Position Title : Mobile Heavy-Duty Mechanic Location : Perth Metropolitan Area, WA Employment Type : Casual Reports To : Service Manager About the Role : An established and fast-growing mobile service provider is seeking a skilled and motivated Heavy-Duty Mechanic to join its Perth-based team. Specialising in OEM field support, this role is ideal for a technician with strong experience in Liebherr machinery who thrives in a dynamic, customer-facing environment. You’ll provide responsive, high-quality mechanical support to OEMs, dealerships, and operators across the metro area. This is a mobile field-based role, offering flexible roster options (7/7, 10/4, or 5/2) to support your work-life balance. Key Responsibilities : Diagnose, service, and repair Liebherr heavy mobile equipment in the field. Deliver OEM-level support across a wide range of equipment types, including excavators, dozers, and loaders. Use OEM diagnostic software and technical schematics to troubleshoot and resolve faults. Provide reliable breakdown support and perform scheduled preventative maintenance. Maintain clear and professional communication with OEM partners, dealership teams, and site personnel. Accurately complete all service documentation, parts orders, and digital job cards. Maintain service vehicle condition, inventory, and tooling to a high standard. Apply and adhere to all site safety standards, SWMS, and internal company policies. What You’ll Bring: Cert III in Heavy Commercial Vehicle Mechanical Technology or Mobile Plant Technology. Proven experience with Liebherr machines is highly regarded and essential. Sound understanding of diesel engines, hydraulics, electrical systems, and drivetrains. Confident using diagnostic tools and interpreting OEM service information. Ability to work autonomously in the field while maintaining high attention to detail and safety. HR Driver’s Licence preferred (C Class minimum with willingness to upgrade). Construction White Card; additional plant or High-Risk licences desirable. Strong customer service skills and a proactive attitude. Roster Options : Choose from: 7 days on / 7 days off 10 days on / 4 days off 5 days on / 2 days off All rosters are Perth metro-based — home every night. What’s on Offer : Competitive hourly rate super on all hours. Work with OEM partners and dealership networks on industry-leading machinery. Career development in a supportive, safety-first environment. Stable, long-term role with a reputable mobile service provider. This role suits an experienced and driven mechanic who enjoys variety, independence, and working on cutting-edge equipment in a mobile capacity. If you’re ready to take the next step in your career with a growing and professional team, we’d love to hear from you.