Scaling an Engineering Team from 10 to 100

Structure follows communication

As headcount grows, the bottleneck shifts from writing code to coordinating people. Team topology — how you split ownership — matters more than any individual hire.

Small, durable teams with clear ownership outperform large pools reshuffled per project.

Invest in the paved road early

Shared CI/CD, observability, and onboarding documentation compound. What feels like overhead at 15 engineers is what keeps 80 engineers productive.

Hire for the next stage, not the last one

The skills that built the product rarely match the skills that scale the organisation. Plan hiring against where the team is going, and give early engineers a growth path so scale does not push them out.