Supervisor Maintenance

SOUTH32 Limited; Patagonia (AZ); On-site; USD 75,000 - 110,000; Full time

Benefits offered by this job

Annual incentive bonus

401(k) match or retirement savings

4 weeks paid time off

12 weeks parental leave

Job summary

South32 Group Operations Pty. Ltd. is seeking a Maintenance Supervisor to lead frontline maintenance for the Hermosa Project near Patagonia, Arizona.

You will ensure safe execution of maintenance plans, manage a team of technicians, and drive reliability through planning, coordination and continuous improvement. Working with Operations, Planning and Maintenance teams, you will oversee daily, weekly and monthly activities, enforce safety standards and OEM requirements, and deliver sustainable

Qualifications

• High School Diploma or GED required.
• Five years of maintenance experience in an industrial/mining/ heavy equipment environment.
• Two or more years in a Supervisor or Lead role.
• Ability to pass a background check and drug screening.
• Proficiency with Microsoft Office applications.
• Working knowledge of SAP; experience preferred.
• Knowledge of MSHA regulations and safety requirements.
• Strong written and verbal communication skills.
• Ability to coordinate work across multiple stakeholders and priorities.

Responsibilities

• Promote and maintain a strong safety culture in all maintenance activities.
• Lead the safe and efficient execution of planned maintenance for fixed plant and mobile equipment.
• Integrate weekly and monthly maintenance plans into daily shift plans.
• Collaborate with Maintenance Planners to optimize schedules and minimize impacts.
• Provide feedback and documentation to support planning improvements.
• Monitor work in progress and implement corrective actions as needed.
• Provide day-to-day leadership, coaching and development for maintenance personnel.
• Set clear performance expectations and uphold safety, quality, productivity and equipment care.
• Conduct performance evaluations and support training initiatives.
• Address performance concerns and HR-related matters with site leadership.
• Foster a collaborative, high-performing work environment.

Skills

Safety leadership

Team leadership

Communication

Problem solving

Maintenance planning

Equipment troubleshooting

Supervisory experience

MS Office

Education

High School Diploma or GED

Tools

SAP

Microsoft Office

Job description

Select how often (in days) to receive an alert: Create Alert

Company: South32 Group Operations Pty. Ltd.

Discover a Brighter Future

At South32, we are meeting the challenge of enabling a sustainable future through our focus on responsibly producing commodities critical for a low-carbon world.

As a collaborative, caring and inclusive company, there is no better place to make a genuine difference. Together we are making a positive, global impact that has the potential to change lives.

Whatever career path you choose, we will support you every step of the way to learn, grow and succeed. So, join us, step towards a brighter future and leave your legacy.

ABOUT Hermosa

Hermosa, located approximately 75 miles south-east of Tucson, Arizona, is the only advanced mining project in the United States as of 2023 that could produce two federally designated critical minerals—manganese and zinc as well as silver and lead. The project has the potential to help power the nation’s clean energy future, strengthen the domestic supply chain of critical minerals, grow the local economy, and improve lives in Santa Cruz County and the surrounding community for generations to come.

WHAT SOUTH32 OFFERS

• Annual short-term incentive bonus that recognizes both your individual performance and the overall success of the business.
• When you choose to contribute more into your retirement savings, South32 will match it up to a certain percentage.
• South32 provides you with 4 weeks paid time off.
• 12 weeks full-paid parental leave for primary carers and 2 weeks full-paid parental leave for secondary carers

ABOUT THE ROLE

As a Maintenance Supervisor, you will provide frontline leadership for maintenance activities supporting the Hermosa Project's fixed plant and mobile equipment fleet. You will be responsible for safely executing maintenance plans, leading and developing maintenance personnel, and ensuring equipment reliability through effective planning, coordination and continuous improvement.

Working closely with Operations, Planning and Maintenance teams, you will oversee the execution of daily, weekly and monthly maintenance activities while ensuring compliance with safety standards, OEM requirements and company procedures. This role is site-based position located at the Hermosa Project near Patagonia, Arizona

Key Responsibilities

Safety Leadership

• Promote and maintain a strong safety culture by ensuring all maintenance activities are completed safely and in compliance with company policies and regulatory requirements.
• Lead by example through visible safety leadership and active participation in safety meetings, inspections and risk assessments.
• Coordinate and conduct workplace inspections, safety meetings and corrective actions as required.
• Ensure team members have the training, tools and resources necessary to perform work safely and effectively.

Maintenance Execution & Planning

• Lead the safe and efficient execution of planned maintenance activities for fixed plant and mobile equipment.
• Integrate weekly and monthly maintenance plans into effective daily shift plans.
• Communicate daily work priorities and ensure maintenance activities are completed as scheduled.
• Collaborate closely with Maintenance Planners to optimize schedules and minimize impacts to future maintenance plans.
• Provide detailed feedback and documentation to support ongoing planning and scheduling improvements.
• Monitor work in progress, identify potential issues and implement corrective actions when necessary.
• Provide day‑to‑day leadership, coaching and support to maintenance personnel.
• Set clear performance expectations and hold team members accountable for safety, quality, productivity and equipment care.
• Conduct employee performance evaluations and support employee development and training initiatives.
• Address performance concerns, documentation requirements and employee relations matters in partnership with Human Resources and site leadership.
• Foster a collaborative, respectful and high‑performing work environment.

Communication & Coordination

• Maintain effective communication with Operations, Planning, Engineering and Maintenance teams to ensure alignment of priorities.
• Collect, document and communicate accurate maintenance information in a timely manner.
• Participate in planning and coordination meetings within assigned areas of responsibility.
• Utilize SAP and Microsoft Office applications to manage work execution, reporting and documentation.
• Identify opportunities to improve maintenance efficiency, equipment reliability and work execution processes.
• Support implementation of maintenance best practices and adherence to OEM recommendations.
• Assist in resolving operational and maintenance issues through effective troubleshooting and problem‑solving.
• Perform other duties as assigned.

ABOUT YOU

You are a hands‑on maintenance leader who thrives in a fast‑paced industrial environment. You have a strong commitment to safety, enjoy developing teams and can effectively coordinate maintenance activities to support safe and reliable operations.

Required Qualifications

• High School Diploma or GED.
• Minimum of five (5) years of maintenance experience in an industrial, mining, processing or heavy equipment environment.
• 2 or more years of experience as a Supervisor or Lead role
• Ability to pass a background check and drug screening.
• Proficiency with Microsoft Office applications.
• Working knowledge of maintenance management systems; SAP experience preferred.
• Knowledge of supervisory practices and team leadership principles.
• Strong problem‑solving skills with the ability to resolve day‑to‑day issues involving equipment materials methods and work processes.
• Working knowledge of applicable MSHA regulations and safety requirements.
• Strong written and verbal communication skills.
• Ability to effectively coordinate work across multiple stakeholders and priorities.

South32 is committed to building and maintaining an inclusive and diverse workforce that reflects the communities in which we operate. We provide a recruitment process that is fair, equitable and accessible for all and we encourage candidates from all backgrounds to apply.