Diesel Mechanic

Company: Interstate Waste Services
Location: Sussex
Posted on: January 28, 2026

Job Description:

Overview: Interstate Waste Services is the most progressive and innovative provider of solid waste and recycling services in the greater New York, New Jersey and Connecticut markets with a rail-served landfill in Ohio. IWS is committed to delivering high-quality waste, recycling and environmental services, while prioritizing the safety of our employees, customers and communities. We cater to a diverse range of industrial, medical and commercial/residential customers. Founded in 1998, IWS has grown over the years through acquisitions, many of which were family-owned businesses that remain a part of our team today. We’re proud to combine the resources of a large company with the values and care of a family-run business. Essential Job Summary:: The Level A Fleet Mechanic/Technician is the top-tier technical expert in the shop, responsible for advanced diagnostics, complex repairs, and technical leadership across refuse trucks, heavy trucks/tractors, and support assets. This role sets the standard for safety, quality, productivity, and training, and partners with maintenance leadership to drive up time and regulatory compliance across the fleet. Essential Job Functions: To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Other minor duties may be assigned.: To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Other duties may be assigned. Advanced Diagnostics & Complex Repairs Lead diagnosis and resolution of complex, intermittent, or chronic issues involving: Engine performance and emissions/aftertreatment (DPF, DOC, SCR, sensors, dosing systems). CAN-bus and multiplex electrical systems, electronic control modules, and communication networks. Advanced hydraulics for refuse bodies, auto-load arms, high-pressure systems, and heavy truck power take-offs. Plan and execute major component work including major engine reparis, transmission and differential R&R, frame-off repairs, and complex hydraulic rebuilds. Technical Leadership & Training Serve as the go-to technical resource for Level B and Level C technicians; provide on-the-job training, coaching, and quality checks. Assist in training on: Diagnostic software and tools. New equipment technology, safety systems, and telematics. Company maintenance standards, PM strategies, and repair procedures. Fleet Reliability, Compliance & Continuous Improvement Analyze repeat repairs, failure trends, and PM findings; recommend changes to PM intervals, inspection checklists, or parts specifications. Ensure all work complies with DOT, FMCSA, OSHA, BIC, DEP and environmental regulations, as well as state/local requirements in NY, NYC, NJ, and CT. Perform and sign off on the most critical inspections (e.g., PDI, PM and Annual inspections, accident damage assessments, major repair QC). Operational & Customer Support Support complex road calls and on-site repairs on the road, at transfer stations, MRFs, or customer locations throughout the NYC tri-state area. Partner with Operations and Dispatch to minimize downtime, sequence repairs effectively, and prioritize critical units i.e. NYC dense-route refuse units, specialized collection assets. Provide clear feedback to leadership on equipment condition, replacement candidates, and chronic issues affecting uptime or safety. Administrative & Leadership Duties (as assigned) Help plan daily shop workload and allocate jobs according to technician skill level. Assist in specifying parts, evaluating vendor options, and supporting warranty recovery efforts. Support audits, safety inspections, and external regulatory reviews as the technical representative for the shop. Requirements and Qualifications:: High school diploma or GED required; additional technical training strongly preferred. A minimum of 5 years of proven hands-on experience as a diesel mechanic as a diesel/heavy-equipment mechanic/technician, including advanced diagnostics and major component overhaul. CDL Class B or A with air brake endorsement required or strongly preferred due to frequent road tests and movement of collection vehicles on public roads. Demonstrated expert-level knowledge of: Heavy truck and refuse systems. Refuse hydraulic, electrical, and powertrain systems. Diagnostic software, scan tools, and OEM service information. Proven track record of performing complex diagnostics and repairs independently. Must provide own professional-grade tools required for diagnostic and repair work. ASE Master Medium/Heavy Truck Technician or equivalent combination of ASE certifications (T series) and/or OEM advanced certifications preferred. Possession of a valid driver’s license is required. Experience in a lead or senior technician role in a refuse, municipal, or large private fleet environment preferred. Experience with CNG/LNG, hybrid, or EV drivetrains for heavy vehicles preferred. Strong communication skills and the ability to coach, influence, and drive standards across multiple shifts or locations preferred. Additional Information: This job description is intended to be an accurate representation of the general functions of the job, rather than exhaustive list of duties, responsibilities, or experience. Other duties may be assigned, requested, or required. Aspects of the job may be altered without notice. Interstate Waste Services provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Salary Range Minimum: USD $30.00/Hr. Salary Range Maximum: USD $40.00/Hr.

Keywords: Interstate Waste Services, Yonkers , Diesel Mechanic, Engineering , Sussex, New York