Freelancers using TypeScript in MadridFreelancers using TypeScript in Madrid
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Berckan Guerrero's avatar
Berckan Guerrero
maxMadrid, Spain
Founders' Tech Partner | Full-Stack AI Engineer | 14 yrs exp
$25k+
Earned
8x
Hired
5.0
Rating
18
Followers
Founders' Tech Partner | Full-Stack AI Engineer | 14 yrs exp
Cover image for PartSpace: AI-Powered B2B Procurement Platform
PartSpace: AI-Powered B2B Procurement Platform
1
2
3
Cover image for NurvAI: Website Redesign & Development
NurvAI: Website Redesign & Development
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1
Cover image for Pulso: Prospect Intelligence Dashboard
Pulso: Prospect Intelligence Dashboard
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1
Cover image for Raven: AI Knowledge Management Platform
Raven: AI Knowledge Management Platform
1
0
TypeScript(2)
Matias Fourcade's avatar
Matias Fourcade
proSpain
Full Stack Web Engineer & UI/UX Designer
1x
Hired
6
Followers
Full Stack Web Engineer & UI/UX Designer
Cover image for Frontend engineering Upword AI
Frontend engineering Upword AI
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7
Cover image for Webflow Ecommerce
Webflow Ecommerce
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0
17
Cover image for Web design and webflow development
Web design and webflow development
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17
Cover image for Ravenscroft UI/UX designer and webflow development
Ravenscroft UI/UX designer and webflow development
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13
TypeScript(1)
Esteban Aleart Salas's avatar
Esteban Aleart Salas
Madrid, Spain
Full Stack Dev & SaaS Architect, scalable B2B platforms.
New to Contra
Full Stack Dev & SaaS Architect, scalable B2B platforms.
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.
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13
Cover image for TaskManager is a project and task
TaskManager is a project and task management platform that offers tools to organize and assign tasks, track progress, and collaborate with team members. Key Features: * Project and task management * Task assignment and progress tracking * Team collaboration and communication * Productivity reporting and analytics * Integration with calendars and email Advantages: * Simplifies project planning and organization * Enhances team collaboration and communication * Allows for progress tracking and identification of areas for improvement * Provides reports and analytics for informed decision-making
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38
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
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15
Cover image for * Personal Assistant: friendly and intelligent
* Personal Assistant: friendly and intelligent personal assistant, designed to provide helpful and informative responses. * Skills: can understand and respond to questions and has knowledge in a wide range of topics, from technology and programming to history and culture. * Conversation: can engage in real-time conversations, responding to questions and providing helpful information. * Information Search: can search for information from a variety of sources to provide accurate and up-to-date answers. * Learning: Tontin can learn and improve over time, thanks to user feedback and interaction. * Accessibility: is available 24/7, and can be accessed from any device with an internet connection. * Personalization: Tontin can adapt to the needs and preferences of each user, providing personalized and relevant responses.
