AT.
A figure seen from behind, looking over a city in the haze

Sc. 01 — Opening

Lisbon, Portugal / Available for selected projects

Full-Stack Developer

AntonioTangaro

Building fast, quiet and carefully made products for the web.

Explore work

Local time

Sc. 02 — About

I turn complex ideas into products that feel simple.

Full-stack developer with seven years of experience across startups and studios, focused on performance, accessibility and clean, lasting code.

  1. 01

    Performance

    Every millisecond is part of the experience.

  2. 02

    Clarity

    Interfaces that explain themselves.

  3. 03

    Craft

    Details nobody asks for, done anyway.

Portrait of a person reading in soft window light
Still 02 — Behind the work

Sc. 03 — Manifesto

Good software should feel invisible: fast, calm and quietly intentional.

A person in a scarf looking out at the sea
Still 03 — The quiet part

I work where engineering meets design. A product is more than features: it is the rhythm of its motion, the weight of its type and the time it takes to answer a click.

I like small teams, honest feedback and shipping often, and I write code that the next person will be glad to read.

Skills: TypeScript, React, Next.js, Node.js, GraphQL, PostgreSQL, Tailwind CSS, Docker, Vercel, Redis, Figma, Go

Sc. 04 — Work

Selected work

  1. 01 / Design system

    Lumen

    An open-source design system with sixty accessible components, design tokens and a live playground.

    TypeScript · React · Storybook2026

    View code

  2. 02 / Analytics platform

    Atlas

    Real-time dashboards that turn millions of events into clear, shareable reports.

    Next.js · GraphQL · PostgreSQL2025

    View project

  3. 03 / Open source

    Relay

    A tiny, type-safe event bus for TypeScript with zero dependencies and first-class React bindings.

    TypeScript · Node.js2025

    View code

  4. 04 / Progressive web app

    Nimbus

    A calm weather app with offline support and animated forecasts.

    React · PWA · Canvas2024

    View project

Archive

Sc. 05 — Experience

The story so far

  1. 2023 — Present

    Senior Frontend Engineer

    Northwind Labs

    Leading the frontend of a collaborative analytics platform used by more than 2,000 teams; rebuilt the dashboard renderer and the shared design system.

    Full-time · Remote · TypeScript, React, Next.js, GraphQL

  2. 2020 — 2023

    Full-Stack Developer

    Brightline

    Built the booking flow and internal tools of a travel startup; shipped a checkout that raised conversion by 18%.

    Full-time · Lisbon · Node.js, React, PostgreSQL, AWS

  3. 2018 — 2020

    Frontend Developer

    Studio Parallel

    Websites and campaigns for cultural institutions and consumer brands, with rich motion and WebGL.

    Agency · Porto · JavaScript, Vue, GSAP, WebGL

  4. 2016 — 2018

    Freelance Developer

    Independent

    Websites and small web applications for local businesses and creatives.

    Freelance · Remote · HTML, CSS, JavaScript, PHP

Education

  • 2016 — 2018MSc in Computer ScienceMetropolitan University, LisbonHuman-computer interaction and distributed systems. Thesis on perceived performance.
  • 2013 — 2016BSc in Software EngineeringMetropolitan University, LisbonAlgorithms, databases, networks and software design. Graduated with honours.

Certifications

Sc. 06 — Process

Every frame matters.

From the first conversation to the last pixel, the same care goes into structure, motion and speed.

  1. 01

    Listen

    Understand the people, the problem and what success looks like.

  2. 02

    Shape

    Sketch the structure, the content and the moments that matter.

  3. 03

    Build

    Write clean, tested code and bring the interface to life.

  4. 04

    Refine

    Measure, polish and iterate until it feels effortless.