15- First responder
16- EMT/junior firefighter
18- Promoted to volunteer EMS lieutenant on my 18th birthday; EMT-Intermediate that spring (same week I graduated high school); BLS supervisor on paid service after everyone above me in seniority quit. At the end of the year I moved to working for my medical director as a quality control officer and supervisor at a service he was having problems with.
19- Volunteer EMS Captain
20- Burned out the first time; went into military and became a respiratory therapist/echocardiographer