Projects where JavaScript played a meaningful role in the architecture, delivery workflow, or product experience.
Built and scaled the official X Games digital platform — a high-traffic sports media site serving millions of fans — with real-time live streaming, geo-based access control, and a programmatic ad infrastructure powered by Google Ad Manager.
Built a DX-first ESLint toolkit for JavaScript and TypeScript teams that want stronger defaults, less setup friction, and cleaner reviews.
Turned internal linting conventions into a reusable package that standardized React and TypeScript projects and paved the way for @santi020k/eslint-config-basic.
Shipped across gaming, SaaS, and martech products in parallel, improving API performance by 40% while supporting launches for Team Liquid, NurtureBoss, and Stardust.gg.
Led the web, back-office, and mobile experience for a luxury real estate platform, growing monthly active users by 50% and improving broker workflows.
Led the front-end modernization of an AI martech platform, cutting bugs by 30% while moving the product from jQuery to a scalable React and TypeScript architecture.
Co-founded a boutique software studio that shipped 10+ client launches in its first year and helped selected clients grow organic traffic by up to 70%.
Co-organize one of Medellin's most active React communities, sustaining free meetups and workshops that drew 100+ participants at peak sessions.
Shipped client web, Android, and commerce products across Rails, AngularJS, Java, and WordPress, building the release discipline and full-stack range I still rely on today.
