John David has over 15 years of experience in data analytics, IT support, and database engineering. He holds a Higher Diploma in Data Analytics and BSc in Transport Operations and Technology from the National College of Ireland and Dublin Institute of Technology, respectively. His past roles include providing IT support at a college helpdesk, designing and maintaining SQL databases as a Database Engineer at Dell Computer, and using Excel, Access, Python, R, and other tools to analyze data and build data warehouses and data marts.