Full-stack software engineer, 5 years shipping production software end-to-end with TypeScript, React, and Python. Currently at CESAR, working on a personal finance fintech: React Native on the front, FastAPI on the back. On the side I build open source dev tools. It's how I learn best: pick a problem, ship something real, make it public.

I care about owning features end to end, writing tests that actually catch regressions, and the small details that make a tool feel good to use.

🌐 Portfolio: annamaria.app · LinkedIn · anna.maria.dev.br@gmail.com

• 🛠️ Shipping features end to end for a personal finance fintech built on Open Finance (React Native + FastAPI + PostgreSQL)
• 🎨 Maintaining entrepta: 14 copy-paste components, 6 themes, installs with one npx command. Accessible and hardened by default.
• ⌚ Building wristkit: Apple Health data on your website — copy-paste React components, your own Supabase, zero telemetry.
• 🎓 Postgraduate in AI Engineering at FIAP (Apr 2026, expected 2027)
• 🌱 2026 open source challenge: 6 open source projects (4/6)

const stack = {
  languages: ["TypeScript", "JavaScript", "Python", "C#", "SQL"],
  frontend:  ["React", "Next.js", "React Native (Expo)", "Tailwind", "Zustand", "Radix UI"],
  backend:   ["FastAPI", "Django", "Node.js", "NestJS", ".NET"],
  data:      ["PostgreSQL", "SQL Server", "MongoDB", "Redis", "Plotly", "pandas"],
  testing:   ["Pytest", "Jest", "Playwright", "Cypress", "SonarQube"],
  ai:        ["RAG", "LangChain", "Azure OpenAI", "Claude Code"],
  cloud:     ["Azure", "Docker", "Docker Compose", "CI/CD"],
};

• 💬 Co-led a WhatsApp chatbot for one of Brazil's largest dental care providers. 97k+ user re-engagements in 3 months, 44% faster than phone, +5 NPS points. Featured in an official WhatsApp Business success story.
• 🌱 Owned the frontend architecture of a B2B SaaS for GHG Protocol compliance reporting (Next.js, Zustand, Tailwind). Built ~25 emission calculators that replaced a ~3-hour specialist workflow with a 5-minute self-service flow.
• 🧰 Built entrepta end to end with Claude Code as primary pair: design system, CLI, docs site, accessibility and security hardening.
• ⌚ Built wristkit: Apple Watch activity rings on your Next.js site in minutes. Your data goes straight from your iPhone to your own Supabase — we never see it.

📍 Brazil · Remote-first
📬 anna.maria.dev.br@gmail.com