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22
TypeScript(2)
Javier Martinez's avatar
Javier Martinez
Spain
24/7 AI Automation | Receptionist + Sales + Workflows
New to Contra
24/7 AI Automation | Receptionist + Sales + Workflows
Cover image for AI Agency Website — Full
AI Agency Website — Full Stack + n8n💯
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64
Cover image for Built a full AI consulting
Built a full AI consulting business system — from website to outreach machine. For a boutique AI consulting firm targeting mid-market companies in the US and Europe, I designed and shipped the full technical stack: Production website (React + TypeScript + Express) Not just a landing page. A conversion machine: lazy-loaded routes, per-page SEO metadata, structured data for Google, a sitemap, an OG image for social sharing, and Lighthouse-ready performance fixes (including a Framer Motion LCP bug that was silently tanking search rankings). AI Diagnostic Tool A multi-step lead qualification form that calls Claude under the hood, generates a personalized automation ROI report for each prospect, and delivers it at a unique URL — with prompt injection protection baked in (XML-delimited user inputs, system prompt hardening). Security layer CSP headers, correct trust-proxy config for a Cloudflare + Railway dual-hop topology, hardened email notification logic, and temp file cleanup that survives errors. Production-grade, not tutorial-grade. LinkedIn prospecting engine A Python + Playwright scraper that: Rotates across 10 industry niches Qualifies leads by title, location, and post recency Auto-generates personalized connect requests (≤300 chars) and follow-ups via Anthropic API Exports to Excel, deduplicates across runs Currently targeting Property Management decision-makers in Florida & Texas This is what "full-stack AI consulting infrastructure" actually looks like in practice. What was built A production-ready AI consulting business stack, covering six layers end to end. On the frontend, a React SPA with TypeScript, lazy-loaded routes, per-page SEO metadata via react-helmet-async, and full internationalization in English, Spanish, and Danish. The SEO layer included a sitemap, robots.txt, JSON-LD structured data schemas for Google, a custom OG image at 1200×630px for social sharing, and a performance fix for a Framer Motion bug that was silently blocking the page's Largest Contentful Paint — meaning Google couldn't properly index the main headline. The backend is an Express + TypeScript API deployed on Railway, hardened with Content Security Policy headers, correct trust proxy configuration for a Cloudflare + Railway dual-hop topology, and proper temp file cleanup that survives errors. The AI feature is a multi-step diagnostic form that sends the prospect's business data to Claude, generates a personalized automation ROI report, and delivers it at a unique shareable URL — with prompt injection protection built in so user-submitted text can never hijack the LLM's instructions. On the security side, all user-controlled fields are wrapped in XML delimiters in the prompt, environment variable handling was hardened to eliminate silent fallbacks, and no sensitive data leaks through error paths. Finally, the outreach system is a Python + Playwright scraper that rotates across industry niches, qualifies leads by title, location, and post recency, then uses the Anthropic API to generate personalized LinkedIn connect requests and follow-up messages for each lead — exporting everything to Excel with deduplication across runs. Key technical problems solved LCP blocked by Framer Motion: opacity:0 on H1 prevented Google from indexing the headline. Fixed by rendering plain HTML on first paint. Prompt injection risk: All user-submitted fields wrapped in XML delimiters + system prompt instruction to treat them as data, not commands. Dual-hop proxy misconfiguration: trust proxy: 1 was wrong for a Cloudflare → Railway topology. Corrected to 2 to get real client IPs in logs and rate limiting. Location-aware lead qualification: Scraper's filter system refactored to support per-niche target_locations, enabling pivot from Danish to US markets without touching core logic.
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Cover image for 🚀 We just systematized 100%
🚀 We just systematized 100% of our sales with AI and Automation (and we're looking for top tier talent to run it) At JM Consulting, we don't sell theory; we sell growth systems and AI audits with a strict "ROI-First" approach. To prove it, we just documented our entire internal sales process using artificial intelligence. We've created the Sales Master Playbook v1.0, an operating ecosystem where the sales rep doesn't waste time on manual tasks, but simply "plugs and plays". What have we packaged into this step-by-step system? Everything a Closer or SDR needs to crush their metrics from day one: Aggressive & Clear Commission Structure: Our team earns a 15% commission (1 to 5 closes), 20% (6 to 10 closes), and up to 30% (more than 10 closes per month). The Ultimate Tech Stack: A complete setup integrating Claude, n8n, Apollo, Calendly, and Slack/Telegram. 