Freelance Fullstack Engineers in MadridFreelance Fullstack Engineers in Madrid
Fullstack Developer & Framer Expert
    $10k+
    Earned
    18x
    Hired
    5.0
    Rating
    330
    Followers
Fullstack Developer & Framer Expert
agencra.xyz - Automated Pipelines. Ship in days, not weeks.
    $•••••
    Earned
    27x
    Hired
    5.0
    Rating
    14
    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.
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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.
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Tech Lead | Solution Architect | AI Engineer
    140
    Followers
Tech Lead | Solution Architect | AI Engineer
Cover image for https://dealy.figma.site/ 

Latest Updates 🚀
📍 Improved
https://dealy.figma.site/ Latest Updates 🚀 📍 Improved User Location Accuracy The map now centers precisely on the user's current location. Increased zoom levels make it much easier to identify the exact position and nearby points of interest. 🌐 Domain Update Renamed the domain to better reflect the application's purpose and branding. Tech Stack Supabase Next.js Skills & Focus Areas UI/UX Design Next.js Best Practices Geolocation & Mapping Frontend Performance Optimization Small improvements like these can make a significant difference in usability and overall user experience.
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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/
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Fullstack Engineer: AI-Driven Solutions
    12
    Followers
Fullstack Engineer: AI-Driven Solutions