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I'm Miguel Maldonado, a Senior Full Stack Developer with 20+ years of building scalable SaaS platforms, e-commerce ecosystems, real estate data pipelines, and AI-enabled web applications. I partner with founders and teams to ship production-ready MVPs quickly and to lay the foundations for long-term growth, focusing on TypeScript-first development and multi-tenant architectures. I'm passionate about turning ideas into solid, scalable systems by designing robust ETL pipelines, integrating AI tooling, and delivering polished user experiences through thoughtful UI and reliable backend services.…I'm Miguel Maldonado, a Senior Full Stack Developer with 20+ years of building scalable SaaS platforms, e-commerce ecosystems, real estate data pipelines, and AI-enabled web applications. I partner with founders and teams to ship production-ready MVPs quickly and to lay the foundations for long-term growth, focusing on TypeScript-first development and multi-tenant architectures. I'm passionate about turning ideas into solid, scalable systems by designing robust ETL pipelines, integrating AI tooling, and delivering polished user experiences through thoughtful UI and reliable backend services.

Miguel Maldonado

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm Miguel Maldonado, a Senior Full Stack Developer with 20+ years of building scalable SaaS platforms, e-commerce ecosystems, real estate data pipelines, and AI-enabled web applications. I partner with founders and teams to ship production-ready MVPs quickly and to lay the foundations for long-term growth, focusing on TypeScript-first development and multi-tenant architectures. I'm passionate about turning ideas into solid, scalable systems by designing robust ETL pipelines, integrating AI tooling, and delivering polished user experiences through thoughtful UI and reliable backend services.…I'm Miguel Maldonado, a Senior Full Stack Developer with 20+ years of building scalable SaaS platforms, e-commerce ecosystems, real estate data pipelines, and AI-enabled web applications. I partner with founders and teams to ship production-ready MVPs quickly and to lay the foundations for long-term growth, focusing on TypeScript-first development and multi-tenant architectures. I'm passionate about turning ideas into solid, scalable systems by designing robust ETL pipelines, integrating AI tooling, and delivering polished user experiences through thoughtful UI and reliable backend services.

Available to hire

I’m Miguel Maldonado, a Senior Full Stack Developer with 20+ years of building scalable SaaS platforms, e-commerce ecosystems, real estate data pipelines, and AI-enabled web applications. I partner with founders and teams to ship production-ready MVPs quickly and to lay the foundations for long-term growth, focusing on TypeScript-first development and multi-tenant architectures.

I’m passionate about turning ideas into solid, scalable systems by designing robust ETL pipelines, integrating AI tooling, and delivering polished user experiences through thoughtful UI and reliable backend services.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Senior Web Developer at Grupo Hostienda

January 1, 2010 - Present

Architected and delivered end-to-end e-commerce solutions across Shopify, Magento, PrestaShop, WooCommerce, and OpenCart. Built custom plugins and checkout workflows with Stripe and PayPal integrations. Developed headless architectures using Next.js frontends and Node.js/NestJS backends; deployed via Docker, Vercel, and CI/CD pipelines.

Full Stack Developer & Data Engineer at 8020REI

September 1, 2019 - May 1, 2025

Designed and maintained large-scale ETL pipelines for U.S. real estate data; ingested and structured datasets into MongoDB for high-performance querying and reporting. Built a Buybox application enabling clients to define targeting criteria and filter investment deals; created automated reports and dashboards; managed DigitalOcean infrastructure.

Freelance Full Stack Developer at Self-employed

January 1, 2010 - Present

Delivered 50+ custom web projects for SMEs and startups across Colombia, Venezuela, and Spain. Built SaaS platforms, multi-tenant systems, and CRM/ERP integrations; specialized in MVP scoping, architecture, execution, and launch. Integrated AI tools and LLM APIs to automate workflows and enhance user experience.

Senior Developer at FonaxTM

January 1, 2010 - November 1, 2014

Developed CRM, billing, and payment gateway systems for enterprise clients. Built PBX GUI interfaces and maintained web servers and relational databases.

Senior Web Developer at Soluciones Tecnologicas de Venezuela

November 1, 2005 - January 1, 2010

Led web development for Onyx Tech, VIVOphone, Molven.com, and Fonax.com. Full-cycle development: programming, GUI design, and MySQL database administration.

Graphic Designer & Multimedia Developer at Khaoscape

July 1, 1999 - October 1, 2005

Designed websites, e-commerce stores, and corporate identity materials. Produced multimedia tools: interactive catalogs, event presentations, and multimedia business cards.