Freelancers using AWS in MadridFreelancers using AWS in Madrid
ProjectsPeople
Berckan Guerrero's avatar
Berckan Guerrero
pro
Madrid, Spain
14+ years building fast, accessible web apps. AI Friendly.
$5k+
Earned
5x
Hired
5.0
Rating
11
Followers
14+ years building fast, accessible web apps. AI Friendly.
Cover image for THE SPOT: maintenance and DevOps
THE SPOT: maintenance and DevOps for Germany's leading film industry news platform, built on WordPress with Elementor and Restrict Content Pro. Tiered membership system with premium content gating across 13 industry categories. Built custom PHP plugins for automated VAT calculation and invoice generation supporting 193 countries. Bulk invoice tools for administration. Dynamic test environments with up to five parallel staging copies and blocked outgoing email. PageSpeed improved from 54 to 99 (desktop). GTmetrix from C (74%) to A (93%). Cloudflare CDN/WAF integration, security hardening, privacy-first YouTube embeds, and zero-downtime server/domain migration. Delivered at Yumeda Studio.
1
190
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
684
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
691
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
709
AWS(1)
Esteban Simón's avatar
Esteban Simón
Madrid, Spain
CTO & CPO | Technical Leadership, Digital Product
CTO & CPO | Technical Leadership, Digital Product
Cover image for CTO & CPO - marketplace app
CTO & CPO - marketplace app
0
11
Cover image for CTO & CPO consulting for B2C E-commerce Startup app
CTO & CPO consulting for B2C E-commerce Startup app
0
7
Cover image for CTO & CPO - B2B SaaS web app
CTO & CPO - B2B SaaS web app
0
10
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AWS(1)
Pablo Verdugo's avatar
Pablo Verdugo
Spain
Software Engineer - Automation Specialist
Software Engineer - Automation Specialist
Cover image for From Freelancer to Startup: Journey in Web Scraping & Automation
From Freelancer to Startup: Journey in Web Scraping & Automation
0
10
Cover image for Automating Real Estate Scheduling with WhatsApp
Automating Real Estate Scheduling with WhatsApp
0
20
Cover image for Chrome Extension saves hundreds of hours of data entry work
Chrome Extension saves hundreds of hours of data entry work
0
15
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AWS(1)
Harry Pavis's avatar
Harry Pavis
Madrid, Spain
Creative Webflow Development & Website SEO
WEBFLOW_EXPERT

Certified Partner

Creative Webflow Development & Website SEO
Cover image for Hound Marketing | Webflow Development
Hound Marketing | Webflow Development
0
5
Cover image for The Dark Union
The Dark Union
0
4
Cover image for Baumann | Webflow Development
Baumann | Webflow Development
0
8
Cover image for Accurise | Webflow Development
Accurise | Webflow Development
0
9
AWS(2)
Fernando Ospina's avatar
Fernando Ospina
Madrid, Spain
Passionate tech enthusiast
Passionate tech enthusiast
Cover image for Snowflake Data Pipeline Project
Snowflake Data Pipeline Project
0
11
Cover image for US Census Data Visualisation
US Census Data Visualisation
0
16
Cover image for OECD COVID-19 Dashboard
OECD COVID-19 Dashboard
0
9
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AWS(1)
Gonzalo Franco's avatar
Gonzalo Franco
Spain
Software Engineer: Building Awesome Webs Apps & Products
Software Engineer: Building Awesome Webs Apps & Products
Cover image for CTO, Subletny.com
CTO, Subletny.com
0
13
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 Product Manager, Full-stack Engineer, CleanHero
Product Manager, Full-stack Engineer, CleanHero
0
5
AWS(1)