About Mariana Minerals

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.

The Role

Mariana Minerals is looking for an Engineering Coordinator to help drive the delivery of mineral processing and refinery projects.

As an Engineering Coordinator at Mariana Minerals, you will coordinate schedules, budgets, and documentation across engineering disciplines, keeping design projects on track from concept through construction support.

What You’ll Do

• Coordinate schedules, deliverables, and priorities across process, mechanical, electrical, civil, instrumentation, and structural engineering.

• Track project costs and budgets.

• Maintain project documentation in collaboration with document controllers, including drawing registers, transmittals, RFIs, and design basis documents.

• Coordinate document control processes, ensuring deliverables are reviewed, approved, and issued on schedule.

• Develop and maintain project schedules in Microsoft Project, tracking milestones and critical-path activities.

• Liaise with engineering contractors to track engineering activities.

• Prepare progress reports, meeting minutes, and status updates for internal teams and clients.

• Identify schedule risks and bottlenecks and help develop mitigation plans.

• Develop and implement processes and procedures to improve project coordination and efficiency.

• Actively engage in development of Mariana’s internal software tools.

What You’ll Bring

• Bachelor’s degree in an engineering discipline or equivalent experience.

• 5+ years of professional experience.

• Experience tracking costs within a project environment.

• Proficiency with Microsoft Office tools, especially Excel and Microsoft Project.

• Ability to manage multiple projects simultaneously in a deadline-driven environment.

• Ability to work effectively with cross-functional teams, manage competing priorities, and support delivery of high-quality engineering packages under schedule constraints.

Preferred Experience

• Experience with industrial projects.

• Experience developing processes and procedures.

• Familiarity with document control or project management platforms.

• Experience with procurement including POs, change orders, agreements.

• Experience developing software tools.

Our culture is built on four principles:

Everyone Gets Home Safe. We never put speed or cost ahead of people.

Extreme Ownership. We take full responsibility for outcomes, relentlessly driving toward solutions.

Engineer Out Requirements, then Automate. We simplify, optimize, and then automate for scale.

Share Your Legos. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

Join us as we build the future of responsible mineral sourcing and supply!