Project Scheduler

Mariana Minerals•Houston, TX

12d

About The Position

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 The Project Scheduler is responsible for developing, maintaining, and analyzing integrated project schedules for engineering, procurement, construction, and commissioning activities. The Scheduler supports project planning, progress measurement, forecasting, and schedule risk analysis to ensure projects are delivered safely, on time, and within budget.

Requirements

5+ years of project scheduling experience in industrial, mining, energy, oil & gas, or infrastructure projects.
Proficiency with Primavera P6
Knowledge of CPM scheduling techniques and project controls principles.
Familiarity with AACE, PMI, and EPC project execution methodologies.
Strong analytical, communication, and organizational skills.
Attention to detail and accuracy
Strategic thinking and problem-solving
Ability to manage multiple priorities and deadlines
Strong collaboration and leadership skills

Responsibilities

Develop and maintain detailed project schedules using Primavera P6 or equivalent scheduling software.
Prepare baseline schedules aligned with project scope, execution strategy, and milestones.
Monitor project progress and update schedules based on field data and contractor inputs.
Perform critical path analysis and identify schedule risks, delays, and recovery opportunities.
Support planning workshops, look-ahead schedules, and turnaround/shutdown planning activities.
Coordinate with engineering, procurement, construction, commissioning, and operations teams.
Prepare schedule performance reports, KPIs, and executive-level presentations.
Analyze schedule variances and provide mitigation and recovery recommendations.
Ensure schedules comply with company procedures and AACE recommended practices.
Support earned value management (EVM) and integrated cost/schedule reporting when applicable.
Participate in risk assessments and scenario analysis to support project decision-making.