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I will build a nodejs rest API with express and postgresql
Valentino B
About this gig
Need a backend that is clean, documented and ready to connect to your frontend or mobile app? I build REST APIs with Node.js, Express and PostgreSQL.
Depending on the package:
-Database design and explicit SQL
-CRUD endpoints with input validation
-JWT authentication
-Swagger/OpenAPI documentation
-Automated tests with Vitest
-Docker setup and deployment
I have built APIs like this in my own projects, such as an expense tracker API with JWT authentication, Docker and automated deployment, so you get readable working code and not a template.
How I work: you tell me what your app needs to store and who will use it, I confirm the scope and the package before starting, and I keep you updated until delivery.
Get to know Valentino B
Valentino B
Fullstack Developer
- FromArgentina
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English, Spanish
Hi! I'm Valentino, a full-stack developer from Argentina focused on backend. I build REST APIs with Node.js, Express, TypeScript and PostgreSQL, and React front ends that connect to them. My own projects include an expense tracker API with JWT auth, 249 automated tests, Docker and CI/CD, and a task manager with Firebase auth. I communicate clearly, deliver on time and ask the right questions before writing code. Message me your idea and I will tell you honestly if I am the right fit.
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FAQ
Do you use an ORM?
By default I write explicit SQL with the pg library, which keeps queries clear and easy to debug. If you specifically need an ORM, message me before ordering so we can confirm it is a fit.
Do you work with databases other than PostgreSQL?
My stack is PostgreSQL. If your project uses another database, message me before ordering and I will tell you honestly if I can take it on.
Can you connect the API to my existing frontend or mobile app?
Yes. Every package includes CORS setup and clear documentation of the endpoints, so your frontend or mobile developer can integrate it without guessing.
Who owns the code and how do I receive it?
You own it. I deliver the full source code in a repository or a zip file, with a README that explains how to run it.
What does deployment include?
The Premium package includes deploying the API to a platform such as Render or Supabase. Any hosting costs beyond free tiers are on your side.
