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Engineering jobs
35 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
1–20 of 35 jobs
Counts are paused for a minute after many searches; results are still current.
Mobile Maintenance Supervisor
10 days agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeManagerEngineeringLead, supervise, and develop a team of maintenance technicians while maintaining a safety-first mentality and a strong culture of accountability, teamwork, and continuous improvement.; Conduct safety meetings and workplace inspections, address hazards, and ensure work is…
Senior/Staff Chemical Process Engineer
12 days agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeLead / staff$140K – $175K a yearEngineeringMariana Minerals is looking for a highly motivated Sr./Staff Process Engineer to work on building the critical minerals supply chain to support the world’s energy transition and to supply metals necessary for technology and AI, energy, mobility, and defense.
Process Engineer
12 days agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelEngineeringAct as the engineering owner of the SX and EW circuits, including mixer-settlers, organic and electrolyte handling, tank house, cell house and associated utilities.; Monitor daily plant performance (PLS grade and flow, extraction and stripping efficiency, phase continuity,…
Staff Mechanical Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staff$140K – $190K a yearEngineeringMariana 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…
Staff Process Modeling Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staff$100K – $160K a yearEngineeringMariana Minerals is seeking a highly motivated Staff Process Modeling Engineer to support the development of next-generation refining processes for critical minerals — key to enabling the world’s energy transition.
Procurement Manager, Mobile Equipment
2 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeManager$130K – $190K a yearEngineeringMariana is hiring a Procurement Manager, Mobile Equipment to own the sourcing, contracting, and lifecycle management of mobile and heavy equipment across our operating sites and projects, including haul trucks, excavators, loaders, fleet vehicles, and forklifts.
Sr. Cost Control Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeSenior$140K – $180K a yearEngineeringWe are hiring a Cost Control Engineer to own the cost baseline, the forecast, and change control on Mariana's capital projects.
Mariana Minerals · Houston, Texas, United States
On-siteFull-timeEngineeringAs a Construction & Commissioning Quality Engineer, you will lead site quality across all of Mariana Minerals’ industrial process facilities, from construction and installation through testing, commissioning, handover, and project closeout. You’ll make sure quality requirements…
Project Engineer
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelEngineeringScope, design, and lead process improvement and capital projects from concept through commissioning; Develop process flow diagrams, P&IDs, mass and energy balances, and equipment specifications; Size and select pumps, tanks, piping, and other process equipment; Use plant data…
BIM Design Engineer
3 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-time$100K – $140K a yearEngineeringMariana 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 the minerals supply chain by combining deep industry expertise with advanced…
Mariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staffEngineeringWe 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 executes…
Senior Safety Engineer
3 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeSeniorEngineeringWe 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 support…
Engineering Coordinator
4 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeSenior$100K – $140K a yearEngineeringMariana Minerals is looking for an Engineering Coordinator to help drive the delivery of mineral processing and refinery projects.
Sr./Staff Mechanical Engineer
4 weeks agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeLead / staff$140K – $175K a yearEngineeringMariana 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.
Staff Mining Engineer
4 weeks agoMariana Minerals · Moab, Utah, United States +1
On-siteFull-timeLead / staff$123K – $171K a yearEngineeringMariana 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 translate into safe,…
Engineering Manager, MarianaOS
4 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeManager$180.00 – $225.00 an hourEngineeringMariana 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.
Mariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$100K – $150K a yearEngineeringMariana 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, you will…
Sr. Software Engineer, Autonomy
4 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$140K – $200K a yearEngineeringWe 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.
Sr. Software Engineer, Infrastructure
4 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$140K – $200K a yearEngineeringMariana 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.
Sr/Staff Civil Engineer
5 weeks agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeLead / staff$150K – $200K a yearEngineeringMariana 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 the minerals supply chain by combining deep industry expertise with advanced…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.