Adam Wathan is a Canadian developer, entrepreneur, and the creator of Tailwind CSS - the utility-first CSS framework used by millions of developers worldwide. As CEO of Tailwind Labs, he turned a side-project experiment into a multi-million dollar business encompassing Tailwind UI, Headless UI, and an ecosystem of developer tools. A college dropout turned prolific course creator, he built his reputation first through 'Refactoring to Collections' and 'Refactoring UI' (co-authored with Steve Schoger), generating over $2.5 million in book sales alone. In January 2026, he made headlines again when AI's disruption of developer documentation led to dramatic revenue declines and significant layoffs at Tailwind Labs, prompting major sponsorships from Vercel, Google, and others rallying to support what they called 'foundational web infrastructure.'
Alex Russell is a Partner Product Architect at Microsoft Edge and Blink API OWNER who spent 13 years at Google shaping the modern web. He co-created Dojo Toolkit, coined the term 'Progressive Web Apps' alongside Frances Berriman in 2015, and led the delivery of Service Workers, Web Components, ES6 Promises and Classes, Push Notifications, and Project Fugu. A three-time elected member of the W3C Technical Architecture Group and decade-long TC39 representative, Russell writes the newsletter 'Infrequently Noted' where he advocates relentlessly for a fast, open, and equitable web - especially for the billions on budget Android devices that the developer community tends to forget.
Cassidy Williams is a Chicago-based software engineer, Senior Director of Developer Advocacy at GitHub, and one of the most recognizable voices in the frontend developer community. Known online as @cassidoo, she runs the widely-read weekly newsletter 'rendezvous with cassidoo,' builds mechanical keyboards, mentors early-career engineers, and has spoken everywhere from TED stages to the United Nations. She's a Glamour '35 Women Under 35 Changing the Tech Industry' honoree, a LinkedIn Top Professional, and a firm believer that you get a lot by giving.
Dave Rupert is a senior UX engineer at Microsoft, co-founder of the Austin-based web agency Paravel, and co-host of the long-running ShopTalk Show podcast. With over two decades in web development, he is widely recognized for his accessibility advocacy - notably founding The A11Y Project in 2014 - and for open-source tools like FitVids.js and FitText.js. He brings a maker's instinct, a teacher's heart, and a quietly sharp wit to everything he touches.
Dominik Dorfmeister, known online as TkDodo, is an Austrian software engineer, core maintainer of TanStack Query (formerly React Query), and one of the most influential voices in the React ecosystem. Based in Vienna, he works as a Frontend Engineer at Sentry while helping shape how millions of developers approach server state management. His blog at tkdodo.eu - built on the philosophy that 'if I get a question three times, I write the answer down' - has become essential reading for React developers worldwide. With over 3.5 years maintaining TanStack Query (which now appears in nearly 20% of all React applications), conference talks from Berlin to Paris, and a co-created official course at query.gg, Dominik bridges the gap between library internals and everyday developer experience.
Guillermo Rauch is the founder and CEO of Vercel, the frontend cloud platform that powers millions of developers and some of the world's most visited websites. A self-taught engineer from Lanús, Argentina who never finished high school, Rauch built two of JavaScript's most widely used open-source libraries (Socket.IO and Mongoose), co-created Next.js — the world's most popular React framework — and turned Vercel into a $9.3 billion company with $340 million ARR. He is also one of the most prolific angel investors in tech, with over 700 known investments, and recently launched v0, an AI-powered coding tool with over 3.5 million users.
Josh W Comeau is a Montreal-based frontend developer, indie course creator, and one of the most beloved CSS and React educators on the internet. After stints at Unsplash, Shopify, Khan Academy, and Gatsby, he left corporate engineering in 2020 to build interactive, deeply original courses that generated over $550,000 in presale revenue. His CSS for JavaScript Developers and The Joy of React courses have taught more than 28,000 developers through a teaching style that blends interactive widgets, mini-games, and the rare gift of building genuine mental models rather than just showing code.
Lea Verou is a Greek-American web standards leader, MIT researcher, and creator tools advocate whose fingerprints are on the web itself. She has designed web technologies now baked into every major browser, built 30+ open-source projects with nearly 2 billion npm downloads (including PrismJS and Color.js), authored the bestselling CSS Secrets (O'Reilly, 2015), and served as an elected W3C Technical Architecture Group member. A PhD candidate at MIT CSAIL in Human-Computer Interaction and Programming Language Design, she consults for Google, Mozilla, and Stripe, leads the State of HTML survey, and has delivered 100+ conference talks worldwide - always live-coding.
