Full-stack developer. I design and ship complete products — interface, API, database, deploy — not slices of one.
Next.js and Astro on the front. Node and Python on the back. SQL Server, PostgreSQL and SQLite underneath. And when a product has to answer business questions, I build the pipelines, dashboards, and AI tooling that make it answer them.
NOT SHOWN ON THIS SHEET — multi-company ETL pipelines, daily margin reporting with email alerts, and a WhatsApp pricing-approval bot. Private, internal business systems.
TOTAL — 58 merged pull requests into upstream repositories with 26k+ combined stars. Accessibility, performance, SEO, security, testing and UI work.
deleonalonso77@gmail.com · github.com/DataDave-Dev
Build things that solve real problems.