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DIESEL SERVICE TECHNICIAN — HEAVY EQUIPMENT & CRUSHING

Full-Time, Permanent | St. Clements, ON (Waterloo Region) | DZ Licence Required.

Kieswetter Excavating has been doing heavy civil work in the Waterloo Region and beyond for four generations. Earthwork, concrete, pipe installation, demolitions, aggregates — we run a serious fleet of iron, and we need the person who keeps it moving. A service diesel technician who goes where the work is and also maintains equipment in the shop.

About the Role:

Diagnose and repair diesel engines, hydraulic systems, electrical systems, powertrains, and air brake systems on heavy construction equipment, crushing equipment, and commercial transport vehicles.
Perform planned and unplanned field service calls — on site, on time, with minimal supervision.
Execute preventive maintenance schedules in shop
Operate advanced diagnostic software and electronic troubleshooting tools across multiple equipment lines.
Complete work orders, service records, and documentation accurately.
Identify parts requirements, manage your vehicle inventory, and flag issues.
Support equipment compliance with OHSA and Ministry of Labour inspection standards.
Collaborate with operators, project managers, and estimators.

Not needed - but nice to have experience in:

Setting up the spread so the plant runs the way it needs to run for what they're making.
Working through production problems with the client — not just what's broken, but what's getting in the way of the product they need.
Explaining what you're seeing in plain language, so the client can make decisions with good information.
Building the kind of working relationship that brings clients back to us.

Who We're Looking For:

Required:

421A (Heavy Duty Equipment Technician), or Red Seal certification — licensed or actively completing apprenticeship.
Valid DZ licence — Class D with Z air brake endorsement required.
Solid working knowledge of diesel engines, hydraulic systems, electrical/electronic systems, and air brake systems.
Experience with diagnostic software.
Comfortable reading schematics, wiring diagrams, and service manuals.
Ability to work independently in the field — you're organized, you communicate, you manage your time without someone looking over your shoulder.
Able to work directly with clients on their sites and represent us well while you're there.
Genuine safety mindset — you follow lockout/tagout, you do pre-use inspections, and you don't take shortcuts around moving equipment.

Bonus points (not required):

Experience with crushing and screening equipment.
Familiarity with earthmoving equipment — excavators, dozers, graders, compactors, articulated trucks.
Experience with pipe installation or demolition equipment.
Welding or fabrication skills.

Why Kieswetter:

We're not a national chain. We're a fourth-generation family company with deep roots in this region — and that means the decisions are made by people who know the work, not a distant VP reviewing spreadsheets. You'll be heard here.

Company service truck.
Competitive wages based on your actual certification level and experience — we don't low-ball people who show up ready to work.
Benefits package including health and dental.
Overtime availability — this is a busy operation.
A team that respects the trade — from the operators on the machine to the people in the office.
Work in and around the Waterloo Region — Kitchener, Cambridge, Wilmot Township, and surrounding communities.

[Heavy Duty Mechanic] [Diesel Mechanic] [Heavy Equipment Mechanic] [Mobile Mechanic] [310T] [421A] [Red Seal] [Field Service Technician] [Crushing & Screening] [Aggregates] [Hydraulics] [Diagnostics] [Air Brakes] [DZ Licence] [Earthwork] [Civil Construction] [Waterloo Region]

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