• Perform scheduled preventive maintenance (PM) on mixer trucks, including oil changes, filter replacements, brake inspections, and lubrication per manufacturer and company schedules.

• Diagnose and repair mechanical, hydraulic, electrical, and pneumatic systems on front-discharge and rear-discharge mixer trucks (e.g., Kenworth, Peterbilt, Mack, International).

• Inspect and maintain mixer drum drive systems including PTO units, hydraulic pumps, charge/discharge motors, and drum roller assemblies.

• Service and repair truck chassis components including engines, transmissions (manual and automatic), differentials, suspension, steering, and braking systems.

• Troubleshoot and repair electrical systems including starting/charging systems, lighting, ABS/EBS, and electronic engine controls using diagnostic scan tools.

• Perform welding and fabrication repairs as needed on mixer drums, chutes, hoppers, fenders, and other structural components (MIG, stick).

• Maintain water systems, washout systems, additive dispensing systems, and ancillary truck-mounted equipment.

• Conduct DOT pre-trip/post-trip inspections and ensure all vehicles meet FMCSA safety standards and pass annual DOT inspections.

• Maintain accurate service records, work orders, and parts usage logs in the fleet management system.

• Respond to roadside breakdowns and perform field repairs to minimize delivery delays.

• Maintain a clean and organized shop environment and ensure proper handling and disposal of hazardous materials (oils, coolants, solvents).

• Communicate effectively with dispatch, drivers, and management regarding vehicle status, repair timelines, and parts needs.

• High school diploma or GED equivalent.

• Minimum 3 years of experience as a diesel/heavy truck mechanic, preferably in ready-mix concrete, construction, or heavy equipment industries.

• Proficient in diesel engine diagnostics and repair (Cummins, PACCAR, Detroit, Navistar).

• Working knowledge of hydraulic systems, air brake systems, and electrical/electronic troubleshooting.

• Ability to read and interpret service manuals, wiring diagrams, and hydraulic schematics.

• Must possess own basic hand tools; specialty and shop tools provided by company.

• Valid driver’s license required; CDL Class B (or willingness to obtain within 90 days) preferred.

• Must be able to pass pre-employment drug screen and background check.

Preferred Qualifications

• ASE Medium/Heavy Truck certifications (T2, T4, T5, T6, T7, T8).

• Experience with front-discharge mixer trucks (e.g., Oshkosh, London Machinery, Continental).

• Welding certifications (AWS) or demonstrated welding proficiency.

• Experience with Command Alkon or similar fleet/dispatch management systems.

• HVAC (Section 608/609) refrigerant certification.

• Familiarity with OSHA workplace safety regulations and DOT/FMCSA compliance requirements.

Physical Requirements

• Ability to lift and carry up to 75 lbs regularly and up to 100 lbs occasionally.

• Ability to stand, walk, bend, kneel, crawl, and climb for extended periods.

• Work performed outdoors and in shop environments; exposure to extreme heat (Arizona summers), noise, dust, fumes, and vibration.

• Must be able to work in confined spaces and at heights when required.

• Manual dexterity and hand-eye coordination for precision mechanical work.

Work Schedule & Conditions

• Standard schedule: Monday–Friday, start times typically 4:00 AM–5:00 AM to support early batch operations.

• Overtime and occasional weekend work required based on fleet needs and seasonal demand.

• On-call availability for emergency roadside repairs during operating hours.

• Shop and field work in the Phoenix, AZ metro area.