Demo

Senior Diesel Mechanic

EG America
Westborough, MA Full Time
POSTED ON 10/18/2026
AVAILABLE BEFORE 11/15/2026

Are you curious about solving complex business challenges for a leading convenience retailer?  Do you have a passion for cross functional collaboration?  Then you may be the perfect addition to our team! 

Cumberland Farms is one of the fastest-growing convenience retailers in the United States, committed to becoming America’s #1 ‘one-stop’ destination. The business has an established pedigree of delivering excellent fuel, grocery and merchandise, and food service. Headquartered in Westborough, Massachusetts, our Company has grown to over 1,500 locations across the United States employing over 18,000 team members.  You can find us operating under the following store banners: Certified Oil, Coen Markets, Cumberland Farms, Fastrac, Kwik Shop, Loaf N Jug, Minit Mart, Sprint Food Stores, Tom Thumb, Turkey Hill, and Quik Stop. Our US headquarters in Westborough, MA is home to our Store Support Center, Company Warehouse, and Culinary Center.
 

What We Offer:

  • Competitive Wages
  • Work today, get paid tomorrow through our earned wage access program*
  • Paid Time Off
  • Medical/Health/Dental Coverage
  • 401K with Company Match
  • Team Member Discounts
  • Tuition Reimbursement
  • Employee Assistance Program
  • Health Savings Account
  • Company Spirit Days
  • Employee recognition and awards
  • And much more!

 

Position Summary: The Senior Diesel Mechanic Technician is responsible for the maintenance, repair, and inspection of the vehicles and equipment within the fleet. This role requires a strong understanding of specialized methods and technical requirements, as well as the ability to diagnose and troubleshoot mechanical issues required to maintain our diverse fleet. The Senior Diesel Mechanic Technician will ensure that all vehicles are safe, reliable, and compliant with industry standards. At Cumberland Farms you’ll be exposed to our diverse fleet. You may work on (but not limited to) the following equipment: PACCAR, Hino, Carrier, Thermo King, Great Dane and Hyundai.

 

Responsibilities:

  • Perform preventive maintenance, diagnostics, troubleshooting, and repairs on Class 8 trucks, MC406 petroleum tank trailers and refrigeration trailers.
  • Able to manage all daily operations of your dedicated shift with little to no supervision.
  • Maintain preventive maintenance schedules to maximize equipment reliability and minimize downtime.
  • Ensure all equipment complies with DOT, FMCSA, OSHA, EPA, and applicable hazardous materials and FSMA regulations.
  • Inspect, repair, and maintain petroleum tank trailer components, including valves, vapor recovery systems, emergency shutoffs, and loading/unloading equipment.
  • Inspect, repair, and maintain refrigerated trailer components, reefer units, tailgates, ramps door components.
  • Diagnose and repair diesel engines, transmissions, brakes, suspension, steering, electrical systems, air systems, and hydraulic components.
  • Maintain accurate maintenance records, repair histories, inspection documentation and parts usage.
  • Coordinate with vendors and outside repair facilities when specialized repairs are required.
  • Maintain a clean, organized, and safe shop environment.
  • Respond to emergency roadside breakdowns and prioritize repairs to minimize operational disruptions.
  • Recommend equipment replacements, and maintenance strategies to improve fleet performance and reduce operating costs.

Working Relationships: Daily interaction with driver managers, drivers, outside vendors, logistics team, fleet technicians and management personnel

Minimum Education: High School Diploma or GED equivalent.    

Preferred Education: Graduate of a Technical Institute with primary focus in diesel engine repair.  

Minimum Experience:

  • Minimum of 3-5 years of heavy-duty truck maintenance experience, with experience maintaining Class 8 diesel trucks.
  • Experience servicing MC406 petroleum tank trailers or similar hazardous materials cargo tanks.
  • Strong knowledge of diesel engines, air brake systems, electrical diagnostics, emissions systems, and trailer repair.
  • Ability to diagnose mechanical and electrical issues using diagnostic software and testing equipment.

Preferred Experience:

  • Thorough understanding of DOT, FMCSA, cargo tank inspection, and hazardous materials regulations
  • Welding and fabrication experience
  • Valid CDL (or ability to obtain one)
  • Excellent leadership, communication, problem-solving, and cross-functional collaboration skills.

Licenses/Certifications: ASE Medium/Heavy Truck Certification. DOT Inspector Certification (preferred). Brake Inspector Certification. Tank Trailer Maintenance or Inspection Certification (preferred). Transportation Worker Identification Credential (TWIC) required.

Soft Skills/Competencies: Ability to multi-task, prioritize, problem solving and decision-making skills.  Strong organizational and time management skills.

Travel: Occasional travel to other company maintenance facilities for training or coverage

Hours & Conditions: Four-day, ten-hour shift schedule to include one weekend day. Holidays required when falling on a scheduled workday

Physical Requirements:   Walk/stand on concrete. Bend, stoop, crouch, kneel and crawl to repair units. Reach below and above shoulder height to repair units. Use of hand power and air tools is required. Climb, stand and balance on ladders or units to perform repairs. Insert hands into confined areas to repair units. Work above shoulders in cervical extension from stand, bend, stoop, crouch, kneel. Work under units while they are on hoist or shop floor. Able to lift 75lbs.  

At Cumberland Farms, it’s important that our employees reflect the world we live in and the communities we serve. We celebrate our differences, so your unique background and skillset could bring a wonderful new perspective to our team. If you have a passion for delivering exceptional results, thrive in a fast-paced corporate environment, and bring experience in business management or related areas, we'd love to meet you - even if you don't meet every single requirement.

Consistent with Massachusetts Pay Transparency Law, we’re sharing the base salary range for this position. Final pay within this range will be based on your skills, experience, and qualifications. Base pay represents just one part of our total rewards approach. We’re proud to offer a variety of financial and non-financial benefits that invest in your overall growth, well-being, and career journey.

Salary.com Estimation for Senior Diesel Mechanic in Westborough, MA
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