I'm an author, software development consultant and once a business co-founder.
Some of the things I've created:
I co-founded a company to visualise geospatial data for the heavy construction industry in order to improve safety and productivity when building roads, tunnels and other infrastructure. Prior to that I worked on a wide range of software, from early mobile applications back in the days of Palm Pilot and Windows CE, to a flight simulator to guidance software for construction machinery like bulldozers, excavators and even self-driving kerb laying machines (which are massive things 4 metres tall!).