Staff Mining Engineer

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

Mariana Minerals is seeking a Staff Mining Engineer with 10+ years of mining experience and a strong background in hands-on, hard-rock open pit operations. This role connects mine planning with field execution, ensuring that designs and production schedules translate into safe, practical, and efficient mining activities.

You will lead short- and medium-term mine planning, support daily production execution, and improve mining performance. The ideal candidate understands how a mine actually operates: equipment capabilities, achievable productivities, operational delays, and the constraints that determine whether a plan can be delivered.

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• Bachelor's degree in Mining Engineering.

• 10+ years of experience in the mining industry, including substantial hands-on experience in hard-rock open pit mining operations.

• Expert proficiency in Deswik for mine design, mine planning, and production scheduling.

• Strong experience in short- and medium-term planning, operational mine design, production scheduling, and mine plan execution.

• Demonstrated experience in drill-and-blast optimization and ore and waste planning.

• Strong practical understanding of mining equipment, production rates, haulage, operational delays, and the interaction between planning, operations, and maintenance.

• Proven safety leadership and commitment to high mining industry standards and sound engineering practice.

• Strong analytical, problem-solving, and communication skills, with the ability to work effectively with field crews and multidisciplinary teams.

• Experience with heap-leach operations, leach-pad planning, stacking sequences, and coordination between mining and leaching.

• Experience with autonomous mining equipment, operational data systems, or automation of mine planning and production workflows.