David started his fire career at Collinsville Rural Fire in 1993. He received his EMT license in 1994 and continued as a firefighter at Northwest Fire Department where he was promoted to Fire Chief in 2006.
David started working part-time at Mercy Regional EMS in 2007 as an EMT and Emergency Medical Dispatcher and full-time in 2015 after retiring from the fire service after 22 years.

David is a supervisor at Mercy Regional EMS. In addition to his supervisor role, David oversees the recruiting, interviewing, and hiring of staff. David handles compensation, benefits, employee relations, and payroll, among other HR functions for Mercy Regional EMS.