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Maintenance Manager - Mining & Materials Facilities

Company:
CalPortland
Location:
Mojave, CA, 93501
Posted:
October 12, 2026
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Description:

CalPortland is seeking a Maintenance Superintendent to lead maintenance operations at our mining and materials facilities. In this role, you will plan and oversee preventive and corrective maintenance for mining, crushing, and processing equipment, ensuring high reliability and minimal downtime. You will supervise maintenance teams, manage contractors, and drive safety, compliance, and continuous improvement initiatives. Collaborating closely with operations, you'll manage budgets, optimize asset performance, and support sustainable, innovative projects in a safety-focused, growth-oriented culture.

Responsibilities

Lead and supervise maintenance teams for mining and processing facilities

Plan, schedule, and prioritize preventive and corrective maintenance

Ensure safety, regulatory, MSHA, and OSHA compliance in all maintenance activities

Optimize equipment reliability and minimize downtime through proactive programs

Manage maintenance budgets, spare parts, and vendor relationships

Coordinate with operations to align maintenance work with production needs

Implement continuous improvement and root cause analysis for recurring issues

Oversee and evaluate contractors performing maintenance work

Maintain accurate records using CMMS and maintenance documentation

Support sustainability and innovation initiatives within maintenance operations

Required Skills

Maintenance planning and scheduling

Mechanical and electrical systems troubleshooting

CMMS software proficiency

Mining or heavy industrial equipment maintenance

Predictive and preventive maintenance programs

Budgeting and cost control

Safety and regulatory compliance (MSHA/OSHA)

Team leadership and supervision

Root cause analysis

Vendor and contractor management

Permanent

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