This guide is for technical founders who know they need a senior PM but are not sure what good looks like from the outside, or how to evaluate someone for a role they have been doing themselves.
When You Actually Need a Senior PM
The signal is not headcount or funding stage. It is whether product decisions are slipping through the gap between you and engineering. When you are the bottleneck for prioritisation, when customer discovery is not happening because you are heads-down, or when the roadmap is a list of features rather than a hierarchy of bets, the PM hire is overdue.
What a Senior PM at This Stage Does
They do not replace the founder in product vision. They operationalise it. A strong early PM handles the discovery loop with customers, translates vision into prioritised work, and keeps engineering unblocked with clear context. What they do not do is override the founder on product direction.