Define the founding engineer before you start the search.

Start with the work that must change

Write down three outcomes the engineer should own in their first six months. Be specific: delivering the first customer integration, making releases dependable, or replacing a fragile prototype. These outcomes reveal more about the role than a long list of frameworks.

Make the trade-offs explicit

Decide where you need depth on day one and where someone can learn. A person who enjoys early product discovery may want different support from a specialist in infrastructure. Explain the balance between customer conversations, technical decisions and hands-on delivery.

Show the conditions, not just the ambition

Share the team structure, who makes product decisions, the expected working pattern and the compensation parameters. Candidates need enough context to judge whether they can do their best work. Uncertainty is normal in an early team; clarity about that uncertainty helps.

Build an interview around evidence

Ask candidates to explain a shipped product, a difficult trade-off and a decision they would change. Use a relevant discussion or work sample with clear evaluation criteria. The aim is to understand judgement, ownership and communication alongside technical ability.

What this looks like in practice

In a London AI team build, Josh’s challenge was separating exceptional ability from a fit for the environment the founder was building. Detailed conversations covered startup and scaleup experience, motivations and ways of working. The result was 5+ hires made exclusively for the business. This was Josh’s work before Corellia Talent.

Check the compensation assumptions.

Our salary guide separates advertised pay, disclosed equity and bonus from planning estimates. Compare the role, location and company context before using a figure in a decision.

Questions founders ask