When should a startup hire its first growth person?

You have to define your growth model before you attempt to hire a growth leader. Hiring without one dramatically increases the probability of a disastrous mistake — you won't know what skills you need, so you'll hire the wrong person.

The search for a junior generalist who can run multiple acquisition channels is a fantasy. Either hire an experienced generalist and pay a premium, or hire deep channel expertise in the one channel your model depends on. Splitting the difference wastes six months and a salary.

The signal is a shift in your primary anxiety. If you're still asking “how do I make this work?”, you don't have product-market fit yet and a growth hire won't fix that. The trigger is when it becomes “how do I get more of these customers?”

Don't call this person a marketer; that label misaligns expectations with the work. At the earliest stage you want a high-intelligence generalist with a beginner's mind. Be cautious about growth leaders from larger companies — they often need a team and infrastructure you don't have yet.

Two places tend to be high-value starting points because the core product team has neglected them: the logged-out experience, which rarely gets attention because teams build for existing users, and activation — most early products are built for power users, which makes them intimidating to new ones.

Most seed-stage startups are too early for this hire. If you're not sure you're ready, a strong growth advisor can have company-changing impact — it gets you the craft without the full commitment, and helps you work out what you actually need first.

The threshold is: organic retention, a funnel you can instrument, and enough traffic that experiments produce readable results. Before that, the founders should own growth themselves — they're the ones who need to understand why users aren't sticking.

The first 90 days should be almost entirely diagnostic. The trap is hiring a growth person and immediately asking them to move a top-line number — that's the wrong job for day one. What they should not own yet: paid acquisition at scale, or anything needing a team to execute.