Staff Mobile Equipment and Fleet Engineer

Mariana Minerals is seeking a Mobile Equipment and Fleet Engineer to build and optimize the equipment fleet for its open pit mining operations. The role owns technical specifications, equipment and OEM selection, and full lifecycle economics of production and support equipment, with a central focus on autonomy. The scope includes haul trucks, wheel loaders, excavators, dozers, graders, water trucks, blast-hole drills, blasting support equipment, RC and core drilling rigs, trailers, and other mobile equipment. The role works across operations, maintenance, mine engineering, procurement, OEMs, autonomy providers, and the software team.

Responsibilities

Design the fleet by translating mine plans, production targets, haul profiles, ground conditions, road geometry, operating hours, and site constraints into fleet requirements; Specify and select equipment by developing technical specifications and comparing machine classes, models, powertrains, configurations, and OEMs; Drive the autonomy roadmap by identifying where autonomous equipment creates practical value and comparing purpose-built autonomous machines with retrofit options; Engineer autonomous integration with OEMs, autonomy vendors, site teams, and software developers, including machine controls, sensors, communications, fleet coordination, remote supervision, and dispatch and maintenance interfaces; Define acceptance tests and support safe commissioning; Make autonomy work in the field by planning interactions among autonomous and manually operated equipment and people, and evaluating effects on haul roads, loading areas, traffic rules, servicing, recovery procedures, productivity, and staffing; Own lifecycle economics by building and maintaining models for acquisition, fuel and energy, tires, maintenance, major components, rebuilds, autonomy conversion, replacement, and residual value; Improve equipment life and performance by partnering with operations and maintenance to address downtime, underutilization, payload losses, inefficient operation, and premature wear; Build with data and software by defining telemetry needs, connecting equipment and maintenance information, and working with the MarianaOS team on fleet selection, equipment health, utilization, and autonomous performance tools; Guide OEM and vendor choices by assessing technical capability, autonomy offerings, integration flexibility, service coverage, parts availability, and long-term support

Requirements

Relevant experience in mobile equipment engineering, fleet management, equipment maintenance, OEM applications, or technology integration in open pit mining or a similar heavy-equipment environment; Practical understanding of machine performance and the mechanical, hydraulic, electrical, and control systems that determine reliability, maintainability, and operating life; Experience with autonomous or remotely operated equipment, machine controls, or equipment retrofits, with sound judgment about deployment in an active operation; Ability to develop fleet and lifecycle cost analyses, investigate equipment data, test assumptions, and make clear recommendations that balance cost, performance, safety, and flexibility; Strong communication skills and enthusiasm for working with operators, maintainers, engineers, and software developers in a dynamic, multidisciplinary setting; Curiosity and initiative, a genuine passion for equipment and engines, an interest in new technology, and the creativity to turn promising ideas into field improvements