the web performance conference8-9 November 2018, Amsterdam

Speakers is a single track conference with sixteen world-class speakers covering today’s most important web performance insights. They are selected by our program co-chairs Steve Souders and Tim Kadlec.

Below you find the confirmed speakers. Five more are to be announced. All sessions are geared toward delivering takeaway action items for teams creating fast web experiences across all devices.

Yoav Weiss

Akamai, @yoavweiss

Yoav is a principal architect at Akamai, where he focuses on making the web platform faster by adding performance-related features to browsers as well as to Akamai’s CDN. Yoav has been working on mobile web performance for longer than he cares to admit.

He takes image bloat on the web as a personal insult, which is why he joined the Responsive Image community group and implemented the various responsive images features in Blink and WebKit.

When he’s not writing code, he’s probably slapping his bass, mowing the lawn in the French countryside, or playing board games with his family.

Natasha Rooney

GSMA, @thisNatasha

Natasha has been both a web and application developer before becoming Director of Internet Engineering providing expertise on web technologies and internet protocols to the telecoms industry. She attends W3C and IETF working with both standards bodies to support and make recommendations for better user experiences on mobile and across the mobile network. She is a member of the W3C Advisory Board and the Stack Evolution Group at IETF. She is currently obsessed with TCP congestion control techniques, Japanese video games, and runs her own YouTube channel on travel particularly across Japan.

Anna Migas

Lunar Logic, @szynszyliszys

Anna works as a Front-end Developer and Designer at Lunar Logic, the no-management software house based in Kraków, Poland. She is always trying to find ways to make people fall in love with coding and has a long history of organizing coding workshops for WebMuses and Rails Girls. She recently gained a title of Google Developer Expert. In her spare time she is skateboarding, travelling and reading sci-fi and fantasy books.

Tim Kadlec

Independent, @tkadlec

Tim is a performance consultant and trainer focused on building a web everyone can use. He is the author of High Performance Images (O'Reilly, 2016) and Implementing Responsive Design: Building sites for an anywhere, everywhere web (New Riders, 2012), and was a contributing author for Smashing Book #4: New Perspectives on Web Design (Smashing Magazine, 2013), and the Web Performance Daybook Volume 2 (O'Reilly, 2012). He writes about all things web at You can find him sharing his thoughts in a briefer format on Twitter at @tkadlec.

Harry Roberts

Independent, @csswizardry

With a client list including Google, Unilever, and the United Nations, Harry is an award-winning Consultant Front-end Architect who helps organisations and teams across the globe to plan, build, and maintain product-scale UIs.

A Google Developer Expert, he writes on the subjects of CSS architecture, performance, and scalability at, develops and maintains inuitcss, authored CSS Guidelines, and Tweets at @csswizardry.

Paul Irish

Google, @paul_irish

Chrome developer tools aficionado (understatement) and Google web performance engineer, will present web performance metrics and measurements in 2018.

Steve Souders

SpeedCurve, @souders

Steve works at SpeedCurve on the interplay between performance and design. He previously served as Google's Head Performance Engineer, Chief Performance Yahoo!, and Fastly's Chief Performance Officer. Steve pioneered much of the work in the world of web performance. He authored High Performance Web Sites and Even Faster Web Sites. He created many performance tools and services including YSlow, HTTP Archive, Episodes, ControlJS, and Browserscope. Steve taught CS193H: High Performance Web Sites at Stanford and served as co-chair of Velocity, the web performance and operations conference from O'Reilly.

Katie Sylor-Miller

Etsy, @ksylor

Katie is a Staff Software Engineer on the Frontend Systems team at Etsy, where she advocates for and implements frontend best practices in collaboration with product engineers and designers. She is passionate about frontend architecture, design systems, style guides, accessibility, frontend performance, and teaching others. Katie recently co-authored the Design Systems Handbook and is participating in the Pastry Box Project, but her proudest accomplishment is creating to share her hard-won knowledge of how to get out of your git messes with a bit of humor (and a lot of swears).

Andrew Betts

Fastly, @triblondon

Andrew is a web developer and principal developer advocate for Fastly, working with developers across the world to help make the web faster, more secure, more reliable and easier to work with. He founded a web consultancy which was ultimately acquired by the Financial Times, led the team that created the FT’s pioneering HTML5 web app, and founded the FT’s Labs division. He is also an elected member of the W3C Technical Architecture Group, a committee of nine people who guide the development of the World Wide Web.

Tammy Everts

SpeedCurve, @tameverts

Tammy is chief experience officer at SpeedCurve, where she helps companies understand how visitors use their websites, and a cochair of O’Reilly Fluent. Tammy has spent the past two decades studying how people use the web. Since 2009, she’s focused on the intersection between web performance, user experience, and business metrics. Her book, Time Is Money: The Business Value of Web Performance from O’Reilly, is a distillation of much of this research. She also cocurates (with Tim Kadlec) WPO Stats, a collection of performance case studies.

Zach Leatherman

Filament Group, @zachleat

Zach is a Web Developer with Filament Group. He’s fixated on web fonts, static site generators, the open web and open source. His public speaking résumé includes talks at Smashing Conference, O’Reilly Velocity, CSSConf, and the Obama-era White House. He also herds the NebraskaJS meetup and NEJS CONF.