Our Team

Calum Arnott

Managing Director / Co-Founder

Calum leads the team, leveraging his experience developing UAVs for a wide-range of customers to direct Lerta’s product strategy and achieve the business goals. He loves to get his hands dirty prototyping in Lerta’s workshop.

Calum is also a PhD researcher in AI and Robotics, with a first-class master’s degree in Mechanical Engineering from the University of Edinburgh.

Josh Ball

Operations Director / Co-Founder

Josh is leading Lerta’s operational and commercial strategies, bringing his proven experience of delivering financial technology solutions to Private Equity, Credit, and Insurance clients.

Josh holds a first class MA (Soc Sci) (Hons) in Economics from the University of Glasgow.