Diesel Mechanic

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]