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!

Miško Hevery
Builder.io, USA
As CTO, Miško oversees the technology division that powers the Builder.io applications and software. Before joining Builder.io, he created Open Source platforms for Google, including Angular, AngularJS and was co-creator of Karma. While at Google, he brought a testing culture there with his blog. Before focusing on making the web better, he believes testing is the key to success.
Miško started his career designing digital circuits and moved to databases, full-stack development and finally, front-end frameworks, giving him a unique perspective. He understands all of the layers from the web down to a transistor. In addition to Google, he worked for tech powerhouses Adobe Systems and Sun Microsystems.
He holds an MS/BS from Rochester Institute of Technology and an MBA from Santa Clara University.

James Q Quick
Learn Build Teach LLC, USA
James is a JS Developer, Keynote Speaker, and Content Creator whose passion for teaching has impacted hundreds of thousands of developers across the world. With 10+ years of Software Development and Developer Advocacy experience, he brings deep technical knowledge as well as a proven ability to communicate across levels of understanding and experience to impact a broad audience of developers. In his spare time, he runs a thriving Discord community called Learn Build Teach, plays co-ed soccer with his wife, and can solve a Rubik's cube in under a minute.

Paul Henschel
react-three-fiber, Switzerland
Front-end developer. Currently living in St. Gallen, Switzerland. Founder of Luxundlaune, a photography platform in Germany, Paranoidandroid, a custom rom for Android and several open source projects including react-spring, react-three-fiber, react-use-gesture, zustand.

Andreas Müller
Microsoft, USA
Andreas Müller is a Principal Research SDE at Microsoft, where he works on the interface of the Data Science ecosystem and cloud infrastructure.
He previously held positions as Associate Research Scientist at the Columbia Data Science Institute and as a Research Engineer at the NYU Center for Data Science.
He is one of the core developers of the scikit-learn machine learning library, a member of the scikit-learn technical committee, and the author of the book "Introduction to machine learning with Python".
His work focuses on practical aspects of machine learning and the development of user-centric machine learning software.

Frantz Kati
Udemy instructor, Nigeria
Frantz Kati is a software engineer with a passion for teaching and building open source developer tools. He's a Udemy instructor with over 75,000 students, creator and editor of the Tech Career Growthletter with 17,000 readers, and currently the core maintainer of the headless open source CMS TenseiJS.

Max Stoiber
GraphCDN, Austria
JavaScript Engineer from Austria in love with React and Node. Previously he worked at GitHub, who acquired the startup he co-founded, Spectrum. He is well known for making styled-components, react-boilerplate, and a wide variety of other open source projects in the React ecosystem.

Charlie Gerard
CrowdStrike, USA
Charlie is a senior research engineer, the author of Practical Machine Learning in JavaScript with TensorFlow.js and overall, a creative technologist. In her spare time she explores the field of human-computer interaction and builds side projects using machine learning, AR/VR, hardware and creative coding.

Matteo Collina
Platformatic.dev, Italy
Matteo is the Co-Founder and CTO of Platformatic.dev with the goal to remove all friction from backend development. He is also a prolific Open Source author in the JavaScript ecosystem and modules he maintains are downloaded more than 17 billion times a year. Previously he was Chief Software Architect at NearForm.
Matteo is a member of the Node.js Technical Steering Committee focusing on streams, diagnostics and http. He is also the author of the fast logger Pino and of the Fastify web framework.
He is also co-author of the book "Accelerating Server-Side Development with Fastify" edited by Packt.
In 2014, he defended his Ph.D. thesis titled "Application Platforms for the Internet of Things". Matteo is an renowed international speaker after more than 60 conferences, including OpenJS World, Node.js Interactive, NodeConf.eu, NodeSummit, JSConf.Asia, WebRebels, and JsDay just to name a few.
In the summer he loves sailing the Sirocco.

Tracy Lee
This Dot Labs, USA
Tracy has been a startup founder for the past 16 years and is an angel investor focused on developer tooling. Her passion is helping entrepreneurs with go to market / marketing, development (management), and open source strategies. She loves talking about figuring out tactical ways to go to market, expand sales and drive customer acquisiton through automation.
Tracy also is a JavaScript developer, on the RxJS core team, a Google Developer Expert, a Github Star, and a Microsoft MVP. She spends most of her time in the open source ecosystem, and building products and communities in this space.
After her last exit in 2015, she started a consultancy called This Dot Labs, which serves clients such as Stripe, Xero, Docusign, Twilio, Roblox, Google, Cloudinary, Sentry, and more, but also helps startups get off the ground from POC to implementation.
She is also a frequent keynote speaker at conferences. You can find her on Twitter @ladyleet or at thisdot.co

Lydia Hallie
Software Engineering Consultant, The Netherlands
Lydia Hallie is a software engineer, consultant, and educator with expertise in JavaScript, ECMAScript standards, and modern web development frameworks. She specializes in performance optimization, scalable architecture, and breaking down complex programming concepts into clear, visual explanations. Through a combination of hands-on engineering and in-depth technical educational content, she helps developers master advanced concepts.