3 Proprietary AI Agents: The rep gets the exact prompts to install a Lead Qualifier Agent, a Strategist Agent to prepare for calls, and a Closer Agent to generate winning proposals in minutes. n8n Automation Blueprint: The complete workflow, documented node by node. The system automatically prospects, qualifies, sends personalized emails, and pushes alerts directly to Telegram. The 90-Minute Routine: A daily framework where automation does 70% of the heavy lifting, allowing human talent to focus exclusively on calls and closing. Service Catalog & Objection Handling: Precise scripts to sell our AI Opportunity Audits and Quick Wins Sprints, including our signature "Yesterday Morning Method". Who is this for? 👉 If you are a B2B sales professional (Closer/SDR) and want to join a team where technology does the boring prospecting for you, we have a deal for you. 👉 If you want to implement this level of commercial infrastructure in your own company, these are the exact types of systems we build. The key to scaling isn't working more hours—it's having the automation system do the heavy lifting so you can focus on the closing
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Cover image for Yesterday and today we've been
Yesterday and today we've been working intensively on the backend of our B2B prospecting system, and I want to share the results with you. We've gone from a manual and tedious process to an autonomous lead generation machine using n8n, Paperclip, and Apify. What exactly does this ecosystem we built do? 🎯 Surgical Search: Every day, it tracks C-Level profiles (Directors, Leaders, Executives, Consultants) in the Property Management industry (Fast Ejendom). Today, for example, we pivoted the bot's entire memory to focus the strategy 100% on the Danish market 🇩🇰. 🕵️‍♂️ Context Extraction: It doesn't just extract the profile. The system reads the prospect's recent LinkedIn posts to understand what they're currently working on. 🤖 AI-Powered Copywriting: Generate a connection message (under 200 characters, no empty promises) based on their latest post or achievements, and a follow-up message offering our AI-powered Opportunity Audit. 📊 Live Sync: Everything is compiled into a structured spreadsheet with automatic status updates (Connect, Sent, Replied, Not Interested). The "hard work" of researching and copywriting is now done by AI in the background. Our team (and our clients' teams) only needs to focus on what matters: closing meetings and building real relationships. B2B prospecting doesn't have to be a time sink. If your sales team is still copying and pasting generic messages, they're leaving money on the table. What automation tool is saving your life this year? 👇 hashtag#Automation (https://www.linkedin.com/search/results/all/?keywords=%23automation&origin=HASH_TAG_FROM_FEED) hashtag#Artificial (https://www.linkedin.com/search/results/all/?keywords=%23artificial&origin=HASH_TAG_FROM_FEED) Intelligence hashtag#B2B (https://www.linkedin.com/search/results/all/?keywords=%23b2b&origin=HASH_TAG_FROM_FEED) hashtag#LeadGeneration (https://www.linkedin.com/search/results/all/?keywords=%23leadgeneration&origin=HASH_TAG_FROM_FEED) hashtag#n8n (https://www.linkedin.com/search/results/all/?keywords=%23n8n&origin=HASH_TAG_FROM_FEED) hashtag#Apify (https://www.linkedin.com/search/results/all/?keywords=%23apify&origin=HASH_TAG_FROM_FEED) hashtag#B2B (https://www.linkedin.com/search/results/all/?keywords=%23b2b&origin=HASH_TAG_FROM_FEED) Sales hashtag#PropertyManagement (https://www.linkedin.com/search/results/all/?keywords=%23propertymanagement&origin=HASH_TAG_FROM_FEED)
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TypeScript(1)
Sergio Gutierrez's avatar
Sergio Gutierrez
Madrid, Spain
Full Stack Engineer. Building mobile app prototypes.
6
Followers
Full Stack Engineer. Building mobile app prototypes.
Cover image for Some old work of mine: Trufario, an app tracking your dog's ...
Some old work of mine: Trufario, an app tracking your dog's most important events throughout the day to find triggers for your companion's problems. One of the first apps I created from its conception to the stores and still proud of it.
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Cover image for Today's exploration is a redesign of one of my first publish...
Today's exploration is a redesign of one of my first published apps: Trufario, your doggo's personal tracker. Do you have a favorite?
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Cover image for Considering what my next prototype would be. This is today's...
Considering what my next prototype would be. This is today's quick design session exploring the idea of a self-hosted location tracker (bye bye Google Maps Timeline). Wondering if anyone here would like to use it.
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Cover image for A glimpse into my most recently published app for an investm...
A glimpse into my most recently published app for an investment client I had the luck to work with
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66
TypeScript(1)
Josué Cortina's avatar
Josué Cortina
Madrid, Spain
Custom Web Solutions: From Concept to Code
Custom Web Solutions: From Concept to Code
Cover image for Sibucán
Sibucán
0
7
Cover image for Trincico
Trincico
0
7
Cover image for Truckbays
Truckbays
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15
Cover image for SwagUp
SwagUp
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13
TypeScript(4)