Facundo L.

Senior Full-Stack Engineer | React • Next.js • Node.js | AI-Driven Development I’m a Senior Full-Stack Engineer with 9+ years of experience building scalable web and mobile applications. I specialize in React, Next.js, Node.js, and cloud architectures, helping startups and companies build reliable, high-performance products. What differentiates my workflow is an AI-augmented development approach. I leverage tools like Cursor AI and modern LLM-assisted workflows to accelerate development, improve code quality, and deliver production-ready solutions faster while maintaining clean and scalable architectures. I focus not only on writing code, but on designing systems that can grow with your business. I’ve worked across multiple industries building SaaS platforms, complex dashboards, APIs, mobile applications, and scalable backend systems. What I can help you with • SaaS development (MVP to scalable production systems) • Modern React / Next.js applications • React Native mobile apps (iOS & Android) • Backend systems with Node.js / NestJS • GraphQL and REST APIs • Real-time applications (WebSockets, streaming) • Authentication systems (JWT, OAuth, Auth0) • Payment integrations (Stripe) • Performance optimization and Core Web Vitals • Cloud deployment and infrastructure • AI-powered product features and workflows AI-Augmented Development My workflow integrates modern AI tools to increase development speed and reliability: • Cursor AI for contextual development and refactoring • AI-assisted architecture planning • Automated test generation • AI-assisted debugging and code analysis • LLM-driven documentation workflows This allows me to deliver results faster while maintaining senior-level code quality. Frontend React.js Next.js React Native Vue.js TypeScript / JavaScript Redux / Redux Toolkit / RTK Query Tailwind CSS Styled Components Chakra UI Storybook Framer Motion / GSAP Three.js / D3.js / Recharts Backend Node.js Express NestJS GraphQL (Apollo) REST APIs PostgreSQL MySQL MongoDB Prisma Redis RabbitMQ Kafka WebSockets JWT / OAuth Stripe / Twilio Firebase DevOps & Cloud AWS GCP Docker Kubernetes Serverless CI/CD (GitHub Actions / GitLab CI) Vercel Netlify Nginx PM2 Terraform Ansible Testing Jest Cypress Playwright Mocha Chai Supertest TDD I work with a performance-first mindset, focusing on clean architecture, maintainability, and long-term scalability. If you're building a SaaS, scaling a startup, or modernizing an existing product, I’d be happy to help.