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Mariana Minerals is a software-first, vertically integrated minerals company supplying critical minerals for modern energy, AI, and defense technologies. The company is reimagining the minerals supply chain through deep industry expertise combined with advanced software, automation, and data-driven decision-making.
You will own schedule management for a major capital project, managing everything from Level 1 summary schedules used by leadership to Level 4 detailed schedules used in the field. Working with internal teams, you will build schedules that reflect actual execution plans, establish and defend the critical path, hold EPC contractors to clear scheduling standards, and transform progress data into actionable forecasts.
Key responsibilities include:
- Building and maintaining integrated critical path schedules in Primavera P6 across engineering, procurement, fabrication, construction, commissioning, and start-up phases
- Defining work breakdown structure, activity codes, calendars, and resource/cost loading aligned to cost breakdown structure
- Running critical path, float, and near-critical analysis each cycle and recommending recovery options
- Establishing and maintaining baseline schedules with documented change control processes
- Reviewing contractor-submitted schedules for logic quality, constraints, and float manipulation using DCMA-style health checks
- Defining progress measurement rules with cost control and producing S-curves, earned-value inputs, and work-hour histograms
- Driving ninety-day, six-week, and weekly look-ahead processes with construction and commissioning teams
- Supporting quantitative schedule risk analysis and translating P50/P80 results into contingency and milestone decisions
- Writing monthly schedule narratives and presenting to project and executive teams
- Automating statusing, health checks, and report production through rules-based pipelines
You will work closely with engineering, procurement, construction, commissioning, and cost control teams. The role emphasizes clear communication (explaining critical paths to CFOs and look-aheads to foremen), independent judgment, constructive challenge of optimistic dates, collaboration, and continuous process improvement.
REQUIREMENTS:
- 5–12 years of hands-on planning and scheduling on capital projects in mining, mineral processing, refining, chemicals, power, or heavy industrial, with integrated EPC schedule experience through construction and commissioning
- Expert-level Primavera P6 proficiency: building, analyzing, and defending schedules
- Strong critical path fundamentals: logic, constraints, calendars, total and free float
- Data fluency with P6 data outside the interface (XER/XML exports, SQL, Power BI, or Python); interest in automating repeatable work
- Experience setting rules of credit and reconciling reported progress against physical work
- Working knowledge of DCMA 14-point assessment or comparable schedule health standard
- Real field experience and ability to communicate with construction superintendents
- BS in engineering, construction management, or related field (equivalent field planning experience considered)
- PMI Scheduling Professional (PMI-SP) or AACE Planning and Scheduling Professional (PSP) certification preferred
- Experience with schedule risk tools (Acumen Fuse, Safran Risk, Primavera Risk Analysis, @Risk) preferred
- Commissioning and start-up planning experience preferred
- Forensic delay analysis and time impact analysis experience preferred
- End-to-end integrated EPC schedule ownership preferred
- Owner-side experience managing multiple EPC/EPCM contractors preferred
- Track record of building scripts, apps, or dashboards to automate schedule work preferred
