Jeferson Lopes
Senior Frontend Engineer at Deal
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJeferson Lopes is a Senior Frontend Engineer based in São Paulo with seven years building production-grade web applications across fintech and enterprise domains. He specializes in modern React ecosystems (TypeScript, React 19, Vite) and has led development of a multi-tenant internet banking SPA with modules for PIX, cards, credit and payments, combining state management (Zustand, React Query), form validation (React Hook Form + Zod) and accessible component design. Comfortable across the stack, he brings DevOps and CI/CD experience (Terraform, Azure DevOps), observability (Datadog) and security controls to front-end delivery, which helps him ship resilient, compliant interfaces at scale. A self-taught developer who has rotated through DevOps, QA automation and design work, he pairs hands-on engineering with UX sensitivity—often contributing to component-driven development and Storybook-based libraries. Notably, he has experience orchestrating microfrontends (Single-SPA) and tailoring white-label deployments for over 110 clients, demonstrating both technical depth and product-minded scalability.
7 years of coding experience
8 years of employment as a software developer
Tecnologo, Análise e Desenvolvimento de Sistemas, Tecnologo, Análise e Desenvolvimento de Sistemas at Uninove - Universidade Nove de Julho
Github Skills (2)
testing9
python9
Programming languages (2)
Github contributions (5)
jeferson-lopes/filmes-teste
Jun 2020 - Apr 2022
Contributions:15 pushes, 1 branch in 1 year 9 months
JefersonLopes1/Whatsapp-Send
May 2019 - May 2019
Contributions:5 commits, 4 pushes, 1 branch in 1 day
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.