Drill and Blast Engineer

About the Company

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.

Responsibilities

• Develop and refine blast patterns and charge designs tailored to specific geotechnical domains
• Utilize ANFO, emulsions, bulk delivery systems, and timing systems to achieve optimal fragmentation and vibration control
• Apply advanced blast modeling tools for fragmentation, timing, and vibration analysis
• Lead KPI reconciliation including powder factor, cost/ton, fragmentation outcomes, dilution, and elevation control
• Plan and coordinate drilling patterns and schedules aligned with mine plans
• Oversee drill contractors to ensure compliance with safety standards, hole specifications, and QA/QC
• Maintain focus on pit wall stability through geotechnical collaboration
• Champion a safety-first culture and ensure operations exceed MSHA, ATF, and state regulatory requirements
• Maintain accurate explosives inventory, blast logs, and compliance documentation
• Analyze explosive consumption and operational parameters to optimize total blasting cost
• Identify and implement new technologies to enhance efficiency

Requirements

• Bachelor’s degree in Mining Engineering or a related field
• 5+ years of experience in surface mine drill & blast engineering
• Proficiency in blast design software such as ShotPlus or JKSblast
• Strong understanding of MSHA and ATF regulations
• Experience with bulk ANFO and emulsion delivery systems
• Excellent communication skills and ability to work cross-functionally