I build fast, accessible web & mobile products — obsessed with performance, UX, and DX across every layer.
constemerson={role: "Frontend & Mobile Specialist",focus: "Product Engineering",specialty: ["React","React Native"],orientation: ["web performance","mobile","UX","UI","DX"],frontend: ["TypeScript","React","Next.js","Angular","Vue","Tailwind"],mobile: ["React Native","Expo","Flutter"],backend: ["Node.js","Python","GraphQL","Supabase / PostgreSQL"],cloud: ["AWS","GCP","Azure","Firebase","Terraform","Docker"],ai: {building: ["multi-agent systems","MCP servers","skills","rules","loops"],studying: "AI engineering — agents, RAG, evals & orchestration",take: "AI amplifies engineering, it doesn't replace thinking",},editors: ["Zed","VS Code","WebStorm"],};- 🎯 Frontend & Mobile specialist — React & React Native from architecture to production.
- ⚡ Obsessed with Core Web Vitals, bundle size, and zero-jank mobile UX.
- ☁️ Ship to the cloud — AWS · GCP · Azure · Firebase, infra as code with Terraform & Docker.
- 🤖 Building AI agents — multi-agent orchestration, MCP servers, skills, rules & loops.
- 📚 Deep-diving into AI engineering: agentic workflows, RAG, evals & prompt design.
- 🧪 Every feature ships with a 3-layer test net: unit → integration → E2E (Playwright).
- 🌎 Brazilian dev.
| 🧠 Languages |      |
| 🎨 Frontend |      |
| 📱 Mobile |    |
| ⚙️ Backend & Data |     |
| ☁️ Cloud & Infra |       |
| 🤖 AI & Agents |      |
| 🚀 Tooling & Testing |       |
