I will build a backend API for your web or mobile app

I
ivanbuilddev
I
ivanbuilddev
Ivan Moreno
build a backend API for your web or mobile app
Full Screen
build a backend API for your web or mobile app

About this gig

I build backend systems and REST APIs for web and mobile applications. This covers user authentication, database design, business logic, and connecting to whatever frontend or app you already have. I write proper error handling and tests, not just code that works once on my machine.

Tell me what your app needs to do and I'll figure out the right structure for it.

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases

  • Programming language

    • C#

  • Frontend framework

    • Angular
    • React.js
    • Svelte
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Next.js
    • Node.js

Get to know Ivan Moreno

Ivan Moreno

Backend developer building AI features, desktop apps, and the interfaces that co

  • FromSpain
  • Member sinceMar 2026

  • Languages

    English, Spanish
Backend developer building AI features, desktop apps, and the interfaces that connect them. I build backend systems and APIs that handle authentication, errors, and real usage properly. I integrate AI into products: chatbots, document search, content generation, or anything needing a language model connected correctly. I also build Windows desktop applications and frontend interfaces that connect cleanly to the backend. I care about understanding the problem before writing code, so what I build fits your actual needs. Tell me what you need and I'll give you a clear plan before we start.

Other Software Development Services I Offer

Related tags