JT - Founder & CEO

JT is a former cyber security consultant (Deloitte),  data privacy director (Exonar) and technology commentator (Sky News - watch here). An Aston Villa fan, a cat person, a tea drinker, a bar stool philosopher, and a believer in the democratisation of power through data. 👻


JT was a founding member of the New College of the Humanities in 2012 where he was taught by Professors AC Grayling, Richard Dawkins, Steven Pinker, Peter Singer, Lawrence Krauss, Ronald Dworkin, Niall Ferguson, Daniel Dennett & Vernon Bogdanor 👨🏻‍🏫

Sophie - Chief Product Officer

Sophie is a Dr of cognitive neuroscience, a data scientist, and also a cat person 😸 When Sophie's not working on developing the Joyn platform you can find her at the beach or taking photos of food or cats 📸

Sophie wants to encourage neurodiversity, digital literacy and reduce social division through the design and implementation of Joyn and Joyn Kids.

John - Chief Technology Officer

John is passionate about the Internet’s future; one that is soon to be realised. He designs & builds systems that decentralise and democratise the power of data in order to empower new communities, preserve commonly understood truths, and break unfair technology power structures that unfairly hold consumers hostage.


John is specifically experienced working with Hedera Hashgraph distributed ledger technology - which Joyn is being built on.


You'll find him moving across the globe (slowly) on a sailboat or on a surfboard - a self-proclaimed Citizen of the Planet, as he believes we all are!

Adonis - Content Marketing Guru

I'm Adonis Sarmas and I love freedom of expression. Whether that's music, video or photography 📸 I was born in Germany in 1996. I grew to love arts and creative thinking therefore I studied Interior Design for four years, and music for ten years. And I have more than 100,000 photo clicks. I'm an active guitar teacher 🎸, photographer, and a videographer for Joyn Social Media and Epic Athens.


My favourite bands: Metallica & Volbeat. My favorite books: ”Emotional Intelligence" by Daniel Goleman and "Norse Mythology" by Neil Gaiman... I'm Good Behind The Camera..!📹