About the role
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. Our culture is built on three principles: 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. Position Summary We are hiring a Project Controls Manager to drive the systems, processes, and tools that ensure successful delivery of large-scale capital projects across mining and refining. This is a hands-on leadership role at the intersection of cost engineering, scheduling, risk management, and financial governance . You will partner closely with project executives, managers, engineers, and contractors to establish control frameworks, optimize project performance, and deliver predictable outcomes. This role is central to scaling Mariana’s capital project execution and embedding our software-first mindset into how projects are planned, monitored, and delivered.
What You'll do: Develop, refine, and implement project controls systems, processes, and tools (cost, schedule, change, risk, progress) across large-scale mining capital projects. Champion improvements in the Capital Project Operating System (Capital Project OS) . Review, analyze, and manage contractor schedules in Primavera P6; create schedule fragments and what-if scenarios; lead the integrated project master schedule. Establish and manage project budgets and forecasts, converting estimates from Class 5 → Class 1 into control budgets and cash flow models. Lead monthly job cost meetings and produce clear variance analyses. Review and validate contractor progress payment applications; coordinate approvals. Support capital funding draw requests and ensure alignment with corporate capex governance. Analyze change order requests; assess scope, schedule, cost, and risk implications; recommend negotiation/approval strategies. Conduct and maintain cost/schedule risk assessments; drive mitigation plans. Collaborate cross-functionally to resolve scheduling conflicts, resource constraints, and interface risks. Provide senior management and stakeholders with performance dashboards, deviation analyses, and corrective action recommendations. Track adherence to workforce/manpower plans and contractor staffing curves. Ensure compliance with MSHA, OSHA, environmental permits, and corporate procurement ethics. Required