If I'm speaking at a conference you're organizing, then you can use the following information for your conference's website and agenda.
Name and title:
John Sundell, Creator of Swift by Sundell
John builds apps, games & developer tools. He also makes Swift by Sundell - a series of weekly articles and a podcast about Swift development, and co-hosts the Stacktrace podcast. He has worked for companies like Volvo & Spotify, and is now working full-time on creating apps, tools and content for the Swift community.