Full-stack Developer + AI | LLM/RAG, AWS, React/TypeScript
I build scalable web and AI solutions focused on measurable business impact.
- Reduced time-to-interaction by 80%+ in a critical migration from AngularJS to React/TypeScript.
- Built an AI Level 1 support assistant resolving up to 50% of tickets before human support.
- Kept AI inference cost under US$15/month while scaling to hundreds of client operations.
- Documented and evolved 30+ design-system components to increase consistency and delivery speed.
- makenrosa.github.io - Professional portfolio hub.
- topclean - Business website project (production-oriented case).
- CRM-TCS - Full-stack CRM (React + Django + PostgreSQL).
- java-openai - Java integration with OpenAI API.
- little-green - ESG-oriented web application.
- portfolio - Front-end foundation project.
- NEXTI - Software Developer (Jan 2025 - Present)
- NEXTI - Front-end Developer (Jan 2024 - Jan 2025)
- NEXTI - Front-end Intern (Apr 2023 - Dec 2023)
- Arquivo Contabil - IT Intern (Dec 2021 - Jul 2022)
- Frontend: React, TypeScript, Zustand, React Query
- Backend: Python, Django, Java, Node.js
- AI/Data: AWS Bedrock, Pinecone (RAG), Lambda, Step Functions, prompt engineering
- DevOps: Jenkins, GitHub Actions, Docker
- Database: PostgreSQL, MySQL
- MCP na Pratica: Crie Agentes e Multi-Agentes com LLMs (Udemy)
- LangChain: Crie agents com Rag e IA Generativa (Udemy)
- AI Automation: Build LLM Apps and AI-Agents with n8n and APIs (Udemy)
- Engenharia, Preparacao e Visualizacao de Dados (UNISUL)
- Python para Data Science (Alura)
- React JS: testes com Jest e Testing Library (Alura)
- React: migrando para TypeScript (Alura)
- Docker: criando e gerenciando containers (Alura)
More details: CERTIFICATIONS.md
- LinkedIn: linkedin.com/in/maken-da-rosa
- GitHub: github.com/MakenRosa
- Email: maken.cristhian@gmail.com