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We already have strong team of engineers, product managers and end users; what we don't have is someone whose full-time job is to sit with complexity and simplify it. We're hiring our first dedicated design hire to help bring MarianaOS to the next level. You'll work across teams
Role Overview Mariana Minerals is seeking an experienced and detail-oriented Sr. Estimator to lead cost estimation efforts for mining and mineral processing projects. This role is responsible for developing accurate, competitive, and timely cost estimates that support strategic
This position is based out of Moab, UT and the candidate should be local or willing to relocate. This role provides strategic and technical leadership to define, plan, and control the mining, hauling, and delivery of copper ore to the leach pad, safely, efficiently, and within b
The Role Mariana Minerals is seeking a highly motivated Staff Mechanical Engineer to support our next-generation minerals processing pilot plant in Houston. You will lead the design, integration, and deployment of pilot-scale mechanical systems and processing equipment used to d
Mariana is hiring a Procurement Manager to own procurement for our new projects and pre-operational sites. This is a senior, self-directed role requiring deep technical and commercial experience in industrial procurement. In this role, you will ensure sites have the supply agree
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
The Role Mariana Minerals is looking for a highly motivated Senior Mine Planner to lead strategic mine planning, opportunity evaluation, and long-range optimization across the company’s portfolio of mining projects. This role is responsible for defining how mines are evaluated,
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
Role Summary The Recycling Plant Operator is responsible for the safe, efficient, and high-quality processing of copper. This plant serves as the seed for all future recycling technology and operations globally. In this hands-on role, you will operate heavy material-processing eq
Role Overview We are hiring a Structural Steel Designer to configure and lead structural steel drafting and modeling for our capital projects, from conceptual engineering through detailed design. In this role, you will lead the configuration of projects in Tekla (or similar sof
Role Overview Mariana Minerals is looking for a highly motivated technician to join our San Francisco Pilot Plant team. You will support the design, deployment, and operation of first-of-its-kind refining processes for critical minerals, while also supporting development of soft
The Role Mariana Minerals is seeking a Process Safety Management (PSM) Engineer to help build, administer, and continuously improve the company's process safety and major hazard risk management program. This role will support labs, pilot operations, process development, scale-up
Role Overview We are hiring Machine Learning Engineers (Autonomy) to build the autonomy and sensor-integration software that lets our mining vehicles perceive, decide, and drive themselves. In this role you will own parts of the software and sensor integration that enables full
Role Overview We are hiring a Mechatronics Engineer (Hardware) to design and build the actuation, automation, and robotic hardware that makes our autonomous mining vehicles move. In this role you will own the electromechanical and robotics hardware that enables full mining auto
Role Overview We are hiring a Head of Engineering Programs to lead the planning, coordination, and execution of Mariana’s capital project programs from development through construction. In this role, you will own the overall program—driving schedules, budgets, and execution acr
The Role We’re hiring a Staff Product Manager to own a critical domain within MarianaOS. This is a single posting because we recruit for the strongest PMs first and then place them where the fit is best. Through the interview process, we’ll figure out together which part of the
The Role We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and comme
The Role We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and comme
The Role We're not a software company selling tools to mining operators. We are a mining company that builds software. Mariana designs, builds, commissions, and operates our own mines and refineries. We develop proprietary chemical processes and run them at lab, pilot, and comme
Role Overview As a Sr. Construction Project Manager, you will play a central role in managing new facility construction, capacity expansions, and major infrastructure projects. You'll oversee contractors and project teams, manage budgets and timelines, and lead both in-field and