top of page

Our Team

We're a small team dedicated to helping people achieve net zero emissions through lifestyle changes.


Lily Dempster

Founder & CEO

Lily is the Founder & CEO of One Small Step. She previously worked as GetUp's former Market Impact Director where she ran digital consumer campaigns that switched thousands of Australians to zero carbon energy products online. She is a highly experienced grassroots environmental campaigner and an expert in behaviour change, sustainability, and climate change mitigation, with a background in political science, public policy and law. 


Marc Stringer

Tech Lead

Marc studied a Masters of Electrical Engineering at the University of Melbourne. Since then, he has worked in start-ups, including an Internet of Things (IoT) consultancy, and has previously founded a medical device company. Marc is passionate about project management and app development, helping to ensure the quality and progression of the One Small Step app.



Bryan Rollins

Advisor: Product

Bryan is currently the Operator-In-Residence at Grok Ventures. He has worked in new technology ventures his entire career and was the former General Manager of Jira at Atlassian. He’s an expert product manager, and has previously founded his own company. Bryan is passionate about working with companies like One Small Step who are using tech to help combat climate change in Australia.


Jason Serafino

Advisor: Tech

Jason is an experienced product and technology leader who is passionate about helping businesses achieve breakthrough innovation and growth. He previously held senior executive roles in financial services and has founded several companies. Currently, Jason works as the CTO of fin tech company, Credit Clear. As One Small Step’s tech advisor, Jason brings his knowledge in launching products & scaling high performing technology teams. 

bottom of page