Hire the Best TypeScript Developers
in Spain

Frontend developer with 8+ years of experience, specializing in Vue.js and modern JavaScript/TypeScript ecosystems. Freelancing since 2018, building web applications for clients worldwide. Proven track record of inheriting complex legacy codebases and delivering clean, maintainable Vue 3 migrations. Currently integrating AI tooling (Cursor, Claude Code) into development workflows to accelerate delivery while maintaining code quality. Working knowledge of backend technologies (Node.js, NestJS, PHP/Laravel) when full-stack support is needed. Skills Vue 3, Vue 2, Composition API, Options API, TypeScript, JavaScript, Vuetify, Pinia, Vuex, Vue Router, TanStack Query, VueUse, Vite, Webpack, npm, Git, Vitest, Unit Testing, Component Testing, UI & Data Visualization Vuetify, Material Design, Chart.js, Responsive Design, CSS, SCSS/Sass, Ionic (Mobile Development), Auth0, OAuth, REST APIs, Axios, WebSockets, Stripe, Node.js, Express, NestJS, PHP, Laravel, MongoDB, MySQL, Cursor, Claude Code, AI assisted development, AI workflows. Speak spanish and english. Flexible schedule.

I build and maintain production web applications. I'm a full-stack developer with a strong frontend focus (Next.js / React) and solid backend foundations. I work comfortably across the entire stack: authentication, databases, file storage, real-time updates, background jobs, deployments, and long-term maintenance. Recently, I've built and shipped: - A document management system for a construction company using Next.js, Supabase (Auth, Storage, Realtime), PostgreSQL, Edge Functions, cron jobs, and Dockerized infrastructure - Multiple live business websites delivered end-to-end as a sole developer (design integration, frontend, backend, deployment, and ongoing support) I'm used to working with: - Real data, not mockups - Edge cases, permissions, loading states, and failures - Existing codebases that need improvement, not rewrites 🛠 What I'm especially good at - Turning designs into robust, usable UIs - Building clean, maintainable full-stack architectures - Authentication flows, roles, and permissions - File uploads, background processing, and real-time updates - Owning features from idea → production → iteration 💻 Tech I work with daily - Next.js - React - TypeScript - JavaScript - Tailwind CSS - Supabase (Auth, Storage, Realtime, PostgreSQL, Edge Functions) - PostgreSQL - MySQL - MSSQL - Docker - REST APIs - Background in .NET Core / C# (strong backend and system design foundation) 🤝 How I work I communicate clearly, work async-friendly, and don't need hand-holding. If something in the design or requirements doesn't make sense, I'll flag it early and propose a solution. Happy to discuss your project and see if we're a good fit. 🔎 Keyword List Full-stack developer, web application development, Next.js developer, React developer, TypeScript, JavaScript, Supabase, Supabase Auth, Supabase Realtime, Supabase Storage, PostgreSQL, Postgres, database design, REST APIs, API integration, authentication, authorization, role-based access control, file upload, background jobs, cron jobs, real-time updates, Docker, containerization, production applications, SaaS development, dashboard development, admin panels, UI development, responsive design, system design, .NET Core, C#, backend development, frontend development, maintenance and support, existing codebase, long-term collaboration

👋 I help startups and agencies bring their web software projects from idea to completion. Whether you need help starting a new project for your company/client, or you're looking for somebody to take on your existing project, you're in the right place. The types of project I usually work on are business management tools. Think Stripe, Trello, tools. Platforms where users can visualize, manage, and update their data. The application allows them to process their data: automating repetitive tasks, connecting services, they can have multi-user workflows et-cetera. These applications have complex databases to describe different business objects that the application needs to be able to create, read, update, and delete information. They often deal with a lot of dynamic data that changes over time. Creating this complex business logic is a core part of the work that I do. I excel best if you need one person who can work and take responsibility for the entire life cycle of your application(s). The core technologies I work with are Next.js, Nest.js, TypeScript, and SQL. Around that stack, I work with a wide range of different cloud services, libraries, ORM, and third-party API's and tools 💬 I'm online right now . 👋

Senior Vue.js and JavaScript developer with 10+ years of experience building, refactoring, and scaling frontend applications using Vue, Nuxt, React, Angular, and TypeScript. I specialize in frontend architecture, design systems, and legacy codebase refactoring for startups and product-driven teams. A large part of my work involves taking ownership of existing codebases, improving structure and performance, and helping teams move faster without accumulating technical debt. I’ve worked with distributed teams across the US and Europe on SaaS, fintech, and data-driven products — contributing to component libraries, migrating large Vue applications to Nuxt, stabilizing Angular and React systems, and mentoring developers on best practices. What clients typically hire me for: - Refactoring and modernizing legacy frontend codebases - Designing and maintaining scalable design systems and component libraries - Frontend architecture decisions in startups and enterprise - Vue 3 / Nuxt / React / Angular development with TypeScript - Long-term product engineering and technical ownership Core Technology Stack Frontend: JavaScript, TypeScript, Vue 2/3, Nuxt.js, React, Angular, Pinia / Vuex
 Backend: Node.js, REST APIs, Stream API’s , WebSockets
Styling: HTML5, CSS3, SASS, Tailwind CSS, Bootstrap, Shadcn , Lottie-js 
 Product & Analytics: Mixpanel, 
AI Tooling: Cursor, Claude code, AI Agents, Copilot, N8N
 Workflow: Git (GitHub, GitLab, Bitbucket), Jira, Trello, Notion, Agile/Scrum Why clients work with me: - I take ownership of existing systems and improve them, not just add features - I’ve been refactoring and stabilizing legacy frontend codebases since 2015 - I communicate clearly with founders, designers, and engineers - I focus on maintainability, performance, and long-term scalability I’m flexible with time zones, comfortable working with distributed teams, and happy to take responsibility beyond my immediate scope — especially in startup environments where impact and adaptability matter.


