API & Backend
API & Backend Development Services
We build the APIs, data models, and backend services your product runs on — in Node.js, Python/FastAPI, or PHP/Laravel — secure, documented, and ready to scale.
The challenge
A shaky backend caps everything above it: slow APIs, fragile data models, and no documentation slow every team that touches them. You need a backend built to last, in the language and database that fit your project.
We build the APIs, data models, and backend services your product runs on — in Node.js/NestJS, Python/FastAPI, or PHP/Laravel — secure, documented, and designed to scale rather than just clear the first feature. Your stack and your database, not a one-size-fits-all default.
A shaky backend caps everything above it: slow APIs, fragile data models, and missing documentation slow down every team that touches them. We design data models and API contracts for growth, with auth, validation, rate limiting, and least-privilege access built in from the start.
REST or GraphQL; PostgreSQL, MySQL, MongoDB, Redis, or Supabase; plus headless CMS with Strapi — we pick what fits, then ship it documented and tested so your team can build on it with confidence.
Sound familiar?
If any of this rings true, you're in the right place.
Your APIs are slow, and every new feature makes them slower.
The data model is fragile, and no one fully trusts it anymore.
There's no documentation, so onboarding anyone new takes weeks.
How we solve it
Your problem, and exactly how we remove it.
The problem
APIs and data models weren't built to scale.
How we solve it
We design data models and API contracts for growth, not just the first feature.
The problem
Security is an afterthought.
How we solve it
Auth, validation, rate limiting, and least-privilege access are built in from the start.
The problem
No docs or tests slow every team that touches it.
How we solve it
We ship documented, tested APIs your team can build on with confidence.
What we deliver
Scope of work
Tech stack for this service
- Node.js
- NestJS
- Python
- FastAPI
- PHP
- Laravel
- Strapi
- PostgreSQL
- MySQL
- MongoDB
- Redis
- Docker
Why CodeBaxh
What sets this work apart.
Designed to scale
Data models and APIs architected for growth, not just the first feature.
Secure by default
Auth, validation, rate limiting, and least-privilege access built in.
Documented and tested
Clear API docs and test coverage so your team can build on it confidently.
How we work
How a API & Backend project runs
A calm, visible rhythm from the first call to launch — short loops, weekly demos, and clear updates throughout.
Discovery
We map the domain, the data, and the clients your API serves.
Design
Data model, API contracts, and the right database for your data.
Build & test
Secure endpoints with validation, tests, and clear documentation.
Ship & support
Deploy with monitoring, then extend as your product grows.
Proof
Relevant work.
A real project that shows this service in production.
Fixed-scope, retainer, or staff-augmentation engagements available. See engagement models or book a discovery call.
FAQ
API & Backend — FAQs
Both. We pick based on your clients and data needs: REST for simple, cacheable APIs; GraphQL when clients need flexible, typed queries. We can also build hybrid setups.
All three. We build backends in Node.js/NestJS, Python/FastAPI, and PHP/Laravel, and set up headless CMS with Strapi — we pick the stack that fits your project and team, not a one-size-fits-all.
PostgreSQL or MySQL for relational data; MongoDB for flexible documents; Redis for caching and queues; Supabase when you want Postgres plus auth and realtime out of the box. We advise based on your data.
Yes. We frequently build or rebuild the backend and API layer for an existing web or mobile frontend.