Category
Server-side engineering, APIs, data processing, and backend system design.
Keyword search can only find what's literally there. When users search for 'laptop bag' and your documents say 'notebook carrying case,' regex won't help. Vector search understands meaning — and MongoDB Atlas supports it natively.
Most scaling advice is generic. Here are the patterns that have consistently worked across real systems handling millions of requests — and the ones that sound good but fail in practice.
The choice between Postgres and MongoDB isn't about which is 'better.' It's about understanding the access patterns, consistency requirements, and operational constraints of your system.