• Building a new engineering culture with incredible engineers
• Building highly available React/Redux Apps on incredible stack
• Hack-a-thons, Experimenting, Engineer Bootcamp
• Author of ‘Developing a Redux Edge, O’Reilly Media’
• Previous: Large Scale Things @booking.com (Amsterdam, NL)
• 700,000+ transactions/day
• Rapid UI & UX development, experimenting (me: shipping 30 features
in 2 week period to millions of users with zero issues)
• Ran conclusive A/B tests worth $1,500,000 / day, quarter over quarter
Data team, Mobile
2012: future Zeek already been done did this
2013: You're crazy to build web apps.
2015: You guys are visionaries.
2016: Progressive web apps are kind of a thing.
2017: Time to take over the world
2018: future future Zeek continues to chuck middle ﬁnger at naysayers
real world examples
• Northwestern Mutual (is cool
• Large numbers are the accumulation of small
• Performance is about perception (curb a users
• Perf ﬁrst, customer experience is more important than
• Lighthouse (demo)