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teuzowebdeveloper9/README.md

Mateus da Silva Oliveira

Full Stack Developer focused on building reliable products across frontend, backend, cloud, and AI-enabled workflows.

I work on modern web applications with strong emphasis on React/Next.js on the frontend and TypeScript/Node/NestJS, Java/Spring Boot, and C#/.NET on the backend. My experience includes scalable APIs, SSR applications, data-intensive systems, cloud environments, Docker-based delivery, and production-focused engineering.

I am especially interested in roles where software quality, ownership, and execution matter: product engineering, platform work, backend-heavy full stack development, and teams that value clean architecture, performance, and operational reliability.

Core Strengths

  • Full stack development with React, Next.js, TypeScript, Node.js, and NestJS
  • Backend design with API architecture, domain modeling, integrations, and data workflows
  • Practical experience with PostgreSQL, MongoDB, MySQL, and Supabase
  • Production-minded engineering with Docker, CI/CD, cloud services, and performance concerns
  • Applied AI work involving LLM integrations, RAG, agents, embeddings, and streaming pipelines
  • Strong focus on maintainability, clean code, testing, and predictable delivery

Selected Experience Areas

  • Built and evolved full stack products in fast-moving environments with responsibility across architecture and execution
  • Delivered backend services and integrations for B2B and SaaS systems with emphasis on reliability and scalability
  • Worked on high-traffic digital products involving SSR, performance optimization, and production support
  • Contributed to AI platforms with multi-agent workflows, custom tooling, and operational improvements

Technologies

TypeScript JavaScript React Next.js Node.js NestJS Java Spring Boot C# .NET PostgreSQL MongoDB MySQL Supabase Docker CI/CD GCP Cloudflare REST APIs Webhooks SSR RAG LLMs

What I Optimize For

  • Shipping useful software without sacrificing maintainability
  • Understanding existing systems before changing critical flows
  • Balancing speed, technical quality, and production stability
  • Writing software that is easier to evolve, observe, and operate

Links

Pinned Loading

  1. full-stack-project full-stack-project Public

    JavaScript 1

  2. my-new-portfolio my-new-portfolio Public

    TypeScript

  3. chatbot-csharp chatbot-csharp Public

    TypeScript

  4. api-itau api-itau Public

    JavaScript

  5. carti-back carti-back Public

    TypeScript

  6. carti-front carti-front Public

    TypeScript