About Us: Solidus Resources is a U.S.-based gold development company backed by Waterton Mining. The company is focused on advancing the Spring Valley Gold Project in Pershing County, Nevada, and specializes in taking high potential gold assets through late-stage development and into production. Solidus applies a technically rigorous, capital-disciplined approach to mine development, with a strong emphasis on environmental stewardship, operational safety, and community engagement. The Spring Valley Gold Project is located in the prolific Humboldt Range, an area with approximately 60 million ounces of gold endowment within a 50-mile radius. Envisioned as a long-life, low-cost open-pit, heap-leach operation, Spring Valley has a robust resource base and considerable exploration upside along a 7-mile strike length across the Black Ridge fault zone. With a leadership team experienced in engineering, permitting, and large-scale project execution, Solidus Resources is advancing Spring Valley through feasibility, permitting, and construction, with a clear path toward operational readiness. The company’s goal is to responsibly unlock the value of U.S.-based gold assets while building a reputation for excellence in project delivery and sustainable development. This position is located on-site at our mine in Lovelock, NV. Job Description The Maintenance Controller oversees and coordinates all maintenance-related activities within autonomous haulage control room operations. Reporting to the Control Room Supervisor, the role ensures timely preventive maintenance, coordinates repairs and maintains accurate records to support the safe and reliable operation of the autonomous fleet and mine equipment, serving as the primary liaison between Command Control and the maintenance teams. Working from the control room, the Maintenance Controller manages maintenance scheduling and execution in coordination with operations to minimize downtime and risk, plans and approves safe AOZ access for maintenance work, and tracks equipment through to return to service. Key Responsibilities • Manage maintenance scheduling and execution in coordination with operations to minimize downtime and risk. • Track and monitor the status of all mine equipment (trucks, shovels and mobile units) to identify required maintenance and coordinate timely repairs. • Plan and approve safe AOZ access for maintenance work. • Monitor and update delay codes for mechanical or scheduled repairs. • Work with the maintenance team to monitor faults and coordinate the field response. • Track return-to-service criteria and confirm equipment readiness before an asset is released. • Oversee fatigue alerts and coordinate mitigation efforts. • Monitor slope stability, lightning detection and staging conditions, following the relevant TARPs. • Document downtime reasons and escalate frequent failure patterns. • Maintain accurate equipment logs and turnover sheets for a clean shift handover. Job Requirements • Set the workplace health and safety culture within control operations. • Comply with and adhere to all company policies, regulations and procedures. • Report autonomy-related incidents as soon as practicable. • Participate in safety enquiries, safety meetings, workplace inspections and site safety programs as required. • Ensure no person approaches or accesses an autonomous truck before mode transition and isolation are confirmed. • Serve as the primary liaison between Command Control and the maintenance teams for real-time updates, delay management and repair coordination. Qualifications Essential • High school diploma or equivalent; a diploma or degree in a related field is an asset. • 3 or more years in an open-pit mining or autonomous operations environment. • Strong understanding of equipment maintenance protocols in an industrial or mining environment. • Experience with fleet-management systems such as CAT MineStar, Modular or similar, and with maintenance-tracking systems. • Excellent organizational skills; detail-oriented, with a strong focus on maintaining accurate records. • Able to make complex decisions, prioritize and work under pressure. Preferred • Previous exposure to autonomous mining systems (highly desirable). • Advanced computer literacy and excellent verbal and written communication skills. • Sound knowledge of open-pit mining fundamentals and autonomous mining operations.