When to Hire a CTO vs Bring in a Fractional One

The question comes up in almost every initial conversation I have with founders: 'Should I just hire a full-time CTO instead?' It is the right question to ask, and the honest answer is: it depends on your situation.

Choose a full-time CTO when

Your product is technology. If you are building a SaaS platform, a marketplace, or any product where the technology is the core value proposition, you need a full-time CTO. The depth of daily involvement required, from hands-on architecture to team management to technical culture, cannot be delivered in 2 to 4 days per month.

You have a development team of 10 or more. At this size, the management and mentorship load alone justifies a full-time technical leader.

You have raised Series A or beyond. At this stage, investors expect a full-time technical leader on the team.

Choose a fractional CTO when

Technology supports your business but is not the product. Service companies, agencies, e-commerce businesses, and traditional businesses going digital often need strategic technical guidance without a full-time executive.

You are pre-Series A and cannot justify the cost. A senior CTO costs 1.5 to 2 million SEK per year fully loaded. A fractional CTO provides similar strategic value for 360,000 to 600,000 SEK per year.

You need to make a few critical decisions. Platform selection, architecture design, first engineering hire. These decisions have massive downstream impact and benefit from experienced guidance.

The transition path

Many companies start with a fractional CTO and later transition to a full-time hire. The fractional CTO can help define the role, participate in the hiring process, and ensure a smooth handoff. This is one of the highest-value parts of the engagement.