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98 jobs matching your search
Showing 21 to 40 of 98
Site Superintendent
The Role As Site Superintendent, you will be responsible for the entire build of industrial process infrastructure, from site development and ground-up civil work through installation and startup. You’ll schedule and direct trade contractors, run daily coordination meetings, res
Analytical Systems Specialist / Applications Chemist
This is a full-time, salaried role reporting to our analytical lead. Responsibilities - Travel to Mariana Minerals lab sites to troubleshoot and resolve issues with analytical techniques, instruments, data quality and method performance - Help bring new lab systems online an
Fabrication Technician
The Role Mariana Minerals is looking for a highly motivated Fabrication Technician to join our San Francisco Pilot Plant team. You will support the design, installation, and maintenance of first-of-its-kind refining processes for critical minerals. As part of a growing maintenan
Analytical Lab Chemist
Responsibilities - Perform precise sample preparation across various matrices, including weighing, digestion, dilution, and filtration - - Operate, calibrate, and troubleshoot analytical equipment, including ICP-OES, ICP-MS, and XRF - Record data accurately in LIMS or lab
Process Plant Technician
The Role The Process Plant Technician is a position in the operation of SX/EW plant and tank house. Where in, the Process Plant Technician obtains and demonstrates knowledge of the process plant operation parameters and operating procedures. The Process Plant Technician supports
Project Maintenance Technician
We are hiring a Maintenance Mechanic for our new project team at our Moab site, formerly Lisbon Mines, to assemble and install equipment for new projects. The ideal candidate is motivated by change and wants to be part of a growing company. The work varies week to week, from set
Project Engineer
The Project Engineer designs and deploys first-of-a-kind mining and refining technologies at our Moab site. In this role, you will work across Mariana's process development, software, plant engineering, project execution, and operations teams to plan, build, and deliver the cross
Engineering
Prep for this interviewBIM Design Engineer
- Develop, update, and maintain 2D and 3D drawings and models using AutoCAD Plant 3D, Civil 3D, and Revit - - - - - Ensure high accuracy and quality of drawings and models, with strict adherence to project and company standards - Support BIM and digital delivery workflow
Engineering
Prep for this interviewIP Counsel
About the Role We are looking for an experienced and motivated Intellectual Property Counsel to join our growing legal team. This is a hands-on, generalist IP role for an attorney who wants to own the full range of intellectual property issues at a company building first-of-a-ki
Finance & Legal
Prep for this interviewCommercial Counsel
About the Role We are looking for an experienced and motivated Commercial Counsel to join our growing legal team, with a focus on M&A and commercial transactions. This is a hands-on, deal-focused role for a transactional attorney who thrives in an operational environment. You wi
Finance & Legal
Prep for this interviewProduction Planner
Every Mariana Minerals site runs on a production plan, and this role brings them together. As our first Production Planner, you'll partner with each site to develop its plan, then roll those plans up into one clear view across the company. You'll build our planning tools in Mari
Sr./Staff Process Engineer - Detailed Engineering and Plant Design
The Role We are hiring a Senior / Staff Process Engineer to execute detailed engineering deliverables such as P&IDs, line and instrument and valve lists, control narratives, hydraulic models, equipment and bulk specifications, and the procurement packages behind them. Mariana ex
Engineering
Prep for this interviewSr. Technical Recruiter
We are hiring a Sr. Technical Recruiter to help build world-class engineering and technical teams that will shape the future of industrial automation, AI, and critical minerals. In this role, you'll partner closely with recruiters, hiring managers, and technical leaders to ident
Logistics Analyst
The Role Mariana is hiring a Logistics Analyst to own the operational logistics intelligence that keeps our procurement, engineering, and site teams making well-informed decisions about how we move materials and equipment. This is not a coordination or execution role — it sits
Operations
Prep for this interviewPlant Design Manager
Role Overview Mariana Minerals is looking for an experienced Plant Design Manager to lead our design and Building Information Management (BIM) teams. In this role, you will lead our designers – 3D modelers, 2D drafters, and BIM Managers – while developing and implementing Maria
Design
Prep for this interviewPilot Plant Operations Manager
The Role Mariana Minerals is looking for an experienced Pilot Plant Operations Manager to lead operations at our DSM Pilot Plant in Houston. The DSM pilot is a first-of-its-kind, fully integrated flowsheet that couples a high temperature pyrometallurgical section with a downstre
Operations
Prep for this interviewLogistics Manager
The Role Mariana is hiring a Logistics Manager to build and lead our logistics function as we scale operations across multiple sites and projects. This is both a leadership and a hands-on role. You will set the strategy, manage the team, own our relationships with 3PL partners a
Operations
Prep for this interviewSenior Safety Engineer
The role We are hiring a Senior Safety Engineer to lead ISO 45001 implementation and help our teams solve safety challenges in equipment and facility design. You will establish the system at an initial site, build company policies and procedures that other locations can use, and
Sr. Piping Designer
Role Overview We are hiring Piping Design Engineers to rebuild how piping design is done. Piping is one of the largest cost and schedule drivers in a refinery, and one of the least automated disciplines in engineering. The workflow has barely changed in thirty years: someone ro
Driller Assistant (Helper)
The Driller Assistant works alongside the Driller to support drilling for mineral exploration and resource definition at our open-pit copper mine. The role focuses on safe rig operations, careful core handling and recovery, equipment care, and following health, safety and environ
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