profiles at scale, from LinkedIn Recruiter to AI sourcing platforms like HeroHunt.ai, are useful for assembling that list. They do not replace the intro. For a hire this senior, a cold message converts far worse than a mutual connection saying you are worth a coffee.

The option before the full-time hire: fractional

If you are not sure you need a CTO yet, you probably do not, and there is a middle step.

A fractional CTO gives you senior technical judgement a couple of days a week. Reported retainers cluster around $8,000 to $25,000 per month, with roughly $15,000 for two days a week being a common shape, against $300,000 to $500,000+ all-in for a full-time CTO - Kompella.

This works well when you need architecture decisions, vendor choices and hiring help, but do not yet have an engineering organisation to lead. It works badly when the role is genuinely about building and holding a team together, because that is a presence job, not an advisory one.

The usual trigger for going full-time is coordination: once the engineering team grows past a handful of people and things start dropping between them, you need someone whose job is the team, not someone who visits it.

How to evaluate them

The hard part is that you are often assessing someone more technical than you are. That is fine, and it is not an excuse to skip the assessment.

Do not outsource the judgement entirely to a technical friend doing a one-hour chat. Run a real process: consistent prompts across candidates, multiple interviewers, and written feedback against criteria you set in advance. Khosla is blunt that the CEO makes the final call as the hiring manager, and that job descriptions written too rigidly cause strong candidates to self-select out before you ever meet them.

Two signals are worth more than the rest. The first is hiring ability: ask them to walk you through engineers they have hired, how they set the bar, and who they could bring with them. A CTO who cannot recruit is a bottleneck by month three. The second is humility: listen for "we" instead of "I" when they describe past wins, and watch whether they can explain a technical decision to you without making you feel stupid. That is the exact skill they will need with your board, your customers and your team.

Ask about the failures too. A CTO who has never had an architecture decision go badly either has not shipped enough or is not telling you the truth.

Conclusion

The startup CTO is a leadership hire that happens to require deep technical skill, not a technical hire that happens to come with a title.

Get three things right and the search gets much easier: decide whether you need strategy (CTO) or execution (VP Engineering) before you look, know your equity benchmarks before you negotiate, and accept that the person you want will be found through your network rather than your inbox.

And if the honest answer is that you are not ready for a full-time CTO, take the fractional step first. Hiring the wrong CTO is considerably more expensive than waiting six months for the right one.

Written by Yuma Heymans (@yumahey), who built HeroHunt.ai, the world’s first AI Recruiter, and has been writing code since he was six. He writes about hiring technical talent from both sides of the table.