👋 Hey! My name is

Jose Antonio Paiva.

Fullstack Developer Passionate about solving problems through code. 🧑‍💻

About Me

I have been working as a Fullstack Developer since 2021, with a B.S. in Internet Systems Technology and currently pursuing a degree in Computer Engineering. I am constantly immersed in a learning and growth environment.

I have experience working on large-scale projects and applications, using a variety of programming languages and frameworks, including Java, TypeScript, Python, and more.

Throughout my career, I have worked extensively with APIs, following SOLID principles and implementing software development patterns to ensure code quality and maintainability. I am committed to good practices of clean code development, always seeking to overcome challenges and add value.

I am constantly seeking opportunities that allow me to expand my skill set and make a meaningful impact.

Skills

Programming Languages:

JavaScript

TypeScript

Java

Python

Front-end:

HTML

CSS

React.js

Next.js

Angular

Material UI

Sass

Redux

Tailwind CSS

Bootstrap

Back-end:

Node.js

Spring Boot

Django

NestJS

Express

Databases:

MySQL

MongoDB

PostgreSQL

Redis

Git

AWS

Jenkins

Docker

GitHub Actions

Work Experience

Fullstack Developer

Oct/2025 - Now

Freelancer

Design and build custom software solutions for clients across multiple industries using Next.js, React, Node.js, Python, and MySQL, ensuring scalability and high performance.
Manage AWS infrastructure (EC2, S3) and CI/CD pipelines with GitHub Actions, improving deployment automation and system availability.

Backend Developer

Oct/2024 - Oct/2025

LXP EAD

Scaled backend systems powering brands such as Hering, Arezzo, and Nissin, ensuring high concurrency and reliability.
Built and expanded APIs for orders, reports, and automations, increasing platform coverage by 50%+.
Refactored over 20 critical modules, cutting query loads by up to 90% and reducing new feature development time by 80%.
Performance tuning decreased system response time by 90% and BI loading time by 70%.

Fullstack Software Engineer

Feb/2024 - Oct/2024

KIS Solutions

Developed Full Stack solutions (Spring Boot, Angular, Next.js) for HR and real estate platforms, improving scalability and user experience.
Automated internal workflows with AWS (EC2, S3, SES), reducing process execution time by 30%.
Implemented CI/CD pipelines with Jenkins, reducing production issues by 40% and accelerating delivery cycles.

Full Stack Developer

Jun/2023 - Jan/2024

CPT Softwares

Integrated AI with Langchain, enhancing SaaS platform intelligence and increasing product value.
Designed a scalable MySQL database architecture, improving performance and eliminating key bottlenecks.
Expanded test coverage to 80%, strengthening deployment reliability.

Web Developer Intern

Sep/2022 - Feb/2023

Badaboo

Improved site UI using WordPress, HTML, CSS, and PHP, enhancing user experience and engagement.
Boosted SEO performance, increasing content visibility by 60%+.

Full Stack Developer Intern

Feb/2022 - Feb/2023

UFSJ

Developed and maintained a Python application for a system widely used by students and teachers at Federal University of São João del-Rei.
Created front-end and back-end of a web system to work together with the python application. Utilized Web Scraping and APIs for data acquisition and Django at back-end.
Designed a solution for a custom report generator, employing automation for tasks that previously took hours, resulting in an 60% reduction in processing time.

Education

2022 - 2026
Computer Engineering
Univiçosa University Center
2020 - 2023
B.S., Technology in Internet Systems
Senac University Center
2019 - 2024
Computer Science
Federal University of São João del-Rei

Contact

Feel free to send a message! Let's connect!

jlopespaiva00@gmail.com