I will develop a secure and scalable backend for your application

M
mrcojdr25
M
mrcojdr25
Marcos Rios
develop a secure and scalable backend for your application
Full Screen
develop a secure and scalable backend for your application

About this gig

Are you looking for a clean, secure, and well-structured backend for your application? You are in the right place. 


I specialize in building robust REST APIs focused on high code quality, clean architecture, and maintainability. Using Python (FastAPI), Node.js, or Java (Spring Boot), I will deliver production-ready code that connects smoothly with your database and scales as your project grows.


Why Work With Me?

- Professional Code Standards: Adherence to strict industry coding standards and clean code practices across all languages to ensure highly readable, maintainable, and scalable software.

- Security Best Practices: Implementation of secure authentication (JWT) and robust security layers, tailored from straightforward validation in the Basic tier up to advanced protection in Standard and Premium packages.


What I Offer:

- REST API Development (FastAPI / Node.js / Spring Boot)

- Database Integration & Schema Design

- Secure Authentication & Authorization

- Clean Architecture & SOLID Principles

- Full Documentation (Swagger / Postman)


My Tech Stack:

- Python, FastAPI

- Java, Spring Boot

- Node.js

- MySQL, PostgreSQL, SQLite, MongoDB


Let's build a solid foundatio

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Programming language

    • Java

  • Frontend framework

    • Angular
    • Flutter
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Node.js
    • Spring Boot

Get to know Marcos Rios

Marcos Rios

Full Stack and Mobile Developer

  • FromMexico
  • Member sinceSep 2026
  • Avg. response time1 hour

  • Languages

    Spanish, English, French
Software developer specializing in building cross-platform mobile applications and robust backend solutions. Experienced in working with Flutter, Dart, Python (FastAPI), and clean architectures, backed by official Microsoft Azure certifications. I focus on delivering clean, scalable code tailored to each project's needs to ensure high-quality digital products.

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