Rui Duarte

Senior Frontend Engineer · Lisbon, Portugal

I specialize in design systems and building interfaces that feel alive. With deep experience in React and Next.js, I build performant, scalable web applications and sites.

Featured Work

Tiger Data

Senior Frontend Engineer

Shaping the console with Product and Design, from new features to the Design System and performance work.

48 → 88
Lighthouse performance
Up to 3×
less JavaScript per page
6×
faster CI builds
Screenshot of the Tiger Cloud console showing a list of services, in both light and dark mode

Project services, light and dark

Screenshot of the Tiger Cloud console showing the command palette in light mode

Command palette

TheSix

Freelance, with ThirtyOne Studio

A Next.js and Sanity site for a beauty and wellness destination in Mayfair.

90+
Lighthouse, mobile & desktop
GSAP
animations
Screenshot of the home page of TheSix showing an intro heading and a grid of treatments provided

Home page

Loading sequence

Plum Guide

Lead Frontend Engineer

Four years leading the frontend of a luxury rentals marketplace, including A/B tests with Product and Analytics.

30 → 85
Lighthouse performance
Design System
lead
Monorepo
migration
Screenshot of the Plum Guide home page showing a hero section with the background image of a home's backyard with a pool and a mountainscape

Home page

Screenshot of the Plum Guide listing page of a property in England called Stone Manor

Listing page

Experience

Projects

  • Pillr

    2025

    AI outreach for recruiters

  • TheSix

    2024 – 2025

    Beauty and wellness salon

  • Podback

    2022 – 2023

    Coffee pod recycling programme

  • Fell & Scar

    2021

    Brand and interior design studio