Freelance Full Stack Engineer / AI Consultant Self-employed
Design and build AI-powered web applications and LLM-based solutions for startups, from architecture through production.
João Batista Ferreira
Senior Software Engineer · React, TypeScript, Node.js · AI/LLM & RAG
Actively looking · Member since 16 Oct 2026- Location
- Brazil
- Desired salary
- Unspecified
- Work preference
- Remote Only
- Experience level
- Senior
About
Professional summarySenior Software Engineer with 18+ years building and scaling product-driven web platforms. Strong in React, TypeScript and frontend architecture, with fullstack delivery on Node.js, Go and Ruby on Rails. Since 2024 shipping LLM, RAG and agentic features in production (AI site builder at GoDaddy, plus AI contracts at Pump and Arancia). Led and mentored teams in distributed international environments. Based in Santos, Brazil; remote, contractor (PJ) or CLT.
Experience
Career historyFull Stack Engineer (AI Platform) Dappier
Built and owned the frontend of a production AI-agent platform.
Software Engineer GoDaddy
Built frontend features for GoDaddy's website builder and e-commerce.
Senior Frontend Engineer Ender
Led frontend development in a globally distributed team.
Full Stack Engineer Foursquare
Drove frontend/backend integration for ad-tech applications using React.
Education
Learning historyUniversidade Paulista (UNIP)
Associate Degree, Human Resources Management
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