Heavy-Duty Marine Diesel & Transmission Technician

Atlantic Detroit Diesel Allison; Town of Islip (NY); On-site; USD 101,000 - 104,000; Full time

Job summary

Atlantic Detroit Diesel Allison in Islip, NY, is seeking a Transmission & Marine Technician to diagnose, maintain, and repair heavy‑duty equipment, marine propulsion systems, and powertrain components. Expect hands-on work with Allison transmissions and diesel engines in diverse environments.

Applicants should have strong electrical and mechanical troubleshooting skills, experience with OEM software, and a commitment to safety, quality, and customer service.

Qualifications

• Diagnose and repair heavy-duty equipment and marine propulsion according to manufacturer and company guidelines.
• Use OEM diagnostic software and laptops to identify and resolve issues.
• Maintain safety, quality, and customer service standards on all jobs.
• Coordinate with parts to identify and order needed components.
• Accurately complete work orders, labor docs, and time records.

Responsibilities

• Diagnose and troubleshoot mechanical, electrical, hydraulic, and electronic issues on heavy‑duty and marine equipment.
• Perform routine preventive maintenance according to manufacturer and company guidelines.
• Conduct complex repairs, overhauls, disassembly, and rebuilds of transmissions, diesel engines, propulsion systems, and related components.
• Diagnose and repair marine diesel engines and associated vessel systems on both commercial and recreational vessels, including dockside and onboard work.
• Repair and maintain marine propulsion systems, engine components, controls, electronics, and related subassemblies.
• Utilize OEM diagnostic software, laptops, and portable diagnostic tools to identify and resolve equipment issues.
• Coordinate with the parts department to identify and order parts necessary to complete repairs.
• Accurately complete work orders, labor documentation, and time records in a timely manner.
• Maintain a clean, organized, and safe work environment.
• Perform all work in accordance with company quality standards and safety procedures.
• Work independently and efficiently while providing excellent customer service.
• Occasional overtime, weekends, and holiday work may be required to meet customer needs.

Skills

Electrical diagnostics

Mechanical diagnostics

OEM software

Laptop diagnostics

Communication skills

Time management

Education

High School Diploma or GED

Diesel/marine repair experience

Allison transmissions experience

Cummins Insite diagnostics

Job description

Atlantic Detroit Diesel Allison in Islip, NY, is seeking a Transmission & Marine Technician to diagnose, maintain, and repair heavy‑duty equipment, marine propulsion systems, and powertrain components. Expect hands-on work with Allison transmissions and diesel engines in diverse environments.

Applicants should have strong electrical and mechanical troubleshooting skills, experience with OEM software, and a commitment to safety, quality, and customer service.