Building Scalable Backends for Web and Mobile Apps

A solid backend is the foundation of any web or mobile product. Getting the architecture right early avoids painful rewrites when traffic and features grow.

Start with clear APIs

REST or GraphQL—pick one and stick to consistent patterns. Version your API if you expect third-party or long-lived clients. Good documentation (e.g. OpenAPI) saves time for everyone.

Database and caching

Choose a database that matches your access patterns (relational for structured, transactional data; document or key-value where it fits). Add caching (e.g. Redis) for hot reads and sessions when needed, not by default.

Security from day one

Authentication (e.g. JWT or session-based), HTTPS, input validation, and rate limiting should be part of the initial design. Don’t defer security to “later.”

At PocketDevs we design backends that scale with your product. We can take you from schema design to deployment and help you avoid the usual pitfalls.