Mark Erikson is the primary maintainer of Redux and creator of Redux Toolkit - the tools that power state management in millions of React applications worldwide. Known online as @acemarke, he became the de facto keeper of Redux in 2016 when Dan Abramov handed off the project. Since then, he has rebuilt Redux's documentation from the ground up, designed the hooks API in React-Redux, and created Redux Toolkit to eliminate the boilerplate that once made Redux notorious. He is a Senior Front-End Engineer at Replay.io and a tireless community fixture - answering questions on Discord, Reddit, Bluesky, and anywhere else developers congregate online.
Rauno Freiberg is an Estonian Staff Design Engineer at Vercel who blurs the line between design and engineering with surgical precision. Known for his obsession with invisible details - the micro-interactions, animations, and tactile feedback that make software feel alive - he built cmdk (downloaded millions of times weekly), wrote the seminal 'Invisible Details of Interaction Design' essay, and created Devouring Details, an interactive design education platform. He previously shaped the Arc browser at The Browser Company. His philosophy: code is the material, and mastery of HTML, CSS, and JavaScript is the only honest path to great interfaces.
Sarah Drasner is a Senior Director of Engineering at Google, where she leads the Core Developer Web Infrastructure powering Search, YouTube, Gmail, and Workspace. A rare hybrid of fine artist turned technologist, she spent 15+ years shaping how the web moves - as a Vue.js core team member, staff writer at CSS-Tricks, creator of the Night Owl VS Code theme (used by millions), and author of both 'SVG Animations' (O'Reilly) and 'Engineering Management for the Rest of Us'. Before Google, she was VP of Developer Experience at Netlify and a Principal Lead at Microsoft Azure. She is an award-winning speaker, teacher on Frontend Masters, and co-organizer of ConcatenateConf, a free conference for Nigerian and Kenyan developers.
Scott Tolinski is a web developer, podcaster, and educator best known as co-host of Syntax.fm - widely regarded as the most popular web development podcast in the world. He founded Level Up Tutorials in 2012 after a breakdancing injury sidelined him, building it into a library of 2,000+ video tutorials with 350,000+ subscribers before it was acquired by Sentry. Now serving as Executive Producer at Sentry, Scott co-hosts Syntax alongside Wes Bos, releasing two episodes per week covering JavaScript, SvelteKit, CSS, and modern web development. Outside the keyboard, he is a dedicated B-boy (breakdancer) and avid snowboarder based in Denver, Colorado.
Tanner Linsley is a Salt Lake City-based software engineer, open source creator, and founder of TanStack - the ecosystem behind React Query, TanStack Router, TanStack Table, TanStack Form, and TanStack Start. Co-founder of Nozzle.io, an enterprise SEO platform, Tanner built a multi-million-download open source empire by solving real problems he faced every day, pioneering headless, framework-agnostic, fully type-safe libraries now used by Fortune 500 companies including Apple, Google, Facebook, Amazon, Netflix, Walmart, and Target.
Una Kravets is a Staff Developer Relations Engineer at Google Chrome, leading the UI & Tooling DevRel team. She is one of the most influential voices in modern CSS and web standards, having championed features like container queries, anchor positioning, scroll-driven animations, and customizable select menus. A prolific speaker at 80+ conferences worldwide, co-host of The CSS Podcast, and creator of CSSgram, Una bridges the gap between browser engineering and the developer community with a mission to make the web platform better for everyone.
Vercel is the AI Cloud for frontend developers - a platform that makes deploying web applications as frictionless as a git push. Founded in 2015 as ZEIT by Guillermo Rauch, the Argentine-born dropout who also created Socket.IO and Next.js, Vercel grew from a side-project deployment tool into a $9.3 billion company powering websites for OpenAI, Walmart, Nike, and thousands of startups. Its open-source framework Next.js has logged over 500 million downloads in 12 months alone, and its AI tool v0 lets anyone turn a text prompt into a working web UI. Vercel is the company betting that the next billion developers won't write code at all.