Most Active Speaker

Matheus Albuquerque

Matheus Albuquerque

Staff SWE, Front-End @ Medallia • Google Developer Expert • International Speaker

Prague, Czechia

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Matheus is a Staff Front-End Engineer at Medallia, building their surveys platform and helping them shape the customer experience market with React and a Google Developer Expert in Web Performance.

His areas of interest include React and its ecosystem, JS and compile-to-JS languages, DX, and perceived performance optimization. Aside from public speaking about these, he also volunteers at TechLabs, teaching front-end development.

Awards

  • Most Active Speaker 2024
  • Most Active Speaker 2023

Area of Expertise

  • Information & Communications Technology

Topics

  • ReactJS
  • NodeJS
  • JavaScript
  • TypeScript
  • Front-End Development

The Computer Science of React

We'll have an in-depth overview of the important concepts behind reconciliation and React Fiber. Then, we'll explore how React uses this algorithm and go through a few magic words we hear a lot, like coroutines, continuations, generators, and algebraic effects—and see how they all relate to React.

Web Performance Meets Human Sciences

Website performance significantly impacts user experience, often leading to frustration and anger when pages are slow or unresponsive. Beyond psychological effects, poor performance can increase usage costs and modern websites require a nuanced approach to capture continuous user interactions.

This session explores behaviors like rage clicks and cursor thrashing, emphasizing metrics that reflect user emotions and overall satisfaction. We’ll discuss the complexities of performance measurement, highlighting the need to look beyond single metrics. Ideal for those interested in understanding the business impact of site performance and the biases affecting user perceptions.

A non-exhaustive outline includes:

- Cognitive biases
- Correlating frustration and business outcomes
- Delight and frustration
- Measuring emotion
- Rage, missed, and dead clicks
- Wild mouse
- Scrandom
- Backtracking
- Median lethal dose (LD50)

A Decade: React’s Rhapsody of Life

Join me in celebrating the decade-long journey of React—a framework that has revolutionized front-end development.

Despite all the initial skepticism around aspects like JSX, it became one of our favorite tools. We'll explore this and other "trouble in paradise” moments!

Looking ahead, we'll discuss ongoing efforts like the Activity component, optimistic state updates, and more advanced stuff, like the optimization compiler and the recent improvements to React Native's JS engine.

Let's embrace a decade of React and the endless possibilities it holds!

Speed at Scale: Optimizing The Largest CX Platform Out There

In a world with a wide variety of network connections, any user can have a slow experience, and apps that delight users on fast connections can be barely usable on slow ones.

In this session, I'll share my journey of gradually adapting how we deliver pages to better cater to our user's constraints on a platform with 15mi+ sessions per month—where simply rewriting everything from scratch is not an option.

With an eye on maintenance and scalability, we'll discuss legacy codebases, automation/code generation, polyfilling strategies, main thread offloading, and many other tips and tricks for large platforms targeting emerging markets.

Hydration, Islands, Streaming, Resumability… Oh My!

Our ecosystem can be overwhelming! First, we had the rise of SSR and SSG—and each had its own gigantic pile of frameworks and tools. Then partial hydration enabled us to hydrate only some of our components on the client, which we've seen in React Server Components.

But what about islands? Do they relate at all to Streaming SSR? Also, what is resumability, and why do I keep hearing about it? […] Oh, did anyone say rendering on the Edge?

Well… There are many approaches out there, and all of them argue that their philosophy is best. In this session, we’ll go over these architecture/rendering patterns, to help shed some light on how some are implemented and the concepts behind them.

Web Performance APIs That You (Probably) Never Knew Existed

Responsiveness to interaction is crucial for our apps, and you’ve likely heard about the fantastic tools we have to measure and optimize web performance. What many developers don't know is that there is a wide range of performance APIs native to the Web Platform itself.

In this talk, we’ll see how to leverage the power of some of them to reliably measure responsiveness and correctly identify culprits for bad experiences.

Porto Tech Hub Conference 2023 Sessionize Event

October 2023 Porto, Portugal

P99 CONF 2023 Sessionize Event

October 2023

UtahJS Conf 2023 Sessionize Event

September 2023 Sandy, Utah, United States

React Rally 2023 Sessionize Event

August 2023 Salt Lake City, Utah, United States

WeAreDevelopers World Congress 2023 Sessionize Event

July 2023 Berlin, Germany

Build Stuff 2022 Lithuania Sessionize Event

November 2022 Vilnius, Lithuania

Frontmania 2022 Sessionize Event

October 2022 Utrecht, The Netherlands

NDC Oslo 2022 Sessionize Event

September 2022 Oslo, Norway

Dev Conf 2022

🖥️ Slides: https://speakerdeck.com/ythecombinator/devconf-pl-2022

September 2022 Łódź, Poland

DevConf 2022 Sessionize Event

September 2022 Łódź, Poland

React Summit 2022

📺 Session: https://youtu.be/nzqbQEW2hnQ
🖥️ Slides: https://speakerdeck.com/ythecombinator/react-summit-2022

June 2022 Amsterdam-Zuidoost, The Netherlands

Matheus Albuquerque

Staff SWE, Front-End @ Medallia • Google Developer Expert • International Speaker

Prague, Czechia

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