Job Description

Purpose:

The Mechanical Maintenance Supervisor will safely oversee daily maintenance operations using precision and preventative maintenance practices to maximize the reliability and up time of all plant equipment. In this role, the Mechanical Maintenance Supervisor is responsible for the safe execution of daily mechanical maintenance operations. The Supervisor will also be a champion of technician development and coaching, while adhering to plant maintenance practices to maximize efficiency and safety of plant maintenance personnel.

• Adhere and enforce all of UNACEM safety policies, and MSHA regulation.
• Conduct pre-shift safety meetings, field audits, and equipment inspections
• Lead incident investigations and implement corrective actions.
• Maintain a clean, safe, and hazard-free working environment.
• Supervise daily mechanical maintenance activities, assigning tasks and monitoring progress.
• Coordinate with Production, Electrical, and Planning departments to prioritize work orders.
• Troubleshoot mechanical failures on equipment such as kilns, conveyors, crushers, ball mills, gearboxes, pumps, and hydraulic systems.
• Review work orders for accuracy, time allocation, and material usage.
• Direct a team of mechanical maintenance technicians.
• Provide coaching, performance feedback, and support employee development.
• Maintain staffing schedules, manage callouts, and coordinate overtime needs
• Promote teamwork and accountability within the maintenance department.
• Support improvement initiatives to increase equipment uptime and reduce maintenance co
• Recommend upgrades, modifications, or replacement of equipment to enhance reliability.
• Verify the quality of all mechanical repairs and rebuilds.
• Assist in root cause analysis (RCA) of recurring equipment failures.
• Use the Computerized Maintenance Management System (CMMS) to track maintenance activities.
• Maintain inventory of critical spare parts and coordinate procurement needs.
• Close work orders once completed.
• Other duties as assigned. 

Knowledge, Skills, & Abilities:

• 5+ years of mechanical maintenance experience in heavy industrial, cement, mining, or similar environment.
• 2+ years of supervisory or lead experience preferred.
• Strong understanding of industrial mechanical systems, including: bearings, couplings, drives, hydraulics, pneumatics, Kiln/Mill equipment, conveyor systems.
• Knowledge of MSHA, and industrial standard.
• Strong communication skills, leadership, and problem-solving skills.
• Ability to work rotating schedules, nights, weekends, and holidays as needed.

UNACEM North America is part of the international Grupo UNACEM family. Our parent company, Grupo UNACEM, has a rich legacy that stretches back over 100 years, marked by technological innovation and a commitment to building a sustainable world. Headquartered in Lima, Peru, Grupo UNACEM was formed by merging leading cement companies and is now a reference point in the global construction materials industry. We have steadily grown our presence throughout Latin America, and today, our North American division is an integrated business leading the way for sustainable cement manufacturing in the US. In the United States, UNACEM North America operates two major cement plants—Drake Cement in Paulden, Arizona, and Tehachapi Cement in California. These facilities are recognized for their state-of-the-art technology and have established our company as a leader in the Southwest region. The Drake Cement facility was the first of its kind to be built in Arizona in 2008, and full production began in 2011. The Tehachapi cement plant has a rich history dating back to 1906. Our company culture is anchored in the UNA Values—nine guiding principles that are woven through every aspect of our business. At UNACEM, we: Collaborate as one team, fostering an environment built on trust and respect. Take responsibility for our actions, driven by a deep conviction to fulfill our purpose. Own our professional development, cultivating growth in a challenging environment. Live by the highest standards, as outlined in our Code of Ethics and Conduct. Prioritize health and safety, considering life to be our most important asset. Commit to creating economic, environmental, and social value for current and future generations. Strive to exceed expectations through continuous improvement and efficiency. Lead change by encouraging innovation and adaptability. Put the customer at the center of all our actions, working to provide sustainable solutions. As we look ahead, UNACEM North America is dedicated to ambitious sustainability goals. Grupo UNACEM’s global roadmap calls for all operations to achieve carbon neutrality by 2050. We are making large-scale investments to modernize our plants, improve energy efficiency, adopt alternative fuels, and implement carbon capture technology. These efforts align with our broader purpose—to grow together and build a sustainable world for everyone. Joining UNACEM North America means being part of a forward-thinking company—one where each team member plays a pivotal role in building a more sustainable future. If you share our values and passion for innovation, we look forward to learning more about your background and how you could contribute to our mission.

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