Field Service Technician (FST) – Grease & Grit / Oil-Water Separator (OWS)

If you’re a CDL driver looking for more than just another driving job, Liquid Environmental Solutions (LES) offers a career path—not just a seat behind the wheel. As a Field Service Technician (FST), you’ll combine your driving skills with hands-on, high-value service work that keeps essential businesses running while helping reclaim non-hazardous liquid waste for safe transport and processing. This is a role where you’re not just a driver—you’re a trained professional solving real problems, protecting the environment, and playing a direct role in a critical service industry. You’ll earn strong, reliable pay while building skills that increase your value over time. Many of our top performers advance into higher-level roles such as FST II and FST III, taking on more complex work, expanding their skillsets, and increasing their earning potential. With steady year-round work, modern equipment, and clear opportunities to grow, LES is the place for drivers who want stability, respect, and a true path forward.

The Field Service Technician (FST) is responsible for operating specialized vacuum truck equipment to service wastewater systems and environmental infrastructure across commercial, industrial, and municipal customer sites. This position requires a strong focus on safety, mechanical awareness, and customer service, as well as the ability to work independently in the field.

Location / Yard:

11170 SW Elligsen Way, Sherwood, OR 97140

Position Summary

Liquid Environmental Solutions is seeking a self-motivated Field Service Technician (FST) to support a combination of grease trap service and cross-trained Oil-Water Separator (OWS) / grit service.

This role is ideal for a self-starter who is comfortable working independently, managing long routes, and supporting both commercial and industrial customers. The position operates specialized service vehicles and equipment and requires a CDL Class A with manual transmission.

Compensation:

• Starting Pay: $33.00 per hour
• Sign-On Bonus: $5,000 

Essential Job Functions

• Perform scheduled overnight grease trap service for restaurant customers throughout Oregon
• Cross-train and assist with service of grit systems and oil-water separators (OWS)
• Support OWS service operations across OR, WA, ID, and MT as needed
• Operate vacuum trucks and related equipment in accordance with company safety and operating procedures
• Remove liquid and solid waste materials, including grease, sludge, sand, and compacted solids
• Perform visual inspections of systems and identify abnormal conditions, damage, or service concerns
• Conduct manual removal of material when vacuum service alone is insufficient
• Accurately complete service documentation, including job notes, volumes, and site observations
• Communicate professionally with restaurant staff, industrial site personnel, and customer representatives
• Follow all site-specific safety rules, PPE requirements, and access procedures
• Ensure compliance with environmental, safety, DOT, and transportation regulations
• Maintain cleanliness and basic upkeep of assigned vehicle and equipment

Work Environment

• Restaurant, commercial, industrial, and outdoor environments
• Exposure to odors, weather conditions, kitchen areas, and industrial settings
• Work may involve confined or controlled-access areas
• Required use of PPE and safety equipment

Physical Requirements

• Ability to perform physically demanding work, including frequent heavy lifting and extended hose handling
• Ability to manually remove grease and compacted solids from traps, pits, sumps, or troughs as required
• Frequent standing, walking, bending, climbing, and working around industrial equipment
• Ability to work extended routes and varying weather conditions

Qualifications

• Valid CDL Class A required
• Manual transmission endorsement required
• Ability to safely operate service vehicles and vacuum equipment
• Self-starter with the ability to work independently on overnight routes
• Mechanical aptitude and comfort working with both commercial and industrial systems
• Strong attention to detail and ability to follow procedures
• Professional communication and time-management skills

Preferred Experience (Not Required)

• Grease trap or interceptor service experience
• Oil-water separator or grit system service experience
• Vacuum truck or similar equipment operation
• Experience working in regulated, safety-sensitive, or multi-site environments

Position Expectations

• Combination role supporting both grease and grit / OWS services
• Primarily overnight grease routes with cross-trained industrial service support
• Requires flexibility, independence, and comfort with travel
• Physically demanding at times, with variation based on route mix