Good morning

Hey! I'm Abraham Serrano

Front-end at scale. Five years building the interfaces millions of people use daily — TUDN, Univision, Canal 5, Telehit — from architecture decisions to final pixel. Performance-first, SSR from day one, small team taking on large surfaces.

Front End Developer

How's your Saturday?

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View My Work My Experience
Astro
Astro
React
React
TypeScript
TypeScript
Tailwindcss
Tailwindcss
Next
Next
Nodejs
Nodejs
HTML5
HTML5
CSS3
CSS3
JavaScript
JavaScript
Git
Git
Supabase
Supabase
Mysql
Mysql
Bash
Bash
Astro
Astro
React
React
TypeScript
TypeScript
Tailwindcss
Tailwindcss
Next
Next
Nodejs
Nodejs
HTML5
HTML5
CSS3
CSS3
JavaScript
JavaScript
Git
Git
Supabase
Supabase
Mysql
Mysql
Bash
Bash

My Experience

2023

Front End Developer

TelevisaUnivision — Jan 2023 – Jan 2026

  • Delivered the TUDN and Univision rebranding using Next.js with SSR, significantly improving performance and Time to First Byte (TTFB).
  • Designed scalable frontend architecture with React, Tailwind CSS, and Zustand, reducing bundle size and improving maintainability.
  • Integrated GraphQL (Relay) with CMS-driven content to optimize data fetching and avoid over-fetching.
  • Implemented unit and E2E testing with Jest and React Testing Library, increasing release stability.
  • Contributed to one of the fastest sports media platforms serving users in Mexico and the US.
2022

Front End Developer (Freelance)

EGOTI — Aug 2022 – Sep 2022

  • Spearheaded the rebranding of Hyundai's car configurator, improving UX, filtering logic, and 360° visualization.
  • Built static and SSR pages using Next.js to enhance SEO and load performance.
  • Managed complex state with Redux Toolkit and optimized data handling.
  • Styled responsive layouts using CSS Modules and Material UI.
2021

Front End Developer

Televisa Digital — Jun 2021 – Dec 2022

  • Developed and maintained high-traffic platforms — TUDN, Las Estrellas, Canal 5 — using React and Next.js.
  • Played a key role in the TUDN rebranding and ONE TUDN unification across Mexico and the US.
  • Optimized SEO and frontend performance using modern JavaScript best practices and rendering strategies.
  • Built reusable UI components with Tailwind CSS, improving consistency and development speed.
  • Wrote and maintained tests with Jest to ensure production reliability.
2020

Front End Developer

EGOTI — Sep 2020 – May 2021

  • Led development of a Hyundai car configurator using React and Gatsby, focused on performance and UX.
  • Integrated 360° and panoramic image visualization with Material UI components.
  • Connected frontend to GraphQL APIs, leveraging React Hooks and Context API.
  • Implemented local storage and basic AWS cloud integrations.
  • Delivered a production-ready solution for a global automotive brand.

My Projects