Jonathan Klein

Jonathan Klein



Jonathan is a software engineer at Etsy, where he focuses on solving web performance and scalability challenges. Prior to working at Etsy he spent almost four years at Wayfair, where he led the team that converted the primary tech stack to PHP/Lighttpd/FreeBSD. He started and organizes the Boston Web Performance Meetup Group, and he contributes to a few open source projects, including the HTTPArchive and CSSLint. Jonathan blogs regularly at and can be found on Twitter at @jonathanklein.


High Performance PHP

This talk will cover tips and tricks for speeding up your PHP application – everything from micro optimizations at the code level to how many child processes you should be running on your webserver. You will also learn about profiling your code and load testing your application, so you can be confident that it will […]

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