Freelancers using Next.js in MadridFreelancers using Next.js in Madrid
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Facundo Cappella's avatar
Facundo Cappella
max
Madrid, Spain
Tech Lead | Solution Architect | AI Engineer
122
Followers
Tech Lead | Solution Architect | AI Engineer
Cover image for Landing Page - Tech Company
Landing Page - Tech Company
1
28
Cover image for Landing Page - Ed Tech
Landing Page - Ed Tech Company
1
42
Cover image for Bitcoin Forecast
Bitcoin Forecast
1
0
Cover image for Whitepaper Finder
Whitepaper Finder
1
1
Next.js(6)
Berckan Guerrero's avatar
Berckan Guerrero
max
Madrid, Spain
Senior Full-stack AI Engineer. 14+ years building web stuff.
$10k+
Earned
5x
Hired
5.0
Rating
13
Followers
Senior Full-stack AI Engineer. 14+ years building web stuff.
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
1.2K
Cover image for Pulso (https://heypulso.com): Marketing and sales
Pulso (https://heypulso.com): Marketing and sales website for a web health monitoring service targeting small businesses in Latin America and Europe. Astro 5 static site with Stripe integration (EUR, USD, CLP), geolocation-based currency detection, and Resend API for transactional emails. Trilingual (ES/EN/FR). Four user flows in one site: email campaign recipients see personalized context, organic visitors get a free check CTA, salespeople share payment links, self-service users browse pricing and buy. Contact form via Resend API. Conditional hero based on referral source. 6 pricing tiers from free reports to monthly maintenance. Tone calibrated for Latin American SMBs. Stripe for subscriptions and one-time payments. Currency auto-switches via visitor geolocation.
1
1.1K
Cover image for Pulso (https://heypulso.com): Prospect intelligence platform
Pulso (https://heypulso.com): Prospect intelligence platform that scans 28,000+ websites, scores them across 15 health metrics, and manages outreach from discovery to conversion. Scanner engine audits domains: SSL, performance, security headers, vulnerabilities, malware detection, SEO, accessibility. Each domain scores out of 100. Operations dashboard with prospect tables, inline notes, contact popovers, archiving, AI-generated outreach emails, and detail panels with color-coded health breakdowns. Role-based auth. Automated outreach generates custom reports per prospect via API with actual scores and recommendations. 14 years of web maintenance and optimization went into the scoring logic. Every check reflects real patterns found across hundreds of sites. 40,000+ domains. 15 metrics. Sub-second queries. Under €5/month infra.
1
1.1K
Cover image for Raven: AI-powered knowledge management app
Raven: AI-powered knowledge management app with notes, tasks, and built-in streaming chat. 34 components, 25 composables, 13 Supabase PostgreSQL tables with Row Level Security policies on every table. 12 AI functions including streaming responses, voice input, and automatic conversation titles via Gemini. Full i18n (EN/ES) with offline support and sync queue for unreliable connections. Real-time CRUD, folder organization, and workspace-based content separation. Auth via Supabase with RLS enforcing data isolation between workspaces. Nuxt 4, TypeScript strict mode, Supabase (PostgreSQL, Auth, Storage). Custom instance deployed for a private client with ongoing development.
1
1.2K
Next.js(1)
Esteban Aleart Salas's avatar
Esteban Aleart Salas
pro
Madrid, Spain
Full Stack Dev & SaaS Architect, scalable B2B platforms.
New to Contra
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
53
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
59
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
7
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
13
Next.js(2)
Alex Mamaev's avatar
Alex Mamaev
Madrid, Spain
AI & SaaS Developer with Product Expertise
AI & SaaS Developer with Product Expertise
Cover image for Developing an AI-Powered Tool for Gathering Customer Feedback
Developing an AI-Powered Tool for Gathering Customer Feedback
0
12
Cover image for Developing a Chatbot and Widget for Property Managers
Developing a Chatbot and Widget for Property Managers
0
8
Cover image for Chrome Extension for Scheduling Meetings Globally
Chrome Extension for Scheduling Meetings Globally
0
11
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Next.js(2)
Gonzalo Franco's avatar
Gonzalo Franco
Spain
Software Engineer: Building Awesome Webs Apps & Products
Software Engineer: Building Awesome Webs Apps & Products
Cover image for Lead Engineer, eth-roulette.com
Lead Engineer, eth-roulette.com
0
7
Cover image for CTO, OpenBroker.com
CTO, OpenBroker.com
0
13
Cover image for CTO, Subletny.com
CTO, Subletny.com
0
13
Cover image for Full-stack developer – OB Studio
Full-stack developer – OB Studio
0
8
Next.js(4)
Adrian Rubio's avatar
Adrian Rubio
Madrid, Spain
WordPress & Elementor Expert ✦ Digital Marketing Strategist
WordPress & Elementor Expert ✦ Digital Marketing Strategist
Cover image for Physis Digital - Website Development
Physis Digital - Website Development
0
2
Cover image for Handarholf.com – A Digital Canvas for an Artist’s Identity
Handarholf.com – A Digital Canvas for an Artist’s Identity
0
3
Cover image for Modern Website for a Luxury Barbershop in Madrid
Modern Website for a Luxury Barbershop in Madrid
0
3
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Next.js(1)