Mobile On-Site & In-Office Test Technician. We're looking for an energetic and enthusiastic drug & alcohol collector to conduct testing both in our office (Ft. Lauderdale) and on-site with our clients (Tamiami, Miami, Opa-Locka). Multiple Positions Available. Part-Time Mobile On-Site Collector Only - Very Flexible - Choose your own hours. Full-Time In-Office & On-Site Collector (vehicle provided) - 40/hr/week. Duties. Perform testing and troubles...