TypeScript Projects.

Built a multi-framework design system with 123 accessible primitives for Astro, React, and Web Components, plus Figma, agent, MCP, and registry workflows.

Built and published a VS Code extension that brings npm dependency status, update targets, pnpm workspace catalog context, and OSV security signals into package manifests.

Built a growing family web platform with a nautical personal site, public message board, baby-shower experience, admin tools, and a shared Cloudflare API.

Built a deterministic Astro health-check toolkit with a CLI, ESLint plugin, editor extension, GitHub Action, docs site, and installable agent skills.

Rebuilt Marcone's storefront into a faster, more accessible headless experience while giving teams room to ship independently.

Built a DX-first ESLint toolkit for JavaScript and TypeScript teams that want stronger defaults, less setup friction, and cleaner reviews.

Led architecture and delivery for a fast-moving esports platform across web, mobile, and backend systems, improving performance, release speed, and team velocity.

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 as a senior engineer.