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I will fix or build your node js API with graphql and postgresql

D
dleon55
D
dleon55
David Leon Dev
fix or build your node js API with graphql and postgresql
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fix or build your node js API with graphql and postgresql
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fix or build your node js API with graphql and postgresqlfix or build your node js API with graphql and postgresqlfix or build your node js API with graphql and postgresqlfix or build your node js API with graphql and postgresqlfix or build your node js API with graphql and postgresql

About this gig

Need help fixing or building a robust backend for your web or mobile application? I'm a Full Stack Developer with over 10 years of experience, specializing in building and maintaining scalable APIs using Node.js, GraphQL, and PostgreSQL.

Whether you're dealing with broken resolvers, authentication issues, or need a brand new GraphQL schema with clean architecture, Im here to deliver clean, secure, and maintainable backend solutions.

What I can help you with:

  • Fix bugs or broken GraphQL resolvers
  • Set up new GraphQL schemas (typeDefs, resolvers, queries/mutations)
  • Connect and optimize PostgreSQL or MongoDB databases
  • Build REST endpoints (optional)
  • Secure your API with JWT authentication
  • Deploy your backend to Vercel, VPS, or any cloud platform
  • Docker and PM2 setup for production
  • API documentation via Postman or Playground

Lets build a backend you can scale with confidence!

  • Expertise

    • Localization
    • Performance
    • Databases
    • Source control
    • Testing procedures

  • Programming language

    • JavaScript

  • Frontend framework

    • React.js
    • AngularJS
    • Vue.js
    • jQuery
    • Bootstrap

  • Backend framework

    • Express.js
    • Node.js

Get to know David Leon Dev

David Leon Dev

Building scalable apps with clean code and strong architecture

  • FromMexico
  • Member sinceApr 2023

  • Languages

    English, Spanish, French
Full Stack Developer with 10+ years of experience building scalable, secure, and responsive web and mobile applications. I specialize in Angular, Node.js, GraphQL, and PostgreSQL/MongoDB. I help startups and businesses create high-performance platforms, from design to deployment. Let’s turn your ideas into a production-ready system with great UX and modern architecture.

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