Sr. Construction Project Manager

About this role

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.

SR. CONSTRUCTION PROJECT MANAGER

ROLE OVERVIEW

As a Sr. Construction Project Manager, you will play a central role in managing new facility construction, capacity expansions, and major infrastructure projects. You'll oversee contractors and project teams, manage budgets and timelines, and lead both in-field and office-based initiatives to deliver strategic capital projects. Your expertise will be vital to scaling operations safely, efficiently, and on budget.

WHAT YOU'LL DO

Project Ownership & Delivery:

- Take end-to-end ownership of assigned construction projects, ensuring stakeholder satisfaction and identifying cost efficiencies.

- Direct project delivery from scope development and contractor procurement to construction, commissioning, and project close-out.

- Lead project startup activities including forecasting, budgeting, and job cost tracking.

- Manage major purchase orders with thorough pricing and scope reviews.

- Ensure project compliance with Mariana Minerals standards and company policies.

Procurement & Commercial Management:

- Evaluate bids, manage procurement, and negotiate for optimal project outcomes.

- Review plans and technical diagrams to verify all required material and hardware are accounted for.

- Handle change orders and claims, seeking favorable commercial resolution.

- Prepare regular project reports on cost, schedule, risks, and overall quality.

Contractor & Stakeholder Management:

- Maintain open communication with cross-functional teams (QC, QA, commissioning, facilities, operations).

- Oversee contractor performance to ensure achievement of KPIs and deliverables.

- Liaise with regulatory, permitting, and community stakeholders as needed.

Systems & Automation:

- Collaborate with software engineering to advance project management tools and support ongoing automation.

- Mentor junior team members and foster a culture of growth and efficiency.

Health, Safety & Environment:

- Lead a "zero-harm" safety culture, conducting regular safety reviews and toolbox talks.

- Ensure alignment with all HSE plans and regulatory requirements.

- Monitor and manage environmental controls (dust, water, waste) during construction.

WHAT YOU'LL BRING

- Bachelor’s degree in Construction Management, Engineering, or related field; or equivalent experience.

- 8+ years in construction project management in industrial/mining/processing plants.

- Demonstrated success delivering capital projects of $20M+ on schedule and within budget.

- Skilled in Primavera P6, Microsoft Project, Office Suite, accounting, and estimating tools.

- Proficient at reading and interpreting contracts, engineering documentation, and specifications.

- Strong knowledge of construction practices, industry codes, procurement, electrical fundamentals, and accounting.

- Excellent communication, judgment, and decision-making abilities in dynamic environments.

- Willingness to travel up to 50% to project sites or offices.

- Experience with EPC/EPCM delivery models highly desirable.

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.

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