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  • Costa Rica
  • 00:55 (UTC -06:00)

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catinhocr/README.md

Andrés Castillo Quesada — "Cato"

Senior Frontend Engineer & Creative Technologist · 13 years bridging design and engineering

Building interactive, motion-driven interfaces and the design systems that scale them — from real-time 3D product configurators to component libraries used across multi-team ad platforms.

🟢 Currently open to remote Senior React/Next.js roles


What I work with

React · Next.js (App Router) · TypeScript · Three.js · GSAP · Design Systems · NestJS · PostgreSQL · AWS

Selected work

  • castilloquesada.com — my portfolio, built in the open. Next.js + GSAP + Lenis, token-driven design system, hand-built end to end.
  • Global Footwear Brand — 3D Shoe Customizer — real-time product customization for a global brand (Vue + Three.js)
  • Multi-Team Retail Ad Platform — Design System — SCSS token/component library powering a multi-team ad platform
  • Uniwatch — AI-powered IP vigilance SaaS, built and led as sole technical lead (NestJS, PostgreSQL, Python/TensorFlow, AWS)

(The footwear and retail-media platform projects were delivered via Publicis Global Delivery; details shared here stay at the narrative level per client NDA.)

How I work

Frontend architecture that holds up under real production weight — performance-conscious motion, systems that other engineers can build on without guessing, and a genuine interest in the point where design and engineering overlap rather than just meet.

Elsewhere

LinkedIn · castilloquesada.com · andres@castilloquesada.com

Pinned Loading

  1. castilloquesada.com castilloquesada.com Public

    My own personal portfolio website

    TypeScript

  2. custom-simple-spa custom-simple-spa Public

    Custom made (and very simple) Single Page App built with vanilla JS.

    SCSS

  3. scss-custom-boilerplate scss-custom-boilerplate Public

    SCSS 1

  4. catix-freshxmind catix-freshxmind Public template

    Fresh X Mind is a Wordpress starter theme. Modern and simple development workflow, made to quickly kickstart well organized & easy to maintain Wordpress themes. Webpack based setup supports Sass (s…

    PHP 2

  5. couscous couscous Public

    Single Page App made with vanilla JS (ES6+), following a Model-View-Controller approach. Uses Webpack and Babel for JS, and SCSS for styling. Holds a Tic Tac Toe game for now, looking to extend som…

    SCSS 2

  6. es6-mvc-spa es6-mvc-spa Public

    A simple (and in development) Front-End Vanilla JavaScript/ES6 boilerplate app made to consume a REST API, following MVC pattern and with a Single Page Routing flow (Can be heavily improved too, ju…

    JavaScript 9