Newton Duarte

Hello, I'm Newton Duarte

Senior Full Stack Developer

With 10+ years of experience building scalable and high-performance web applications. Strong expertise in React.js, Next.js, Node.js, TypeScript, PostgreSQL, Styled-Components, Material-UI, TailwindCSS, Radix-UI, Shadcn-UI, Design System, and UI/UX Design.

Curriculum Vitae (CV)

Technical Skills

Frontend

React.js, Next.js, JavaScript, TypeScript, Styled-Components, Material-UI, TailwindCSS, Radix-UI, Shadcn-UI, Responsive Design, Design System, Redux, Zustand, Context API

Backend

Node.js, Express.js, Fastify, PostgreSQL, TypeORM, Java, Spring Boot, Hibernate

Tools & DevOps

Git, GitHub, CI/CD, Docker, AWS (Basic), Figma (UI/UX)

Testing

Jest, Vitest, Supertest, React Testing Library, Cypress, Playwright

Professional Experience

Senior Frontend Developer

EduSynch | Remote - US-based

Nov 2020 - Feb 2025
  • Successfully migrated two large legacy applications (Ruby on Rails, Angularjs 1.6) to React.js and Next.js.
  • Built and maintained modern web applications using React.js, Next.js, TypeScript, and JavaScript.
  • Built and maintained an internal Design System containing design tokens, reusable components, reusable configurations across projects, and documentation with Storybook.
  • Developed reusable UI components with Styled-Components, Material-UI, TailwindCSS, Radix-UI, and Shadcn-UI, improving design consistency.
  • Optimized frontend performance, reducing load times and improving responsiveness.
  • Collaborated with product teams, designers, and backend engineers to build intuitive user interfaces.
  • Integrated frontend applications with RESTful APIs and GraphQL, ensuring seamless data flow.
  • Occasionally contributed to Ruby on Rails projects, implementing minor UI/UX improvements.
  • Worked in an Agile environment, participating in sprint planning, code reviews, and daily standups.
  • Mentored junior developers and contributed to internal documentation and best practices.
Full Stack Developer

Syclus Informática | Brazil

Nov 2018 - Oct 2020
  • Developed web applications using Node.js (Express.js), Vue.js, Vuex, and Vuetify.
  • Worked with Firebird, PostgreSQL, and MongoDB on database management.
  • Built authentication and authorization systems for internal applications.
  • Assisted with AWS deployments and DevOps tasks.
Analyst & Developer

Syclus Informática | Brazil

2014 - 2018
  • Implemented ERP solutions, provided client support, and developed internal frontend tools.
IT Analyst

Câmara Municipal de Maceió | Brazil

2013 - 2014
  • Provided IT support and infrastructure setup.
Technical Roles

Various Companies | Brazil

2010 - 2013
  • Worked in IT support, hardware maintenance, and system installations.

Education

Bachelor's in Information Systems

Faculdade de Alagoas (FAL), Brazil

2016

Complementary Education

SaaS with Next.js & RBAC

Rocketseat

2025

Mastering TailwindCSS

Rocketseat

2024

Redux + Zustand

Rocketseat

2024

Next.js App Router

Rocketseat

2024

React.js & Next.js Full Course (50h)

Rocketseat

2024

GoStack - React.js, Next.js, React Native, Node.js (160h)

Rocketseat

2020

JavaScript – The Complete Guide (52h)

Udemy

2020

The Complete Web Development Bootcamp (53h)

Udemy

2020

The Complete Web Design (44h)

Origamid

2018

Contact Me

Languages

Portuguese: Native, English: Intermediate (B2+)