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I’m a Full Stack JavaScript Developer specializing in building fast, scalable, and high quality applications using modern technologies such as React, Next.js, Vue, Node.js, Express, and Nest.js. I help businesses transform ideas into polished digital products by delivering robust backend architecture and clean, responsive user interfaces. I bridge both sides of development front end elegance and backend reliability to create seamless end to end experiences. What I Bring to the Table ⚡ Full-Stack Application Development From UI to database, I build complete, scalable systems using MERN, Next.js, Vue, and Nest.js. 🎨 Modern Front-End Engineering Pixel perfect interfaces, reusable components, and high performance UIs using React, Next.js, Vue, Tailwind, Shadcn UI, and Material UI. 🔧 Backend & API Development Secure, scalable REST APIs and backend logic using Node.js, Express, Nest.js, and TypeScript. 💾 Database Architecture & Management Efficient schemas and optimized queries with MongoDB, PostgreSQL, and MySQL. 📦 Embeddable & Modular Components Experience building widgets and micro components that work across platforms. 🚀 End to End Ownership Planning, architecture, implementation, testing, and deployment delivering complete solutions, not just code. Experience & Highlights Built full real-estate platforms with property management, media uploads, and embeddable components. Developed complete backend systems with authentication, real time features, cron jobs, and integrations. Delivered fast, SEO friendly front end applications with Next.js and modern component libraries. Designed and deployed scalable data models across SQL and NoSQL databases. Why Clients Work With Me Clean, maintainable code built for long-term growth Strong communication and proactive problem-solving Ability to transform vague concepts into structured, production-ready solutions Commitment to performance, UX, and scalability If you're looking for a Full Stack developer who can handle both the big picture and the technical details while delivering fast, reliable results I’d be excited to help bring your project to life.

I take your app from Figma to production — one senior developer, no coordination overhead • Top Rated • React Native & Node.js • Apps in Production I build mobile apps that handle real complexity: offline-first data sync, real-time WebSocket integrations, complex authentication flows, payment systems, and AI-powered features. On the backend I work with Supabase (Postgres, Auth, Edge Functions) and Node.js/Express when a custom API is needed. I also work with MongoDB for document-oriented projects. When the project needs web, I deliver with React, Next.js (App Router), and the same quality bar. Shipped and running: - Social marketplace app: 5-year engagement, real-time chat, bidding system, Google/Apple OAuth, Twilio SMS (React Native + Parse/MongoDB) - EV fleet management: cross-platform mobile + web, API optimization from 5-8s → < 1s, CI/CD from scratch, test coverage 30% → 98% (React Native) - Expense tracker: offline-first SQLite sync, AI receipt scanning (Gemini), Stripe payments, multi-currency settlement engine — live on Play Store and as PWA (React Native + Expo + Node.js) - DEX arbitrage dashboard: real-time WebSocket price feeds, Uniswap/SushiSwap, candlestick charts (React Native + ethers.js) - Client portal SaaS: multi-tenant, role-based access, real-time messaging, file sharing, i18n, dark mode (Next.js + Supabase) Mechatronics engineering background — I think in systems, not just screens. Startup experience at Luna DNA (genomics/healthcare) and Nuvve (EV fleet management). 6+ apps on Play Store. 100% Job Success comes from asking the right questions before writing a single line of code. You handle the vision. I design, build, and ship the system behind it. Message me your project's biggest challenge —I'll tell you how I'd approach it.

