The Mosaic Company (NYSE: MOS) is the world’s leading integrated producer of concentrated phosphate and potash- two of the three most important nutrients in agriculture. We employ more than 13,000 people in six countries to serve farmers all over the world. Our Headquarters is in Lithia, Florida with operations throughout North America (U.S./Canada) and South America.

Supervisor Shaft Mechanical / Site Services

Where will you work: K3, Esterhazy, Saskatchewan, Canada

Shift schedule: 5/5/4

The Supervisor, Shaft Mechanical / Site Services supervises, and coordinates maintenance activities related to shaft mechanical equipment and site service infrastructure in a Surface and underground potash mining operation. Assists tradespeople in troubleshooting equipment and system issues through observations, technical expertise, and operational experience while ensuring safe, reliable, and efficient operations.

What will you do?

Lead and promote a strong safety culture while ensuring compliance with company policies, mining regulations, and industry best practices.

Supervise and coordinate maintenance activities for shaft mechanical systems, including hoists, shaft conveyors, pumping systems, piping, ventilation equipment, and underground infrastructure.

Oversee site service systems including water distribution, compressed air, heating, ventilation, and facility support equipment.

Develop and execute daily and weekly maintenance schedules aligned with production requirements and planned shutdowns.

Coordinate preventative maintenance programs and ensure all PM work orders are completed as scheduled.

Monitor equipment reliability and identify opportunities for continuous improvement and cost reduction.

Review maintenance work order feedback to ensure accuracy, completeness, and quality documentation.

Provide strong field leadership by overseeing safe execution of maintenance work and ensuring adherence to precision maintenance practices.





Support troubleshooting and root cause analysis of equipment failures and implement corrective actions.

Lead, mentor, and develop maintenance employees to build a high-performing team.

Coordinate with Operations, Engineering, Planning, and Reliability teams to optimize equipment performance and availability.

Manage contractor activities and ensure work is completed safely and efficiently.

Support outage planning and execution for major maintenance projects.

What do you need for this role?

- High School Diploma/GED required.
- Journeyperson Industrial Mechanic (Millwright), Heavy Duty Mechanic, Pipefitter, or related Mechanical Trade certification preferred.
- Supervisory or leadership experience in mining, industrial, or heavy manufacturing environments.
- 5+ years of maintenance experience in mining, processing, industrial, or heavy equipment operations.
- Experience maintaining shaft hoisting systems, conveyors, pumps, piping systems, or other heavy mechanical equipment is preferred.
- Knowledge of preventive and predictive maintenance practices.
- Experience with Computerized Maintenance Management Systems (CMMS).
- SAP maintenance experience preferred.
- Strong understanding of mine safety regulations and safe work practices.
- Excellent troubleshooting, planning, organizational, and communication skills.
- Proficiency with Microsoft Office applications.
- Ability to work effectively in both surface and underground mining environments.

Preferred Qualifications

- Potash mining or underground mining experience.
- Saskatchewan Underground Supervisor Certification or equivalent mining supervisory certification.




- Experience leading unionized maintenance workforces.
- Knowledge of reliability-centered maintenance (RCM) and continuous improvement methodologies.
- Experience with shaft sinking, shaft maintenance, hoisting equipment, or site utility systems.

Benefits Offered by Mosaic

- Medical, Dental, Vision insurance.
- Paid vacation, holidays, and sick time.
- Tuition Reimbursement.
- Financial Security Program.
- Optional HSA plan with company match.

Mosaic is an Equal Prospect Employer that values the strength diversity brings to the workplace and strives to achieve a representative workforce in Canada.

The Mosaic Company (NYSE: MOS), a Fortune 500 company headquartered in Tampa, Florida, is the world’s leading integrated producer and marketer of concentrated phosphate and potash crop nutrients. At Mosaic, we act with integrity and we perform our work ethically and transparently. We believe success comes when we make smart choices about how we engage our people, the way we manage our resources and our stewardship towards the environment. We are committed to maintaining a safe, healthy and respectful work environment for our 13,000 employees across the globe. We hold ourselves responsible for the safety and wellbeing of our colleagues and company. We are dedicated to ensuring Mosaic is a place where people are proud to work and grow. Serving customers in over 40 countries we are committed to strengthening our product portfolio by rethinking and reengineering outdated processes and focusing on digitalization. We collaborate across departments and geographies in order to streamline best practices. We foster innovation, encourage new ideas and strive to achieve excellence with humbleness that we can improve. And we demonstrate our commitment to good corporate citizenship by acting thoughtfully and responsibly in our operating communities - contributing our expertise, innovative spirit and financial resources.

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📌 Supervisor Shaft Mechanical / Site Services (Esterhazy)
🏢 The Mosaic
📍 Esterhazy