Projects · Case studies
Production projects
Systems I designed, built and shipped to production: electronic invoicing, digital signature, wallet-based loyalty and AI automation. Each case study covers the problem, what I built, the stack and the technical decisions behind it.
Platforms and websites

Fintech · SaaS · SEO
FactuPlan
Electronic-invoicing platform for Ecuador's SRI
Multi-tenant SaaS platform for electronic invoicing against Ecuador's tax authority (SRI). I worked on the product frontend and on the whole site that sells it: blog, SEO structure, measurement in Google Analytics and Search Console, and the funnel that turns visits into customers.
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Digital signature · Cryptography · SEO
FirmaOK
PDF digital-signature suite that runs fully offline
PDF digital-signature suite (PAdES-B): sign and validate with .p12 certificates without the file ever leaving the device. Beyond the product, I worked on the site: blog, page architecture, Schema.org structured data and measurement of the funnel down to the download.
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AI · Automation
Azirbot
AI sales agent for Instagram, Facebook and WhatsApp
AI sales agent that answers Instagram and Facebook comments, opens the DM and moves the follower to WhatsApp with the lead already captured and scored.
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E-commerce · Services · Local SEO
Rolo Electronics
Store, blog and service pages with an admin panel and measured SEO
Complete platform for a security-electronics business in Connecticut and New York: online store, blog, service and city pages, inspection booking, and an admin panel with first-party analytics, Search Console and GA4.
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E-commerce · B2B
Corporativo Siglo 21
Corporate platform to buy and rent technology
Corporate ecommerce with separate buy and rent flows over a single inventory, an admin dashboard, and an architecture built for more than 5,000 monthly users.
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Corporate site · Health
NutriMC Group
Nutrition services with booking and online courses
Site for a group of nutritionists: service catalog by specialty, patient appointment booking and an online course store, all in one place.
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Corporate site · Events
PartyCrew
Event services and booking for New York
Site for an events company in New York: service catalog, online booking, dedicated pages per event type and a structure ready to scale into new cities.
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Tourism · SEO
Casa Grande Resort
Resort site built on local and intent SEO
Complete site for a family resort in Pedro Carbo: 20+ pages, its own blog, Resort structured data and an architecture built around how people actually search for a day trip near Guayaquil.
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Mobile apps in production

Loyalty · Wallets
Semillapp
Digital coupons and loyalty with Apple and Google Wallet
Coupons and loyalty platform with Apple Wallet and Google Wallet passes, a GraphQL API and a React Native mobile app published on both stores.
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Mobile app · B2B
Siglo 21
B2B app for buying technology products
Mobile app for iOS and Android that lets wholesale clients buy technology from their phone, with an up-to-date catalog, a cart and order tracking.
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Mobile app · Incentives
DeWallet
Sales-incentive app for commercial teams
Cross-platform mobile app where sales teams log their sales, accumulate points and redeem them for products, gift cards and benefits.
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