A bit about who I am and my journey in technology
Hi! I'm Antonio Junior, a Full Stack developer with 8+ years of experience, specialized in building scalable solutions focused on usability and user experience. Throughout my career I've worked as Tech Lead across frontend, backend, and mobile — leading multidisciplinary teams and driving architecture decisions, code reviews, and technical mentoring. I've contributed to high-performance projects handling 1M+ daily requests, with strong focus on code quality, scalability, and cross-team collaboration.
Areas where I bring technical leadership and end-to-end delivery
Clean architecture with React, Angular, and market libraries
Scalable APIs with Node.js, Nest, and Express. Best practices, testing, and architectural patterns
Android and iOS applications with React Native, publishing and managing apps in app stores
Automated deploys and stable production environments
Demand management, refinements and agility, scrolling and mentoring
Contributor to the largest technology and information security event in the interior of Ceará
2024 — Present·2 years
I work on Full Stack development of applications for the healthcare sector, with focus on responsive interfaces, performance, and user experience
3 yrs 8 mos·2020 — 2024
2022 — 2024·1 yr 11 mos
Led the company's mobile front, driving the development of React Native applications for Android and iOS, with focus on legacy code refactor, developer mentoring, and continuous delivery
2021 — 2024·2 yrs 10 mos
Worked as Senior Frontend Developer, responsible for high-performance responsive interfaces in large-scale projects, using Angular and its ecosystem
2020 — 2024·3 yrs 8 mos
Worked as Full Stack developer, delivering end-to-end solutions: from frontend to backend, including infrastructure and deployment pipelines
2020·9 months
Worked as DevOps Engineer in a home-office setting, responsible for deploy automation and AWS cloud infrastructure management
2017 — 2020·2 yrs 8 mos
Worked as a freelance Full Stack developer for over 2 years, delivering complete solutions to clients across different segments — from frontend to backend, mobile, and cloud infrastructure
Formal training and continued learning
Unijuazeiro
Aug 2014 — Jun 2018
ReactJS & Next.js — Complete from basics to advanced
Luiz Otávio MirandaNestJS Complete — REST API, TypeORM, JWT and more
Luiz Otávio MirandaAdvanced React
Willian JustenRedux with React
Leonardo LeitãoDocker Course
Leonardo LeitãoComplete Web Development
Leonardo LeitãoiOS with Fastlane — Automated deploy
Igor RamosIII Cyber Security Forum for the Healthcare Sector
Faculdade Sírio-Libanês
Issued Jun 2025
ReactJS
Rocketseat
Issued Apr 2022View credentialReact Native
Rocketseat
Issued Apr 2022View credential
JavaScript Complete ES6+
Origamid
Issued Apr 2022View credentialRedux with React
Origamid
Issued Apr 2022View credentialComplete React
Origamid
Issued Apr 2022View credential
JavaScript
TypeScript
HTML5
CSS3
React
Next.js
Node.js
NestJS
Express
Tailwind CSS
PostgreSQL
MongoDB
Docker
AWS
Azure DevOps