The Netflix Fallacy
Every founder who's read a Netflix engineering blog wants microservices. We understand the appeal: independent deployments, scalability, technology diversity.
But here's what the blog posts don't emphasize: Netflix has 2,000+ engineers. They have entire teams dedicated to service mesh, observability, and deployment tooling.
You have a team of 5-20. You don't have a platform team. You probably don't even have dedicated DevOps.
The Netflix architecture solves problems you don't have. And it creates problems you can't afford.
The Real Cost of Microservices
Operational overhead (per service):
- Monitoring and alerting: 2-3 hours/month
- Logging and debugging: 3-4 hours/month
- Deployment pipeline maintenance: 2-3 hours/month
- Documentation and ownership: 3-5 hours/month
- Total: 10-15 hours/month per service
Multiply by 10 services: 100-150 hours/month just to keep the lights on.
Distributed systems complexity:
- Network failures become your problem
- Data consistency across services
- Service discovery and load balancing
- Circuit breakers and retry logic
These problems literally don't exist in a monolith.
When Microservices Actually Make Sense
Team size > 50 engineers. You have enough people to own independent services without context-switching constantly.
Clear bounded contexts with independent scaling. Your billing system genuinely needs 10x the compute of your notification system.
Genuine polyglot requirements. Different services need different languages or runtimes (rare in practice).
You've already hit monolith scaling limits. Not theoretical limits — actual, measured limits.
For most startups at seed or Series A? A well-structured modular monolith will serve you better. Read more about why we avoid premature microservices.
The Modular Monolith: Best of Both
There's a middle path: the modular monolith.
Structure:
- Single deployable unit (like a monolith)
- Clear module boundaries (like microservices)
- Shared database with schema ownership per module
- Can extract modules to services when needed
Benefits:
- No distributed systems complexity
- Easy to debug with simple stack traces
- Fast development iteration
- Clear path to microservices if you need them later
Who does this? Shopify runs a 3 million line modular monolith serving millions of merchants.
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