JavaScript experts, mentors, speakers
Explore personalities and their talks, workshops, videos, and articles. While we focus primarily on JavaScript and frameworks like React, Vue, Svelte, and Node, you may find experts on other fields on our Portal. To name a few – Testing, DevOps, Machine Learning, and many more!

Luciano Mammino
fourTheorem, Ireland
Luciano was born in 1987, the same year Super Mario Bros was released in Europe, which, by chance is his favorite game! He started coding at the age of 12, hacking away with his father's old i386 armed only with MS-DOS and the QBasic interpreter and since then he has been professionally a software developer for more than 14 years. He is currently a senior Architect at fourTheorem where he is helping companies to get the best of the cloud, AWS and serverless. He loves the full-stack web, Node.js & Serverless and co-authored "Node.js design patterns", maintains fstack.link and co-hosts awsbites.com.

Jason Mayes
Google, USA
Jason is the public face of Web AI and TensorFlow.js at Google, helping web engineers around the world take their first steps with machine learning in JavaScript. Jason is the author of the 1st Web ML course on Google Developers and EdX, that has enabled over 40,000 students to start their journey with Machine Learning in the browser. He also combines his knowledge of the technical and creative worlds to develop innovative prototypes for Google's largest customers and internal teams with over 15 years experience working within web engineering and investigating emerging technologies. Jason also hosts the popular Made with TensorFlow.js show on the TensorFlow YouTube channel giving a voice to Web ML developers across industries globally.
He holds an MEng in Computer Science, is a member of the British Computing Society, and is a certified information privacy technologist. Jason loves sharing knowledge online which has attracted a global following.

Phil Pluckthun
Open Source Developer, UK
JavaScript, React, GraphQL engineer, and Open Source maintainer for urql, styled-components, and several experimental libraries. Software Engineer at Stellate building GraphQL infrastructure.

Maaret Pyhäjärvi
Vaisala Oyj, Finland
Maaret Pyhäjärvi is an exploratory tester extraordinaire with a day-job at Vaisala as Principal Test Engineer. She is a tester, (polyglot) programmer, speaker, author, and a community facilitator. She has been awarded the two prestigious global testing awards, Most Influential Agile Testing Professional Person 2016 (MIATPP) and EuroSTAR Testing Excellence Award (2020), and selected as Top-100 Most Influential in ICT in Finland 2019&2020.

Scott Spence
GraphCMS, UK
I’m a developer advocate working with GraphCMS to create content that helps remove friction and educate around the GraphQL space. I create content written in the blog here and also in educational videos supporting the written content. I’m a second career dev, that reskilled from a VBA analyst developer role into web development. I’m a massive fan of the Jamstack I have a wealth of knowledge working with Gatsby and am spending a lot of time familiarising myself with Svelte and SvelteKit.

Chance Strickland
Shopify, USA
Chance Strickland is a software engineer at Shopify building Remix. Previously he has worked on popular open source libraries like Reach UI and Radix UI, and he has taught hundreds of developers by leading workshops with React Training.

Monica Powell
Newsela, USA
Monica Powell is a software engineer who is passionate about making contributing to open-source more approachable, creating technology to elevate people, and building community. You can find her developing educational technology as a Senior Software Engineer at Newsela, teaching web development, and contributing to open-source projects. GitHub recognized her as an inaugural GitHub Star based on her involvement in the tech community.

Matt Hackett
Valadria, USA
Matt Hackett is a game developer who writes, draws, and podcasts. He wrote & illustrated How to Make a Video Game All By Yourself which has been an Amazon #1 bestseller in multiple categories.

Alba Silvente Fuentes
Storyblok, Netherlands
Alba Silvente, aka Dawntraoz, is a Sr FullStack Engineer at Storyblok. She loves writing about FE development, Jamstack, and Web Performance on her blog, speaking at conferences, hosting a Spanish tech podcast, and working hard in the open-source community. She is also a GoogleDevExpert in Web Technologies, a Microsoft MVP and an ambassador at WTM & Nuxt.

