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 weekly blog & podcast about Swift development, and co-hosts the Stacktrace podcast. He has worked for companies like Volvo & Spotify, and is now an iOS freelancer. He’s the creator of several open source projects and loves to share his work with other developers.