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98 jobs matching your search
Showing 41 to 60 of 98
Engineering Coordinator
The Role Mariana Minerals is looking for an Engineering Coordinator to help drive the delivery of mineral processing and refinery projects. As an Engineering Coordinator at Mariana Minerals, you will coordinate schedules, budgets, and documentation across engineering discipline
Maintenance Technician
The Maintenance Technician, Mechanical supports safe, reliable operation of our process and utility equipment at Lithium One in Joaquin, TX. In this role, you will perform preventive and corrective maintenance on pumps, motors, valves, conveyors, blowers, compressors, and other r
Maintenance Technician, Electrical
The Maintenance Technician (Electrical) supports safe, reliable operation of the electrical, control, and instrumentation systems at Lithium One in Joaquin, TX. In this role, you will install, test, and maintain motors, switchgear, breakers, and motor control centers, then troubl
Sr. Recruiter
The role We are hiring a Sr. Recruiter to build the teams behind the teams at Mariana Minerals. You'll own full-cycle recruiting across corporate functions, helping us scale a software-first critical minerals company from the ground up. You'll partner directly with functional l
Laboratory Technician
The Role The Laboratory Technician runs high-temperature processing equipment in Mariana Minerals' Deep Sea Nodule Lab, where we turn polymetallic nodules from the Clarion-Clipperton Zone (CCZ) into battery-grade nickel, copper and cobalt. This hands-on role prepares feed, opera
Sr./Staff Mechanical Engineer
Role Overview Mariana Minerals is looking for a highly motivated Sr./Staff Mechanical Engineer to work on building the critical minerals supply chain to support the world’s energy transition. As a Mechanical Engineer at Mariana Minerals, you will lead the development and deploy
Engineering
Prep for this interviewStaff Mining Engineer
About the Role Mariana Minerals is seeking a Staff Mining Engineer with 10+ years of mining experience and a strong background in hands-on, hard-rock open pit operations. This role connects mine planning with field execution, ensuring that designs and production schedules transl
Engineering
Prep for this interviewCore Driller
The Core Driller operates diamond core drill rigs at our open-pit copper mine, drilling for mineral exploration and resource definition. The role focuses on safe, accurate drilling to plan, high-quality core recovery, equipment care, and following health, safety and environmental
Core Driller Assistant
The Core Driller Assistant works alongside the Core Driller to support diamond core 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 hea
Blast Hole Driller
The Blast Hole Driller operates production drill rigs at our open-pit copper mine, drilling blast patterns that keep mining operations on schedule. The role focuses on safe, accurate drilling to plan, equipment care, and following health, safety and environmental standards. Open-
Engineering Manager, MarianaOS
Role Overview Mariana Minerals is looking for an Engineering Manager to build and lead a team of software engineers working on the critical minerals supply chain that supports the world's energy transition. Our software team builds MarianaOS, the operating system for how Marian
Engineering
Prep for this interviewOperator
The Heavy Equipment Operator plays a critical operational role in supporting mine production through the safe and efficient operation of mobile heavy equipment, including loaders, dozers, excavators, graders, water trucks, and drill rigs. This position is responsible for conduct
Sr. Regional Permitting and Compliance Environmental Engineer
The role Mariana Minerals is hiring a Sr. Regional Permitting and Compliance Environmental Engineer to own permitting execution and compliance implementation across our U.S. mining, processing, and refining project sites. Reporting to the Global Environmental Permitting Lead, yo
Engineering
Prep for this interviewSr. Software Engineer, Autonomy
About the Role We are hiring Sr. and Staff Software Engineers (Autonomy) to build the onboard and platform software that carries our fixed and mobile equipment from raw sensor data to safe, reliable motion. In this role you will own the software the rest of the autonomy stack r
Engineering
Prep for this interviewSr. Software Engineer, Infrastructure
The role Mariana Minerals is looking for a Sr. or Staff Software Engineer, Infrastructure to join the team that owns and collaborates on the platform every other engineer here builds on. Our software team builds MarianaOS, the operating system for how Mariana engineers, constru
Engineering
Prep for this interviewProject Electrician
As an Electrician on our new Moab project team (formerly Lisbon Mines), you'll handle wiring, instrumentation, and PLC work on new equipment and systems. The ideal candidate thrives on variety and wants to be part of a growing company. The work varies week to week, from building
Sr/Staff Civil Engineer
As a Civil Engineer at Mariana Minerals, you will act as the owner’s engineer for civil and site development scope on greenfield mining and metallurgical processing facilities, defining requirements for engineering contractors and making sure their designs are integrated, constru
Engineering
Prep for this interviewMember of the Special Projects Staff
The Role Special Projects is a high-agency problem-solving team at Mariana, empowered by leadership to solve the company’s most critical and least defined problems. In any organization, there are high-leverage, ambiguous problems that either fall between organizational structure
Staff Mobile Equipment and Fleet Engineer
The Role Mariana Minerals is seeking a Mobile Equipment and Fleet Engineer to build and optimize the equipment fleet for our open pit mining operations. You will own the technical specifications, equipment and OEM selection, and full lifecycle economics of production and support
Engineering
Prep for this interviewLab Technician
As a Process & Lab Technician, you'll support safe, efficient and high-quality process development studies and analytical tests. You'll work closely with R&D and engineering to build, operate and maintain ore leaching columns, and you'll deliver timely, accurate and actionable ch
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