Sergio Pereira@SergioRocks
The ideal tech team size is 1.
Not one person per company. One person per outcome.
For years, we built features like this:
- PM defines scope
- Designer mocks it
- Backend builds APIs
- Frontend wires UI
- QA tests it
That made sense when implementation was slow. AI changes that.
Today, one strong builder with the right tools can:
- Define the specs
- Design the UI
- Generate most of the code
- Ship and iterate
The bottleneck is no longer execution. It’s ownership.
AI amplifies individuals much more than big teams.
The more a feature is split across people, the more the gains get diluted in handoffs, reviews, and coordination.
This pattern already works for solo founders. One person ships a full SaaS product.
But it also scales up. The best teams inside larger companies are starting to look like collections of “teams of one.”
Each person owns a slice end to end.
- Clear scope
- Clear responsibility
- Fewer dependencies
AI didn’t eliminate teams. It made individual ownership the fastest way to build, even inside big teams.