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GFL

North American waste collection, disposal, recycling

Diesel Technician

Heavy Duty & Diesel Vehicle MaintenancePosted on Nov 9
Full-timeTulsa, OK, USANo salary listedIn-person

About the Job

Requirements

  • Knowledge of Department of Transportation, Occupational Safety and Health Administration, and related state and federal regulations.
  • A Brake Safety Certificate and 609 air-conditioning system certification are required.
  • Ability to understand and interpret detailed schematics and manuals.
  • Ability to communicate effectively across organizational levels and with customers and external vendors.
  • Ability to read, analyze, and interpret safety rules, operating and maintenance instructions, and procedural manuals.
  • Experience using diagnostic software; computer literacy and willingness and ability to be trained in software systems.
  • Class A or B Commercial Driver’s License preferred, or willingness and ability to obtain one within six months of employment.
  • At least five years of diesel and compressed natural gas maintenance experience.
  • Ability to stand, sit, walk, use hands and fingers, reach, stoop, kneel, crouch, crawl, talk, hear, climb, and balance.
  • Continuous concentrated mental and visual attention is required, including close, distance, color, peripheral, and depth vision and the ability to adjust focus.
  • Ability to operate trucks and other equipment as needed.
  • Ability to use a computer and related devices, such as a keyboard or mouse, throughout the workday while seated at a desk or workstation.
  • Ability to climb ladders, bend, or stand for long periods.
  • Ability to reach above shoulders, lift up to 50 pounds, and push or pull up to 100 pounds.

Responsibilities

  • Diagnose, repair, and perform preventive maintenance on diesel and compressed natural gas vehicles to maintain the fleet in safe, road-ready condition.
  • Diagnose and repair diesel and compressed natural gas trucks, including engines, electrical systems, propane systems, hydraulics, and fuel systems.
  • Independently lead inspections of brake systems, engine components, emission systems, steering mechanisms, wheel bearings, and other parts to ensure proper operating condition.
  • Provide guidance and mentorship to level B and C mechanics.
  • Prioritize repairs to maximize efficiency and timely completion of work orders.
  • Oversee review of mechanical write-ups on equipment and coordinate repair schedules.
  • Perform Department of Transportation and brake inspections on all vehicles.
  • Complete reports and work orders, order parts, and perform other required daily administrative duties.
  • Ensure safe working conditions and compliance with all safety regulations.
  • Understand and interpret intricate electrical and diagnostic schematics.
  • Participate in training classes and development opportunities to increase skills and working knowledge.
  • Maintain a clean work area.

Desired Qualifications

  • ASE certifications are preferred.

About the Company

GFL

North American waste collection, disposal, recycling

GFL Environmental provides North American waste services with a vertically integrated model that collects, hauls, transfers, recycles, and disposes of waste. It owns and operates transfer stations, material recovery facilities, landfills, and liquid-waste treatment plants to manage the full cycle and control costs; revenue comes from municipal contracts, commercial/industrial services, tipping fees, and the sale of recyclables. The company differentiates itself by growing through hundreds of acquisitions to build density and scale across Canada and the U.S., and it divested soil remediation in 2025 to focus on high-margin solid-waste operations. Its goal is to deliver reliable, cost-efficient waste services at scale while reducing debt and expanding its solid-waste footprint.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Houston, TX
Founded
2000

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