𝟱+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗰𝗿𝗲𝗮𝘁𝗶𝗻𝗴 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗴𝗮𝗺𝗲𝘀 𝗳𝗼𝗿 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗮𝗻𝗱 𝗽𝗹𝗮𝘆𝗲𝗿𝘀🚀 𝗕.𝗦. 𝗶𝗻 𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗳𝗿𝗼𝗺 𝗘𝗨🏅𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 𝗨𝗻𝗶𝘁𝘆, 𝗣𝗵𝗮𝘀𝗲𝗿🕹️𝗖𝗿𝗮𝗳𝘁𝗶𝗻𝗴 𝗶𝗺𝗺𝗲𝗿𝘀𝗶𝘃𝗲 𝗴𝗮𝗺𝗲𝘀 𝗳𝗼𝗿 𝗣𝗖, 𝘄𝗲𝗯 𝗮𝗻𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 🎮 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱✨ I'm an expert Game Developer focused on helping clients bring their creative ideas to life through engaging, high-quality games. My goal is to understand your vision, translate it into compelling gameplay, and deliver a polished final product that meets your audience’s expectations. What I Offer: ✓ Complete Game Development: From concept to launch, I handle design, coding, and optimization for both 2D and 3D games. ✓ Cross-Platform Expertise: I develop for PC, Web, and Mobile, ensuring your game reaches players wherever they are. ✓ Engaging Gameplay Systems: Whether you need real-time action, strategy mechanics, or multiplayer experiences, I can design systems that keep players hooked. ✓ Multiplayer Game Development: Proven experience building real-time and turn-based multiplayer systems using both peer-to-peer (P2P) and server-authoritative models, with features like matchmaking, lobbies, chat, and leaderboards. ✓ Multiplayer Frameworks: Skilled with Mirror, Photon, SocketIO, and Colyseus, delivering scalable, secure, and responsive online gameplay. ✓ Game Engines: Deep expertise in Unity, Unreal, and Godot, choosing the best tool for each project’s needs. ✓ HTML5 Playable Ads: Fast-loading, interactive ads built for Google, Meta, TikTok, and Unity Ads. ✓ Web Game Frameworks: Specialized in Phaser, Babylon.js, Three.js, PixiJS, and CreateJS for modern, high-performance browser games and interactive web experiences. ✓ Backend Solutions: I can integrate APIs, databases, and cloud services for online features and scalability. ✓ Clean Code & Architecture: I follow SOLID principles, modular design, and maintainable architecture to ensure code that’s efficient, scalable, and easy to extend, saving you time and costs in the long run. ✓ Art, Animation & Audio Integration: I collaborate with artists, animators, and sound designers to ensure every visual and sound enhances player immersion. ✓ Testing & Optimization: I prioritize performance, stability, and smooth gameplay across all target devices. I deliver projects on time, within budget, and with clear communication throughout development. Every project is an opportunity to build something memorable together, something that players will love and you’ll be proud to publish. 🚀 Ready to bring your game to life? Let’s talk about your project and how we can make it stand out.

100% Job Success | Top Rated | 5.0★ Average I build production-ready products: SaaS, mobile apps, marketplaces, AI systems. Real software that real users depend on. Full stack ownership: Next.js + React Native + Node.js + Supabase + Claude API + Stripe. WHAT I BUILD 📱 Mobile Apps (React Native + Expo EAS) — WAYO (AI fitness app with auth, image analysis, premium features) 💼 SaaS Platforms (Next.js + TypeScript + Supabase) — FocusResetNow (AI dashboard, real-time, Edge Functions) 📅 Booking Systems (Calendar + Stripe payments + admin panels) 🏪 Marketplaces (GIS-based, complex pricing, buy/sell/rent logic) 🤖 AI Features (Claude + OpenAI: image analysis, content generation, automation) 💳 Payments (Stripe: Checkout, subscriptions, Connect payouts, usage metering) 🔗 Integrations (Make, n8n, CRM, Vapi.ai, Twilio, email/SMS) TECH STACK Next.js 15 | React 18 | React Native (Expo) | TypeScript | Node.js | Supabase (PostgreSQL + Edge Functions) | Firebase | Stripe | Claude API | OpenAI | LangGraph | Mapbox | Redis | Vercel | AWS SHIPPED ✓ WayoAi: Full React Native app (auth, AI processing, premium tier) ✓ FocusResetNow: SaaS platform (Next.js + Supabase + Claude), 5.0★ ✓ Booking platform: Payments + calendar + admin, 5.0★ ✓ Marketplace MVP: GIS, complex logic, 5.0★ ✓ AI document automation: PDF extraction → Excel ✓ eSIM e-commerce: Full checkout + order management ✓ Transport booking: Real-time availability WHY I'M DIFFERENT ✓ Complete products, not partial code ✓ Ownership (architecture → deployment) ✓ System design for scale ✓ Fast execution, no technical debt ✓ Proven: 10 jobs, 100% success, consistent 5.0★ Looking for: Startups needing ownership-level developers. Fast MVPs. Products with AI, payments, real-time features. Native Spanish, professional English. Flexible time zones. Let's ship.