Grease Masters Field Service Technician

Grease Masters Field Service Technician (CDL Driver)

Join to apply for the Grease Masters Field Service Technician role at Liquid Environmental Solutions.

• Company: Grease Masters — A Liquid Environmental Solutions Company
• Compensation:
  • Class B: starting at $26.50/hr
  • Class A: starting at $28.50/hr
  • Ask if you qualify for a $2,500 sign‑on bonus!
• Schedule: Monday–Friday (40–50 hours per week), some Saturdays as required
• Start Time: 5 AM (route completion may take 10 to 12+ hours)
• Location: 1818 Scherer Pkwy, St Charles, MO 63303

Grease Masters has been a trusted local provider of grease trap service, liquid waste collection, and environmental solutions throughout St. Louis for years. Today, Grease Masters operates as a Liquid Environmental Solutions company, combining the reputation of a local service provider with the resources, safety programs, fleet investment, and environmental mission of a national leader.

As a Field Service Technician (FST), you will support local customers in the restaurant, food service, industrial, and commercial sectors while being home every day. You’ll operate modern vacuum and tanker trucks, deliver professional service, and play a critical role in protecting public health and the environment.

• Safely drive and operate vacuum or tanker trucks to service grease traps, used cooking oil bins, and liquid waste containers
• Complete assigned route, document service results, and return to the home terminal daily
• Maintain compliance with DOT, state laws, and company safety requirements
• Handle loading/unloading procedures to prevent spills and ensure clean, compliant service
• Represent Grease Masters professionally to customers and facility contacts
• Complete manifests, logs, bills of lading, and service records accurately
• Maintain vehicle cleanliness, equipment readiness, and safety inspections
• Report equipment, route, or customer issues promptly to dispatch or management
• Work as a reliable team member and assist with operational duties as needed

• Valid CDL Class A or Class B license
• Tanker endorsement and airbrake endorsement required at start
• Minimum of 1 year commercial (or military) driving experience
• Ability to lift 55 lbs or more
• No more than two moving violations in three years
• No more than one DOT‑recordable accident in three years
• DOT medical qualification required
• Reliable, safety‑focused, and able to work early morning start times
• Vacuum truck experience and manual‑transmission (10‑speed) experience strongly preferred
• Must be legally authorized to work in the United States
• Must register with FMCSA Clearinghouse

• Local work — return home daily
• Hourly pay plus overtime
• Stable, consistent scheduling and routing
• Industry‑leading trucks, safety gear, and technology
• Full benefits package:
  • Medical, dental, and vision insurance
  • 401(k) with company match
  • Paid holidays, vacation, and PTO
  • Company‑paid life insurance
  • Referral bonus program
• National support with local identity, customer familiarity, and upward mobility

• Prefer local work over long‑haul and overnight trips
• Appreciate structured routes and predictable hours
• Value being part of an environmental services mission
• Take pride in doing hands‑on, essential, sanitary work for their community
• Want stability, benefits, and a supportive team culture
• Enjoy working independently and getting the job done right

Grease Masters — a Liquid Environmental Solutions Company — is committed to employing a diverse workforce. Qualified applicants will receive consideration without regard to race, color, religion, sex, national origin, age, sexual orientation, protected veteran status, disability, or other protected categories.