Project Engineer
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 how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply.
Role Overview
Mariana Minerals is looking for a highly motivated Project Engineer to work on building the critical minerals supply chain to support the world’s energy transition.
In this role, you will help manage the flow of information across engineering, procurement, construction, and operations teams. You will develop and maintain project workflows, support document control processes, track engineering and vendor deliverables, coordinate cross-discipline reviews, manage RFIs, and build dashboards that provide real-time project visibility.
What You’ll Do
Manage document and deliverable flows across internal engineering teams, external engineering partners, vendors, and construction stakeholders
Develop, maintain, and run review/approval workflows for engineering documents, vendor submittals, and project deliverables
Coordinate cross-discipline engineering reviews, ensuring timely engagement from process, mechanical, structural, piping, electrical, instrumentation, and construction teams
Track engineering deliverables and action items, maintaining up-to-date logs, trackers, and registers to ensure alignment with the project schedule
Manage Requests for Information (RFIs), ensuring timely routing, follow-up, closure, and documentation
Support the preparation of project dashboards, KPIs, and progress reports for internal leadership and external partners
Assist in developing and maintaining project documentation standards, naming conventions, and workflows to ensure consistency across the project
Support interface management, helping resolve gaps and issues between disciplines, vendors, and EPC partners
Participate in model reviews, design reviews, and coordination meetings, capturing action items and ensuring follow-through
Assist in building and improving digital project-execution tools, contributing feedback to help automate workflows and enhance project visibility
Support procurement and construction teams, including tracking vendor data, coordinating submittal reviews, and managing deliverable exchanges
What You’ll Bring
Bachelor’s degree in Engineering (Chemical, Mechanical, Civil, Industrial, or related discipline)
0–5 years of relevant experience in project engineering, project management, EPC/EPCM environments, or industrial project support roles
Familiarity with EPC project workflows, including document control, design reviews, RFI management, vendor coordination, and multidisciplinary engineering processes
Proficiency in project-engineering tools, such as document-management systems (Aconex, Procore, Asite, SharePoint, etc.), dashboards, spreadsheets, and workflow tools
Experience building dashboards or trackers (Excel, Power BI, Smartsheet, Notion, or similar)
Strong communication and coordination skills, with the ability to interface across disciplines and follow up effectively with teammates and external partners
Ability to work in a fast-paced, first-principles-oriented environment, managing competing priorities under schedule pressure
Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.