The first engineering hire is the most consequential hire a technical founder makes. This person will write code that will live in your system for years, make architectural decisions that will constrain or enable future development, and establish cultural norms that your next nine engineers will learn by observing. The bar should be extraordinarily high — not in terms of credentials, but in terms of judgment, learning agility, and technical foundation.
The first five engineers should be generalists who can navigate across the full stack: design a database schema, write backend logic, build a frontend component, set up a deployment pipeline. Specialists are valuable but premature — you do not have enough known unknowns to staff for all of them, and a team of specialists without generalists cannot move as fluidly as a team of T-shaped engineers.
Hiring process at this stage should prioritise signal over structure. Coding assessments that mimic real work — "here is a repository, add this feature and write a test for it" — reveal more about a candidate's actual engineering judgment than algorithmic puzzles. Reference calls with previous colleagues reveal reliability, communication style, and how the candidate handles disagreement, none of which are visible in interviews.
Culture is set by what you tolerate. If you allow sloppy code review standards to meet a deadline once, you have established that sloppy code review is acceptable. If you cancel a standup and never reschedule it, you have established that process commitments are soft. The early team watches the founders for cues about what is actually valued — not what is stated in the values document.
The technical decisions made in the first year — language, framework, infrastructure, data model — will persist longer than you expect. Made thoughtfully, they are a foundation. Made carelessly, they are technical debt that will compound for years. Invest time in the architecture of the first system even when time pressure argues against it.