181 – Chris Lorenz 🍊 DevFest Florida 2019

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Chris has worked at Comcast since 2007 – currently as a Distinguished Engineer. He enjoys building/motivating teams and ramping up new projects including XFINITY Home and XFINITY xFi using the latest patterns and web primitives. Besides coding in Javascript, he loves spending time with his wife and two children and helping out in the community.

Talk: Performance Optimizations for Progressive Web Apps

Struggling to get your website to load in less than 5 seconds on a mobile phone? Switching pages are a little sluggish? You’re not alone! Most web developers can build a responsive site, but fail to meet performance requirements for mobile. Using the latest PRPL pattern and Progressive Web API’s, you can provide a compelling alternative to native apps, as long as performance remains your top feature.

This talk will cover the architecture for Xfinity xFi, an enterprise PWA for Comcast, built with Google Polymer. We’ll then dive into the Chrome performance tools to optimize xFi loading time down by more than half. You’ll walk away knowing what it takes to create a successful PWA and how to find slow downs in your app startup.

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