Wellington Gabriel de Mattia

Full-Stack Developer · React.js · TypeScript · Node.js · REST APIs · PostgreSQL

Foz do Iguaçu, Paraná, Brazil+55 (67) 99924-0524wgmattia@gmail.comlinkedin.com/in/wgmattiagithub.com/gabrielmattia
Professional Summary

Full-Stack Developer with experience building responsive and scalable web applications, working across the front-end with React.js, TypeScript, Angular, Tailwind CSS, and Material UI, and on the back-end with Node.js, Laravel Lumen, PostgreSQL, and REST API integrations. Bachelor's Degree in Computer Science from the Federal University of Mato Grosso do Sul — UFMS. Skilled in developing modern user interfaces, collaborating with back-end teams, optimizing application flows, and delivering clean, maintainable code focused on performance, usability, and user experience.

Technical Skills

Front-End

React.js (Hooks, Context API, Performance Optimization)TypeScriptJavaScriptHTMLCSSSass/SCSSTailwind CSSStyled-ComponentsMaterial UIResponsive Web Design

Back-End

Node.jsLaravel LumenRESTful API IntegrationWebSockets

Databases

PostgreSQL

Languages

TypeScriptJavaScriptPythonJavaC/C++

Testing

Automated TestingJestCypress

Tools & DevOps

GitGitHubViteDockerGitHub Actions (CI/CD)Figma

Other

AngularWeb Application DevelopmentUI DevelopmentAPI IntegrationCross-functional CollaborationCode Reviews

Professional Experience

Front-End Developer
Join Ads · Current
  • Develop modern, responsive, high-performance user interfaces using React.js, TypeScript, Tailwind CSS, and Material UI, focusing on user experience, usability, and application performance.
  • Collaborate closely with the back-end team to integrate REST APIs, optimize application workflows, and create scalable front-end solutions capable of handling large volumes of data and users.
  • Build reusable interface components and performance-oriented features, taking part in code reviews and debugging while following good coding practices and maintaining clear communication with the team.
Full-Stack Developer
Nymeria Desenvolvimento de Sistemas · July 2023 – October 2024
  • Built and maintained web applications across the stack — Angular front-end interfaces and Node.js back-end services.
  • Delivered new features and maintained existing systems, integrating with external services and REST APIs.
  • Focused on code quality, performance, and maintainability, following best software development practices in a collaborative team environment.

Education

Bachelor's Degree in Computer Science
Federal University of Mato Grosso do Sul — UFMS · 2023
Academic & Project Experience

PoP Modeler (Scientific Initiation Project)

Web platform for business-process-of-process modeling, built with React.js and Laravel Lumen. Worked on front-end features, interface components, and integration with back-end services.

popmodeler.ledes.net

Collective Housing Debates (Extension Project)

Website to promote architectural projects focused on collective housing.

debateshabitacaocoletiva.ufms.br