Henri Helvetica
Command-h, Canada
Henri is a web performance and user experience advocate, supporter of performance literacy and a 5k distance runner. More importantly, he's busy building a mini empire focusing on developer media. Command-h is a small org in support of all his passions: people and development. When not combing through research docs, case studies and profiling, he can be found curating the next and best in person experience possible.

Julius Marminge
Open Source Enthusiast, Sweden
Currently mostly into webapps and devtools. Build most stuff using the create-t3-app stack. Open Source Enthusiast

Jecelyn Yeen
Google (Chrome DevTools), Germany
Jecelyn Yeen is a DevRel engineer at Google working on Chrome DevTools and Browser Automation. Her work focuses on understanding and activating the ecosystem around developer tooling.
When she’s not coding (and avocado-ing), she’s jumping into mysterious sea waters in search of narwhals and mermaids.

Nathen Harvey
DORA & Google Cloud, USA
Nathen Harvey leads the DORA Advocacy team as a developer relations engineering manager at Google Cloud. Nathen has had the privilege of working with some of the best teams and open-source communities, helping them apply the principles and practices of DevOps and SRE. He has been a co-author of the Accelerate State of DevOps report for the past three years. Nathen also co-edited and contributed to 97 Things Every Cloud Engineer Should Know.

Çağatay Çivici
PrimeTek, Turkey
Creator of PrimeVue at PrimeTek, the team behind the popular open-source UI libraries. As a Vue enthusiast, he has been working on contributing a top-notch UI library for the Vue Ecosystem.

Michał Pierzchała
Callstack, Poland
Head of Technology at Callstack. Passionate about building mobile and web experiences, high quality JS tooling and Open Source for humans and agents. Core React Native Community & Jest contributor, creator of agent-device. Space exploration enthusiast.

Ryan Cavanaugh
Microsoft, USA
Ryan Cavanaugh has been working on the TypeScript team at Microsoft since before its first public release in 2012. He's worn many hats in this time, including tester, developer, customer data, and now serves as the development manager for the compiler team.

Jordan Harband
HeroDevs, USA
TC39 team member and an editor of the specification from 2018-2021. Jordan has been heavily involved in the node community for as many years, and has gradually created (but mostly inherited or been gifted) a decent number of open source projects.
His focus is JavaScript, standards, frontend web development, full stack (frontend + backend + db) architecture design, and overall object oriented code optimization.

Mateusz Burzyński
Stately, Poland
My name is Mateusz Burzyński and I'm a JavaScript developer focused on React ecosystem. I'm also a big OSS enthusiast. I believe that node_modules is not a black box and I dive into it frequently - that has led me to maintain a few popular repositories like XState, Emotion, Changesets, Redux-Saga. Recently, I also started to contribute to TypeScript itself.

Rodrigo Pombo
Making open source dev tools, Argentina
Making open source dev tools and stuff. Currently building @codehike_

Ian Johnson
ObservableHQ, USA
Ian Johnson is a data visualization developer and software prototyper at ObservableHQ. Ian has been turning data into pixels for more than 15 years, cheering on the developments in web standards and open source technologies that enable ever richer forms of communicating data.
Ian helped found the Bay Area D3 User Group, a community of thousands of d3.js practitioners, to learn from other like-minded folks. He has prototyped software and visualizations for companies, researchers and causes. He enjoys sharing his understanding and is often tweeting about data visualization and the creative process.

Will Eastcott
PlayCanvas, UK
Will Eastcott is CEO and co-founder of PlayCanvas, an open source, browser-based game engine. Will is a 25 year veteran of the games industry, with credits in Call of Duty, Max Payne, DJ Hero and many more. Will is a vocal advocate for open source and open standards and is currently obsessed with taking the web into the third dimension.


