Hello 👋 !
I am a software engineer and technical leader, currently working on ad solutions at Meta.

Q&A with Vitaly Friedman after presenting at PiterCSS 2018 (source)
I am a Business Engineer at Meta, where I technically lead the ads signals & measurement program: a portfolio of 16+ initiatives and 20+ engineers, including the catalog data-quality tooling that supports more than 2,000 Meta colleagues. I do it remotely from Alicante, in south-east Spain.
Before that I was a Solutions Engineer at Meta in Stockholm, helping advertisers across the Nordics and Iberia with their commerce and measurement integrations. And before Meta, I spent nearly seven years at Spotify: building the Web Player, leading its engineering as technical product owner and engineering manager, and running developer outreach for the Spotify Web API. Somewhere along the way I cut the loading time of the Spotify Play Button in half.
My background is web performance, and it is still the lens I use to look at almost everything. I am part of PerfReviews and of the WebPerf Impacters podcast (also on Apple Podcasts), contributed to the Web Almanac, and I am a Google Developer Expert in Web Technologies. I also speak at conferences and meetups and work on side projects.
Contact
Want to talk about measurement engineering, web performance, a talk or a project? Send me an email, or find me on LinkedIn or Twitter.
More info about me?
You can follow me on Twitter at @jmperezperez, where I post about web development, or check my GitHub, LinkedIn or StackOverflow profiles.
This page is also available in Spanish.