Open to opportunities

nelson castanha

@nelsoncastanha

Message

Front-End Software Engineer specializing in React, TypeScript, and user-centric web and mobile interfaces.

Brazil

Message

What I'm looking for

I seek remote frontend roles where I can build user-centric React applications, improve frontend architecture, collaborate cross-functionally, and continue growing in modern web and mobile technologies.

I am a Front-End Software Engineer with 4+ years building, maintaining and enhancing web and mobile interfaces using React, React Native, JavaScript, TypeScript, HTML and CSS. I thrive in fast-paced, startup-like environments and collaborate effectively with cross-functional teams to deliver high-quality, user-centric products for enterprise and SMB clients.

My strengths include methodical problem-solving, frontend architecture improvements that reduced post-deploy issues, and introducing tooling and code-quality enhancements that lowered recurring bugs and sped feature delivery. I am fluent in English and Portuguese, adaptable, and continuously expanding my skills in modern frontend technologies and best practices.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Accenture

Oct 2024 - Present (1 year)

Built two production-ready React applications for a transportation infrastructure client (ticketing and admin) and refactored a legacy CRA codebase to improve maintainability, reducing recurring bugs by 30% and accelerating feature delivery.

React TypeScript JavaScript React Query Zustand Azure AD Git Refactoring

Software Engineer

Capgemini

May 2021 - Oct 2024 (3 years 5 months)

Developed and optimized web and mobile interfaces using React and Next.js, improved page load speed and SEO via static site generation, and ensured frontend reliability with Jest, Vitest, Cypress and Playwright in Agile teams.