Front-End Engineer with 5+ years of experience across fast-paced startup environments, building scalable, high-performance web applications in React, TypeScript, and Next.js, with growing full-stack expertise in Node.js/NestJS and PostgreSQL. Currently focused on building the frontend layer for enterprise AI agent governance — giving users visibility, control, and confidence over autonomous agent actions. Track record of removing performance bottlenecks and automating manual workflows, cutting manual work by up to 90% in past roles. Comfortable owning features end-to-end, from REST/GraphQL API design to production-grade testing (Jest, Cypress, Playwright, Selenium).
Role: Front-End Software Engineer | React · TypeScript · Next.js · Node.js · NestJS
Remote: Yes
Willing to relocate: Yes
Technologies: React, TypeScript, Next.js, Node.js, Nest.js, PostgreSQL, REST & GraphQL APIs, Tailwind CSS, Styled Components, Material UI, Jest, Cypress, Playwright, LLM Observability (LangSmith), CI/CD.
Résumé/CV: https://drive.google.com/file/d/1UYT53UcVtA6UGKBKz25WNeQ6fSY... | LinkedIn: https://www.linkedin.com/in/jhonatan-alves-11b28015b/ | GitHub: https://github.com/JhonatanGAlves | Portfolio: https://jhonatandev-alves-app.vercel.app/
Email: jhonatan.galves1996@gmail.com
Front-End Engineer with 5+ years of experience across fast-paced startup environments, building scalable, high-performance web applications in React, TypeScript, and Next.js, with growing full-stack expertise in Node.js/NestJS and PostgreSQL. Currently focused on building the frontend layer for enterprise AI agent governance — giving users visibility, control, and confidence over autonomous agent actions. Track record of removing performance bottlenecks and automating manual workflows, cutting manual work by up to 90% in past roles. Comfortable owning features end-to-end, from REST/GraphQL API design to production-grade testing (Jest, Cypress, Playwright, Selenium).