I will develop a secure and scalable custom API for your app

F
ferguerrero_dev
F
ferguerrero_dev
Fer Guerrero
develop a secure and scalable custom API for your app
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develop a secure and scalable custom API for your app

About this gig

Are you looking for a reliable backend developer to build a secure, scalable and fully functional REST API for your application? You're in the right place.

With experience across Django, Laravel, Spring Boot, NestJS and Express, I design and develop custom APIs tailored to your business needs.

What you get:

  • Clean, maintainable and scalable code
  • Secure authentication (JWT, OAuth2, API keys)
  • Full CRUD operations
  • Database integration (MySQL, PostgreSQL, MongoDB)
  • Third-party API integrations
  • Comprehensive API documentation
  • Error handling and input validation
  • Deployment and CI/CD support (Premium)

Whether you need a simple MVP backend or an enterprise-grade API, I deliver high-quality solutions that meet your technical requirements.

Let's turn your backend idea into reality message me before ordering so we can discuss your project in detail.

  • Expertise

    • Performance
    • Security
    • Databases
    • Source control

  • Programming language

    • TypeScript

  • Backend framework

    • Django
    • Express.js
    • Spring
    • Other

Get to know Fer Guerrero

Fer Guerrero

Full Stack Developer, APIs, Backend and Modern Websites

4.0(1)
  • FromMexico
  • Member sinceJun 2025
  • Avg. response time1 hour
  • Last delivery4 days

  • Languages

    English, Spanish
Software Engineer with 2+ years building backend systems, REST APIs, and modern websites for real production environments — enterprise platforms, fintech transactions, and AWS cloud deployments. I help businesses and founders turn ideas into reliable software: secure custom APIs, root-cause bug fixes, and fast, high-converting landing pages. Stack: Java/Spring Boot, Python/Django, Node.js, PHP/Laravel, React, plus PostgreSQL, MySQL, and MongoDB. Clean code, clear communication, solutions built to last. Message me before ordering and tell me what you need — I'll tell you exactly how I can help.

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