Freelancers using Next.js in MadridFreelancers using Next.js in Madrid
Fullstack Developer & Framer Expert
    $10k+
    Earned
    18x
    Hired
    5.0
    Rating
    331
    Followers
Fullstack Developer & Framer Expert
Senior AI & Web Developer
    $50k+
    Earned
    10x
    Hired
    5.0
    Rating
    35
    Followers
Senior AI & Web Developer
Cover image for SpeedDoc: AI-powered web performance optimization
SpeedDoc: AI-powered web performance optimization tool that scans websites, diagnoses bottlenecks, and generates ready-to-implement fix code. Not generic Lighthouse advice: actual code patches developers can copy and apply directly to their codebase. Built as part of a Vercel AI Accelerator application. Scans run against live URLs, identify specific performance issues (render-blocking resources, unoptimized images, layout shifts), and return targeted fixes with before/after impact estimates. Next.js 16, TypeScript, Tailwind 4, Vercel. Personal project.
1
1.9K
agencra.xyz - Automated Pipelines. Ship in days, not weeks.
    $•••••
    Earned
    27x
    Hired
    5.0
    Rating
    13
    Followers
agencra.xyz - Automated Pipelines. Ship in days, not weeks.
Cover image for Concordium — Supply Chain &
Concordium — Supply Chain & Testnet Infrastructure We delivered two blockchain projects for Concordium: a supply chain track-and-trace system and a testnet faucet. Track-and-trace: - Built a CIS-3 NFT smart contract (Rust) for product tracking. - Added sponsored transactions so users don’t need to hold tokens. - Implemented an indexer to track all on-chain movements in real time. - Shipped a full frontend and Docker-based infrastructure. Testnet faucet: - Developed a Next.js faucet with Cloudflare Turnstile bot protection. - Added per-address daily limits and balance checks via the explorer API. - Provided complete documentation for deployment and maintenance. Outcome: - Both systems production-ready and actively used. - 92 combined commits, clean architecture, ready-to-reuse patterns. This case shows our ability to ship end-to-end blockchain solutions—smart contracts, infrastructure, and UX—in one go.
1
132
Cover image for Yield-Nexus — Real-Time Crypto Portfolio
Yield-Nexus — Real-Time Crypto Portfolio & Trading Platform We built Yield-Nexus as a real-time crypto portfolio and trading dashboard aggregating data across Binance and Bybit. Traders needed a unified view of spot holdings, futures positions, and PnL without switching between exchange consoles.
1
126
Tech Lead | Solution Architect | AI Engineer
    139
    Followers
Tech Lead | Solution Architect | AI Engineer
Cover image for 🚀 New promotional video for
🚀 New promotional video for my experimental project: Orbital Forecast 🛰️ Every day, An agent is forecast the Bitcoin’s closing price. The project combines AI forecasting with a futuristic orbital-space interface. 🎥 Promotional video created with Seedance 2.5. 🔗 Check out Orbital Forecast (https://btc-forecast.vercel.app/?utm_source=chatgpt.com)
1
220
Cover image for Post your ideas, or random
Post your ideas, or random thoughts anonymously. Get ratings and opinions from people everywhere, no sign-up. https://rateidea.us/
0
171
Cover image for Create Stunning Custom Banners with This Easy Canva Alternative
Hello, I just built a simple tool similar to Canva that lets you create custom banners. I originally made it for personal use, but I decided to make it public in case it could be useful for others. Feel free to use it, and if you have any suggestions or feedback, I’d really appreciate it. https://ln-banner-generator.vercel.app/
0
278
Cover image for Landing Page - Tech Company
Landing Page - Tech Company
1
273
Senior Product Designer + Front-end for SaaS, Fintech & B2B.
    1x
    Hired
    21
    Followers
Senior Product Designer + Front-end for SaaS, Fintech & B2B.
AI & SaaS Developer with Product Expertise
AI & SaaS Developer with Product Expertise
Full Stack Dev & SaaS Architect, scalable B2B platforms.
Full Stack Dev & SaaS Architect, scalable B2B platforms.
Cover image for TicketXEvent is a web platform
TicketXEvent is a web platform for event ticketing designed to streamline the discovery, purchase, and management of event tickets. The system allows users to browse upcoming events, view details and complete secure purchases with a seamless, user-friendly experience. Designed and implemented a responsive frontend interface with intuitive navigation and interactions. Built a scalable backend to handle event data, user authentication, and transaction processing. Integrated secure payment workflows and order management systems. Ensured performance optimization and maintainability through clean architecture and modular code. Delivered well-documented, production-ready code suitable for continuous enhancements. Tech stack highlights: React/Next.js, Node.js, API integrations, responsive design, secure transaction flows.
0
65
Cover image for Lyons One is a web‑based
Lyons One is a web‑based CRM built for managing leads in an educational platform headquartered in Uruguay. The project focuses on streamlining lead capture, tracking, and conversion processes through intuitive admin tools and clear performance metrics. Key features include: Lead registration and segmentation by source, interest, and status Conversion pipeline visualization Lead search, filter, and activity tracking Analytics to improve lead generation and follow‑up strategies Technologies used: Next.js, React, Node.js, PostgreSQL, Tailwind CSS My role encompassed full‑stack architecture design, frontend and backend development, implementation of real‑time data features, and deployment.
0
73
Cover image for Nakama (wearenkm.com (http://wearenkm.com)) es un
Nakama (wearenkm.com (http://wearenkm.com)) es un ecosistema de consultoría y desarrollo enfocado en la creación de productos digitales escalables. Trabajamos con startups y empresas en crecimiento para diseñar, construir y evolucionar plataformas web, SaaS y soluciones basadas en inteligencia artificial. Nuestro enfoque combina desarrollo full stack (JavaScript, React, Next.js), arquitectura de sistemas e integración de tecnologías modernas como APIs, automatización y modelos de IA (embeddings, RAG), permitiendo transformar ideas en productos sólidos y preparados para crecer. Más que desarrollo, en Nakama aportamos visión técnica y de producto, ayudando a tomar decisiones estratégicas que eviten deuda técnica y aseguren escalabilidad a largo plazo.
0
41
Cover image for Parabola is a no-code automation
Parabola is a no-code automation platform that allows users to create custom workflows and automate tasks without requiring extensive coding knowledge. The platform provides a visual interface for designing workflows, integrating with various apps and services, and automating tasks. Key Features: * No-code workflow automation * Visual interface for designing workflows * Integration with various apps and services * Customizable workflows * Automation of repetitive tasks
0
45