Microservices vs Monolith: What's Right for Your Next Project?

Few architecture debates generate more heat and less light than microservices versus monolith. The honest answer is that the right choice depends almost entirely on your team size, your domain complexity, and where you are in your growth — not on what is fashionable.

Start with the monolith almost every time

For most teams under twenty engineers, a well-structured monolith is the pragmatic choice. One deploy, one codebase, one place to debug. You can ship features without coordinating across service boundaries or standing up distributed tracing on day one.

When microservices earn their complexity

• Multiple teams need to deploy independently without stepping on each other.
• Distinct parts of the system have wildly different scaling needs.
• You have the operational maturity to run distributed systems — observability, CI/CD, on-call.

The hidden cost nobody budgets for

Microservices trade code complexity for operational complexity. Network calls fail, data consistency gets harder, and a simple feature can now touch five services. That cost is worth paying when you have the scale to justify it — and crushing when you do not.

Architect for the organisation you have, not the one you imagine you will become.

Our default recommendation

Build a modular monolith with clear internal boundaries. If a module genuinely needs to scale or deploy independently later, you can extract it into a service then — with real data about where the seams actually are, instead of guessing up front.