Hi! I'm Douglas Queiroz, a 17-year-old passionate fullstack developer building scalable, modern, and user-focused web applications from end to end. As a freelancer, I create complete solutions: robust backends with NestJS/Node.js + PostgreSQL, and interactive frontends with React/Next.js + TypeScript — always prioritizing clean code, performance, security, and seamless user experiences.

My mission? Deliver high-impact fullstack products that solve real problems, scale effortlessly, and bring measurable value to clients and communities worldwide. I'm obsessed with learning, collaborating, and turning ideas into production-ready apps.

• Fullstack Web Apps: End-to-end development — React/Next.js (SSR, app router, hooks, state management) for responsive UIs + NestJS/Node.js for secure, performant APIs and business logic.
• Powerful APIs & Backends: RESTful/GraphQL APIs with TypeScript/NestJS, authentication (JWT/OAuth), microservices, SQL/NoSQL integration (PostgreSQL, Supabase), and Docker for consistent environments.
• Frontend Excellence: Modern interfaces with React/Next.js, TypeScript, Tailwind/CSS-in-JS, responsive design, and integrations (dashboards, auth flows, real-time features).
• DevOps & Deployment: Docker containers, AWS basics, GitHub workflows, CI/CD, and clean documentation for easy handoff and scaling.
• Professional Delivery: Tested code, detailed docs, transparent communication via GitHub, and respect for deadlines.

• True Fullstack Vision: I handle both frontend (React/Next.js UIs) and backend (NestJS APIs + DB) — no handoffs needed, faster iterations.
• Real Projects & Portfolio: Check my GitHub for fullstack examples — petshop (frontend + backend), sistema-hospitalar (frontend + Supabase API), pascom-mineirolandia-frontend, and more. Explore repositories here!
• Clean & Scalable Code: Tested, documented, and built for growth — with focus on maintainability and performance.
• Client-First Mindset: Tailored solutions, clear communication, and results that drive business impact.
• Competitive Pricing + High Value: Quality fullstack work at accessible rates for startups, freelancers, and growing projects.
• Certifications: AWS, Google Data Analytics, Project Management, Cybersecurity — proving discipline and broad knowledge.

Ready to build a complete, production-ready web app? Let's chat — freelance, collaborations, or just geek out about code!