I am a senior Full-Stack Engineer and AI Engineer with 10+ years of experience designing, building, and shipping production AI products and scalable web platforms end to end. I specialize in turning complex ideas into reliable systems - from LLM integrations and RAG pipelines to SaaS platforms with React frontends and Python or Node.js backends. What I do best is bridge the gap between AI prototyping and production. I do not just build demos. I design systems that handle edge cases, cost constraints, performance targets, and long-term maintainability. - 60+ production AI and full-stack products delivered (SaaS, MVPs, RAG systems, AI agents) - 40+ LLM integrations and AI automation projects shipped to production - MVP to production in 4-8 weeks | Mexico-based | Bilingual (English / Spanish) | US time zone overlap If you are building: - A GPT or LLM-powered SaaS application - A RAG-based knowledge system with vector search - An AI agent platform or automation workflow - A React or Next.js product with Python or Node.js backend - A production-ready MVP or multi-tenant SaaS architecture I can architect and deliver it correctly from day one. ROLES I TAKE ON (10+ YEARS EXPERIENCE) - AI Engineer / AI Developer - LLM integrations, RAG systems, AI agents, automation workflows - Full-Stack Engineer / Full Stack AI Engineer - end-to-end AI and web platforms - RAG Developer / LLM Application Developer - vector search, knowledge bases, semantic search - React Developer / Next.js Developer - production UI for AI and SaaS products - Python Developer / FastAPI Developer - backend systems, AI APIs, data pipelines AI ENGINEERING AND GENERATIVE AI - OpenAI, GPT-4, Claude, and Gemini LLM integration - Retrieval-Augmented Generation (RAG), semantic search, Pinecone, ChromaDB, pgvector - AI agents, LangChain, LangGraph, MCP servers, n8n and Zapier automation - AI chatbots, copilots, document intelligence, and knowledge base systems - Prompt engineering, structured JSON outputs, and cost-aware token optimization - Human-in-the-loop systems for critical AI tasks FULL-STACK ENGINEERING - React, Next.js, TypeScript, Tailwind CSS, and modern frontend architecture - Python (FastAPI, Django) and Node.js (Express, NestJS) backend development - REST APIs, GraphQL, WebSockets, auth, multi-tenant SaaS, and Stripe billing - PostgreSQL, MongoDB, Redis, Supabase, AWS, Docker, CI/CD, and Vercel deployment - Legacy modernization: monolith to microservices, jQuery to React, PHP to Python/Node INDUSTRIES I SERVE - AI Startups, SaaS, and Internal Tools - Healthcare and MedTech, FinTech, E-commerce - PropTech, EdTech, and LegalTech HOW I WORK I think like a product engineer and AI architect. Before writing a line, I align on the business outcome and what the AI must do reliably. Then I ship in weekly demos and stay available on Slack for fast turnaround. Typical cycle: discovery and scoping (2-3 days), architecture, weekly sprints with demos, production launch (CI/CD, monitoring), and post-launch support. WHY CLIENTS HIRE ME - End-to-end ownership - AI logic, UI, API, vector search, and deployment - Production AI expertise - built for real users and real cost constraints - Full-stack depth - one engineer who ships the entire product - Nearshore advantage - US time zone overlap, fluent English and Spanish - Clear communication, weekly demos, and long-term partnership Whether you need a RAG system, an AI agent platform, LLM integration in your SaaS product, or a full AI-powered platform from scratch - I can help. Click "Invite" or send your brief. Happy to jump on a quick call before writing a single line of code. KEYWORDS Python, Django, FastAPI, Flask, TensorFlow, PyTorch, R Programming, Node.js, Next.js, GraphQL, PostgreSQL, MySQL, MongoDB, Neo4j, PHP, Laravel, Vector Database, JavaScript, TypeScript, Tailwind CSS, HTML, CSS, Bootstrap, React, Vue.js, Dashboard, Heatmap, Hugging Face, LangChain, OpenAI, Claude

I am a skilled Web developer specializing in front-end technologies such as React JS, showcasing advanced proficiency in JavaScript. In the realm of back-end development, I excel in working with Node.js and leveraging relational databases like MySQL. Moreover, my expertise extends to Java programming, and I am currently expanding my knowledge by delving into the Spring Framework, with the goal of becoming a proficient Java Fullstack developer.

Full Stack Developer with 8+ years building production applications—from startup MVPs to enterprise solutions. I specialize in React/Next.js front-ends with Node.js backends, delivering fast, scalable, and maintainable code. What I Build: → E-Commerce & Payments Custom storefronts with Stripe integration Subscription billing and checkout optimization Inventory management systems → SaaS & Web Applications User authentication (JWT, OAuth, role-based access) RESTful APIs and database architecture Admin dashboards and analytics → Performance & Optimization Page load speed improvements Database query optimization Code splitting and caching strategies Tech Stack: React • Next.js • TypeScript • Node.js • Express • PostgreSQL • MongoDB • Prisma • Tailwind CSS • Stripe • AWS • Vercel What Sets Me Apart: Currently training AI models at Scale Labs—I understand where software is heading Bilingual (English/Spanish) for seamless communication B.S. in Software Engineering I don't just code—I solve business problems From concept to deployment, I deliver complete solutions. Let's build something great.

Hello, I build complete web systems and desktop applications that go into real production. My most significant project is SIA (Integral Academic System) — a full-stack institutional platform built with React, Node.js, and PostgreSQL, currently in active daily use at an educational institution. I also have a Python billing system running in production, and I'm developing CyberManager, a desktop app for cybercafe management built with C#, .NET 8, and SignalR. What I can build for you: — Full-stack web applications (React + Node.js + PostgreSQL) — Develop web pages — Admin panels and internal management systems — Desktop applications (C# / .NET or Python) — REST APIs and database design — Real-time features and local network systems Stack: JavaScript, React, Node.js, Express, PostgreSQL, Python, C#, .NET 8, HTML5, CSS3, SQL. Based in Nuevo León, México — available full-time and responsive within a few hours.