Fractional to Full-Time Hiring: Scope and Time

You’ve decided to try a fractional hire with the intent to eventually bring the person on full-time. Now the question is: how do you actually structure it so the arrangement works?

How many hours per week should a fractional hire work?

The sweet spot is 10 to 20 hours per week. Below 10 hours — less than quarter-time — it is genuinely difficult to get meaningful work done or to develop real rapport with your team. Above 20 hours, you are starting to crowd out the person’s other commitments in ways that may not be sustainable early in the relationship.

Most people who are genuinely interested in a position at your company can find 10 hours in a week — evenings, weekends, or adjusted work schedules. In many cases, 20 hours is achievable. People are often surprised what they can make room for when they are excited about a potential career move.

The key insight is that 10 to 20 hours is enough to be substantial and accomplish something real — which is what you need in order to evaluate whether this person belongs at your company long-term.

How long should the fractional engagement run before you consider converting to full-time?

Two to three months is the right window. Three months is ideal; two months can be sufficient. This is not arbitrary — it maps to how much real work gets done in that timeframe.

Think about it this way: someone working half-time for three months delivers roughly one and a half months of full-time equivalent output. Depending on your sprint cycle, that is three to six full sprints of work. That is enough to complete something genuinely meaningful — not a proof of concept, but a real delivered feature or project milestone.

For the trust-building process to work properly, you need enough time for the relationship to develop through actual work, not just initial impressions. Two to three months provides that runway while keeping the engagement tight enough that both sides remain focused.

What kind of work should you assign during the fractional period?

Real work. Not a test project.

This is a common mistake. Companies design artificial evaluation tasks — “build us a sample feature using our stack” — that signal distrust and attract candidates who treat the engagement as a consulting job rather than the beginning of an employment relationship.

For a developer, real work means actual sprints on your real codebase. For a marketer or growth operator, it means campaigns or projects with actual business stakes. The scope should be something your team genuinely needs done — scoped to what is achievable in the engagement window, but real.

How should you integrate a fractional hire with your existing team?

From day one, add them to your real communication channels — Slack, Teams, email — and treat them as part of the team, not as an outside contractor. Your communication channels are where the relationship actually forms. A fractional hire on a separate email thread is a contractor. A fractional hire in your Slack channels is a colleague.

At Fraction, the standard is two to three live meetings per week during business hours. Most people willing to work in this context can make one to three meetings a week fit into their schedule, even while still in another role. These meetings are not just progress check-ins — they are where team members form real opinions about whether they enjoy working with the person.

This is how you get genuine team feedback before making an offer. By the end of two to three months using this structure, evaluating the fit becomes straightforward — your team has actually worked with this person, not just interviewed them. They know fairly quickly whether the new potential employee is someone they want alongside them every day.

How do you close the deal when converting a fractional hire to full-time?

The person has now spent two to three months inside your company. They have done real work, met your team, seen your culture, and formed their own view of the company’s trajectory. If things have gone well on both sides, you are in a strong position to make an offer.

The primary lever is equity. Salary differences between their fractional rate and a full-time compensation package are often modest. But equity — options, grants, performance compensation — is something a fractional arrangement structurally cannot offer. If the candidate has seen your company up close and believes in where it is going, the combination of equity upside and firsthand conviction is how you close the deal.

The secondary lever is the relationship itself. After two to three months of real collaboration, this is no longer a stranger evaluating your job listing. They know your team, your codebase, your customers. The switching cost of going elsewhere is real. Use that honestly — remind them of what they have already built here, and what they would be walking away from.

For a deeper look at what actually moves the needle in these conversations, see the difference between interview mode and exploratory mode when it comes to fractional-to-full-time transitions.

Frequently asked questions