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Hi, I'm Messias Junior

Full-Stack Developer with 5+ years of experience creating impactful user experiences. Specialized in React, Next.js, and performance optimization.

Age: 27
πŸ‡§πŸ‡· Brazil
πŸ‡―πŸ‡΅ Japan Experience

Skills & Technologies

Technologies I work with to bring ideas to life

React
Next.js
TypeScript
Vue.js
Nuxt.js
JavaScript
Node.js
Tailwind CSS
Git
Jest
Playwright
React Testing Library
Storybook
SEO
Performance Optimization
A/B Testing
Datadog
Google Analytics
Google Tag Manager
Google Optimize
PostHog
AWS
Docker
CI/CD
PostgreSQL
Strapi CMS
REST APIs
Agile/Scrum

Work Experience

My professional journey in software development

Full-Stack Developer

MedPrev

June 2022 - Present

Leading development of healthcare platform serving 2M+ monthly visitors. Achieved top 3 Google rankings through SEO optimization, implemented Backend for Frontend (BFF) architecture, and built scalable component libraries with Storybook. Utilized Datadog for performance monitoring, implemented A/B testing with Google Optimize, and developed comprehensive testing strategies with Jest and React Testing Library. Enhanced user engagement through interactive features and microinteractions.

Front-end Developer

WeFluence

Dec 2021 - Nov 2022

Defined tech stack and created essential front-end components using React.js, Next.js, and TypeScript. Collaborated closely with teams to deliver high-quality user interfaces.

Front-end Developer

Codengage

May 2019 - Dec 2019

Developed web applications using React, Tailwind CSS, and Gatsby. Managed projects autonomously and maintained direct client communication.

Front-end Developer

CodePlus Junior Enterprise - UTFPR

Sep 2017 - Nov 2018

Developed web applications using JavaScript, HTML, CSS, SASS, Bootstrap, and jQuery. Built solid foundation in front-end development.

Education

My academic background and international experience

In Progress
MBA – Full Cycle Software Architecture

Full Cycle by Code Education

March 2025 – December 2026

Completed
B.S. in Software Engineering

Federal University of Technology – ParanΓ‘ (UTFPR), Brazil

March 2017 – December 2022

Completed
πŸ‡―πŸ‡΅
Research Exchange – Artificial Intelligence

Shibaura Institute of Technology, Tokyo, Japan

March 2020 – March 2021

Get In Touch

Feel free to connect with me on LinkedIn.