Mariana Minerals ยท 5 months ago
Mine Manager, Surface Operations
Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying critical minerals for modern energy, AI, and defense technologies. They are seeking a Mine Manager to lead surface mining operations, ensuring safe and efficient production while driving continuous improvement across various functions. The role requires hands-on leadership and a proven track record in mine expansion and operational efficiencies.
Mining & Metals
Responsibilities
Develop and execute mine plans to achieve production targets while optimizing costs
Lead and document continuous improvement projects (e.g., mine sequencing, haul road design, maintenance strategy changes) with clear ROI and payback periods
Oversee drilling and blasting operations to maximize fragmentation and minimize costs
Manage haulage and loading operations to improve cycle times and reduce operating expenses
Provide specific examples of initiatives that resulted in hard-dollar savings (e.g., improved fleet utilization, reduced downtime, optimized blasting patterns, or fuel efficiency gains)
Implement preventive and predictive maintenance programs to extend equipment life and reduce repair costs
Demonstrate past successes in reducing maintenance costs (e.g., extended component life, reduced rebuild frequency, improved parts inventory management)
Possess detailed knowledge of equipment repairs and maintenance program implementation, including experience working with major OEM equipment vendors and support personnel
Optimize mobile fleet performance through operator training, telematics, and performance benchmarking
Champion a zero-harm culture through visible safety leadership and engagement
Lead safety initiatives that have demonstrably reduced incidents (e.g., behavioral-based safety programs, near-miss reporting improvements, fatigue management)
Ensure full compliance with MSHA, OSHA, and environmental regulations
Lead and develop large, multidisciplinary teams (30+ personnel) across drilling, blasting, hauling, maintenance, and support functions
Build high-performing teams through mentorship, skills development, and incentive structures that drive engagement and results
Foster a positive workforce culture, reducing turnover, improving cross-shift communication, and encouraging employee-led innovation
Lead by example supporting and participating in new technology implementation & testing
Drive brownfield and greenfield mine development, including permitting, infrastructure, and commissioning
Lead capital projects (e.g., crusher/conveyor installations, leach pad expansions, fleet upgrades) with a focus on cost control and execution efficiency
Qualification
Required
Minimum 10 years of progressive experience in surface mining operations, with at least 5 years in a leadership role managing large teams (30+ employees) at high-production sites
Demonstrated success in delivering operational improvements, cost savings, and safety enhancements
Strong knowledge of mine planning, equipment maintenance, and regulatory compliance
Experience with mine expansion, greenfield development, and capital project execution is highly desirable
Excellent communication, leadership, and team-building skills
Benefits
Competitive base salary and performance-based bonuses
Comprehensive health, dental, and vision insurance
Retirement savings plan with company match
Generous paid time off and holiday schedule
Relocation assistance (if applicable)
Professional development and training opportunities
Employee wellness programs
Modern, technology-enabled work environment
Company
Mariana Minerals
Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.
H1B Sponsorship
Mariana Minerals has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (7)
Funding
Current Stage
Early StageCompany data provided by crunchbase