Open to opportunities

Jady Santos Rufino da Silva

@jadysantosrufinoda

Senior Software Engineer with 9+ years building user-centric React/Next.js products, scalable frontends, and performance-first design systems.

Brazil

Message

What I'm looking for

I’m looking for a senior role where I can build scalable React/Next.js experiences, optimize performance and SEO (Core Web Vitals), and ship accessible design-system-driven products with cross-functional teams.

I’m a Senior Software Engineer with over 9 years of experience specializing in React-based development and a passion for creating user-centric digital solutions. I focus on scalable frontend frameworks, modularity, and measurable improvements in user satisfaction.

At BairesDev, I led development of eCommerce platforms using React.js and Next.js, improving user experience and SEO performance. I transitioned the DynamicWorkbooks app from Angular 9 to Next.js with server-side rendering, achieving a 40% performance boost and reducing TTFB by 35%, while integrating Contentful as a Headless CMS.

I bring a strong architecture and quality mindset across product teams—using React Query, Redux Toolkit, Storybook design systems, and robust testing strategies. I also apply accessibility standards (WAI-ARIA, WCAG 2.1) and validate with Core Web Vitals and Lighthouse audits to keep pages fast, accessible, and dependable.

Previously at PagoNxt and Vodafone, I built modular React/TypeScript UIs, integrated GraphCMS for multilingual experiences, and leveraged SSG/SSR and dynamic routing with Next.js to optimize SEO and performance. Earlier roles strengthened my full lifecycle engineering approach, including CI/CD, Docker/Azure deployments, and TDD with Jest.

Experience

Work history, roles, and key accomplishments

Current

Senior Fullstack Engineer

Current

BairesDev

Jan 2024 - Present (2 years 5 months)

Led development of eCommerce platforms using React.js and Next.js, improving user experience and SEO performance. Migrated an Angular app to Next.js with server-side rendering, achieving a 40% performance boost and reducing TTFB by 35%, and implemented headless CMS integration, Core Web Vitals/Lighthouse checks, OAuth-secured APIs, and WCAG 2.1 accessibility.

React Next.js Server Side Rendering Performance Optimization Contentful React Query Redux toolkit OAuth PostgreSQL

Senior Frontend Engineer

PagoNxt

Dec 2022 - Jan 2024 (1 year 1 month)

Built highly modular React and TypeScript frontend components, integrating GraphCMS for multilingual content and optimizing SEO/performance using Next.js SSG/SSR and dynamic routing. Led accessibility improvements and testing with Jest, Cypress, and React Testing Library, partnering with Node.js and Java teams to deploy RESTful services.

React TypeScript Next.js GraphCMS Jest Cypress React Testing Library RESTful APIs

Senior React Developer

Vodafone

Oct 2021 - Dec 2022 (1 year 2 months)

Developed scalable eCommerce UI using React.js, Next.js, and GraphQL, improving page load time by 25% through code splitting, lazy loading, and prefetching. Implemented Lighthouse/Core Web Vitals tracking, enhanced SEO via analytics and metadata, and built reusable Storybook components with unit/E2E testing and code quality improvements.

React Next.js GraphQL Lazy Loading Performance Monitoring (Lighthouse Core Web Vitals)SEO Storybook Analytics Unit Testing

Senior Frontend Developer

Invillia

May 2020 - Dec 2021 (1 year 7 months)

Delivered responsive B2B and pharmaceutical eCommerce experiences using React, Next.js, and Tailwind CSS. Integrated Umbraco as a headless CMS (REST/GraphQL), implemented semantic accessible UIs and advanced SEO with SSG/ISR, and improved uptime to 99.5% using automated testing and CI/CD workflows.

React Next.js Tailwind UI Umbraco Headless CMS CI CD Automated Testing

Frontend Developer

Solutis Tecnologias

May 2019 - May 2020 (1 year)

Developed and maintained a React frontend using ES6+, TypeScript, and Redux, improving application functionality and user experience. Built robust API calls with error handling and authentication, and collaborated with designers to deliver responsive UI using BEM and SOLID principles.

React TypeScript Redux Javascript (ES6)Authentication Error Handling Responsive UI BEM SOLID

Fullstack Developer

BTG Pactual Bank

Apr 2018 - May 2019 (1 year 1 month)

Revamped web and mobile apps using React, React Native, and Redux, creating a more streamlined and responsive user experience. Supported monolith-to-microservices transitions by building Node.js REST endpoints, applied TDD with Jest, and deployed services with Docker on Azure to improve performance, reliability, and scalability.