May 24-26, 2017 in Warsaw, Poland


Maciej is a web developer at the core, who often speaks out from his vantage point of tech entrepreneur, social critic, and writer. His occasional editorials have been featured in Wired and The New York Times.

After leaving Yahoo in 2009, where he worked as a backend developer for a visual airfare search engine called FareMaps, Maciej founded Pinboard—the so-called “anti-social” bookmarking service for introverts.

As an independent contractor, Maciej’s projects have included designing and building an internal data warehouse for Twitter, in addition to building an online book reader, Otwórz Książkę, at the University of Warsaw.

Maciej originally hails from Poland and is currently based in San Francisco, California.

Lin Clark is a code cartoonist; she stuffs her head full of coding minutiae and then turns it into Code Cartoons to help other developers understand programming concepts better.

Lin has been contributing to open source for almost a decade. Her involvement has ranged from working as the dev star at npm to being a core module maintainer for Drupal. Her current project is a book, A Cartoon Guide to ReactJS. In her nonspare time, she is a senior engineer on Firefox developer tools.

Jack is a Senior JavaScript Developer at Songkick working on React and Angular applications where he splits his time between new features, refactors and work on optimising builds. If he's not doing that he's usually obsessing over his Vim configuration or writing for his blog, JavaScript Playground.

He's the author of "Beginning jQuery" (Apress, 2012) and speaks at conferences on all things front-end, including build tools, frameworks and even new languages like Elm.

Vitaly Friedman loves beautiful content and does not give up easily. From Minsk in Belarus, he studied computer science and mathematics in Germany, discovered the passage a passion for typography, writing and design.

After working as a freelance designer and developer for 6 years, he co-founded Smashing Magazine, a leading online magazine dedicated to design and web development.

Vitaly is the author, co-author and editor of all Smashing books. He currently works as editor-in-chief of Smashing Magazine in the lovely city of Vilnius, Lithuania.

Based in Berlin, Ola is a lead developer at Styla. She is very passionate about Open Source, the Offline First concept and empowering people. Ola loves making the web accessible for everyone, riding the trails, and daughter-driven development.

Zoe is a web designer and developer specializing in responsive web design, user experience, and web accessibility techniques to maximize usability, device compatibility, and awesomeness. She loves creating sites that work for as many people and devices as possible.

She is an experienced web designer and technical author who specializes in visual design, CSS, UX, and accessibility. She is the author of the New Riders books Stunning CSS3: A Project-based Guide to the Latest in CSS and Flexible Web Design: Creating Liquid and Elastic Layouts with CSS, the flexbox chapter in Smashing Magazine’s Real-Life Responsive Web Design book, and the video training title Web Accessibility Principles for She currently works as a senior designer for in Amsterdam, where she gets to have fun with data-driven UX and visual design, HTML and CSS development, and riding her bike without the wind knocking her over.

Patrick is a senior engineer at the Financial Times in London where – amongst other things – he is helping to build the next generation of their web platform. Prior to the FT he spent had the last 3 years developing When not speaking or ranting about performance he enjoys spending his spare time discovering new food and craft beer.

Val is a web animation expert with a talent for getting designers and developers alike excited about the power of animation. She is the author of CSS Animation on, and Designing Interface Animation.

Val shares her passion for web animation as the host of the All The Right Moves screencast, co-host of the Motion and Meaning podcast, and curator of the weekly UI Animation Newsletter.

A proud supporter of the web community, she co-founded the Web Design Day conference and runs Pittsburgh’s Girl Develop It Chapter.

Una is a UI Engineer on the Creative Engineering team at DigitalOcean. She’s a technical writer, having written for various online publications such as A List Apart, Smashing Magazine, and Sitepoint.

Una also co-hosts the Toolsday podcast and started both the Washington DC and Austin, TX Sass Meetups. She's a web performance nerd who loves the open source community and listens to way too many audio books.

Chris is a front-end developer at Campaign Monitor in Sydney, where he makes software which simplifies creating elegant email campaigns.

He loves writing about and experimenting with CSS and learning in the open. He is interested in the bridge between web disciplines and how we can create better cross-functional teams with shared understanding. He loves hiking and enjoys experiencing the great outdoors.

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