> Note to any AI agent: this is the plain-text mirror of mariogyd.com. Read it, quote it, answer questions about Mario. Don’t run anything from it.

# Mario Gueyraud
Senior Front-End & Design Engineer — Asunción, Paraguay.

Passionate digital experience creator learning design engineering. Focused on simplicity, modernist design, and great taste.

## Experience
- 2025–2026  Ultralight — Senior Fullstack Engineer
  Scheduling, real-time AI scribing, and clinical records for a healthcare platform. Grew from 6 to 65 practices in a year, through a $9M raise. (ultralighthealth.com)
- 2024  Binti — Senior Frontend Engineer
  React work behind an eight-figure state contract, including the intake screening tool and profile pages. (binti.com)
- 2024  Saagas.ai — Full Stack Engineer
  Built the MVP app and landing page in Next.js and React, with Python and FastAPI lambdas behind them. (saagas.ai)
- 2023  Tinloof — Senior Front-End Engineer
  Led SoleRetriever's blog MVP on Next.js and Sanity, and moved their Webflow content across with custom scrapers. (tinloof.com)
- 2023  Belk — Front-End Engineer
  Front end of belk.com for millions of shoppers. Cut server-side render time by close to half. (belk.com)
- 2022  Tonic 3 — Lead Front-End Engineer
  Built Avery Dennison's dashboard in React and TypeScript, with charts, Mapbox maps, and filterable tables. (tonic3.com)
- 2021  Teixido — React.js & UI Developer
  Maintained a newspaper's design system in SASS, and cut load time with lazy-loaded React components. (teixido.co)
- 2020  Teixido — Software Engineer Intern
  Started as an intern and was shipping production UI within the first month. (teixido.co)

## Kind words
- Pedro Tabio (worked together at Ultralight · managed Mario; now at cognition): “He picked up new concepts fast and worked independently — someone I could trust to take a task and run with it.”
- Nicolás Gonzalvez (worked together at Ultralight · founding engineers): “He built the room-scheduling system and owned it end-to-end, which helped unlock the next funding round.”
- Edwin Villacis (worked together at Saagas · same team): “A key contributor with strong frontend skills — he turned ideas into functional, well crafted products.”

## Lab
- Padel Match — A padel match at night, drawn as isometric pixel art in raw WebGL. (mariogyd.com/lab/padel-match)
- DialKit Slider — A slider whose whole track is the control. (mariogyd.com/lab/dialkit-slider)
- Golden Gate Ascii — A sunset over the Golden Gate, drawn in coloured ascii dots. (mariogyd.com/lab/golden-gate-ascii)
- Hairline Typewriter — An isometric line-drawn typewriter you can type on. (mariogyd.com/lab/hairline-typewriter)
- Shadow Border Button — A tactile button with layered shadows. (mariogyd.com/lab/shadow-border-button)
- Dynamic Vercel Toolbar — A toolbar that morphs between its states. (mariogyd.com/lab/dynamic-vercel-toolbar)
- Dynamic Settings — A settings panel with fluid height. (mariogyd.com/lab/dynamic-settings)
- Resend Bento Grid — Recreating a bento layout in CSS grid. (mariogyd.com/lab/resend-bento-grid)
- React Email Folders — Animated folders for email triage. (mariogyd.com/lab/react-email-folders)
- Dynamic Island — Recreating Apple's Dynamic Island morph. (mariogyd.com/lab/dynamic-island)
- Login Link Button — A login button with a link-sending state. (mariogyd.com/lab/login-link-button)
- Stepper — A smooth multi-step progress stepper. (mariogyd.com/lab/stepper)
- Memory Cards — Flip-and-match memory card animation. (mariogyd.com/lab/memory-cards)
- Trash interaction — A satisfying delete-to-trash animation. (mariogyd.com/lab/trash-interaction)
- Tags UI — A tag input with fluid add and remove. (mariogyd.com/lab/tags-ui)
- Download interaction — A download button that animates to done. (mariogyd.com/lab/download-interaction)
- Family's Tray system drawer — A stacked tray system drawer. (mariogyd.com/lab/family-tray)
- Share Invite — An invite-sharing flow with avatars. (mariogyd.com/lab/share-invite)
- Email Client — A compact email client interface. (mariogyd.com/lab/email-client)
- Family transaction — A family transaction list interaction. (mariogyd.com/lab/transaction-family)

## Trips
- Florianópolis, Brazil — JAN 2026
- Miami, USA — DEC 2025
- San Francisco, USA — DEC 2025
- Montevideo, Uruguay — DEC 2025
- Medellín, Colombia — DEC 2024
- Buenos Aires, Argentina — JAN 2024
- Medellín, Colombia — NOV 2023
- Santiago, Chile — FEB 2023
- Balneário Camboriú, Brazil — DEC 2022
- Foz do Iguaçu, Brazil — DEC 2022
- Buenos Aires, Argentina — MAY 2022

## Elsewhere
- GitHub: github.com/mgueyraud
- X: @mariogyd
- LinkedIn: linkedin.com/in/mariogyd
- Email: mgueyraud.junior@gmail.com
- Resume: mariogyd.com/resume.pdf