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Engineering jobs
35 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
21–35 of 35 jobs
Counts are paused for a minute after many searches; results are still current.
Staff Mobile Equipment and Fleet Engineer
5 weeks agoMariana Minerals · Houston, Texas, United States +2
On-siteFull-timeLead / staff$138K – $170K a yearEngineeringMariana 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…
Mariana Minerals · San Francisco, California, United States
On-siteFull-timeLead / staff$180K – $210K a yearEngineeringWe're hiring a Staff Product Manager to own the Engineering and Super domains of CapitalProjectOS (CPOS), the operating system for how Mariana designs, plans, and builds capital projects. CPOS is organized around four components ( MarianaEngineer (design), MarianaGSM…
Sr. Environmental Engineer
7 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$100K – $150K a yearEngineeringMariana Minerals is hiring a Sr. Environmental Engineer to provide technical environmental engineering support across our U.S. mining, processing, and refining project sites in a fast-paced, multi-project environment. Reporting to the Global Environmental Permitting Lead, you…
Sr./Staff Process Controls Engineer
7 weeks agoMariana Minerals · Houston, Texas, United States +3
On-siteFull-timeLead / staff$150K – $200K a yearEngineeringMariana Minerals is looking for a highly motivated Process Controls Engineer to work on building the critical minerals supply chain.
R&D Metallurgist
8 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-time$110K – $140K a yearEngineeringThe R&D Metallurgist designs, executes, and analyzes experiments to advance Mariana Minerals' hydrometallurgical testing programs. This hands-on laboratory and pilot-scale role focuses on running DOE protocols, operating tank reactors and mining systems, and analyzing data to…
Staff Process Controls Engineer
2 months agoMariana Minerals · San Francisco, California, United States +3
On-siteFull-timeLead / staff$150K – $200K a yearEngineeringMariana Minerals is looking for a highly motivated Controls Engineer to work on building the critical minerals supply chain.
Full Stack Software Engineer
2 months agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-time$80K – $160K a yearEngineeringMariana Minerals is looking for a highly motivated Full Stack Software Engineer to work on building the critical minerals supply chain to support the world’s energy transition.
Process Engineer
2 months agoMariana Minerals · Joaquin, Texas, United States
On-siteFull-timeMid levelEngineeringWe are looking for a Senior Process Engineer to work with our innovative, fast-paced multidisciplinary team. They will be responsible for liaising between R&D and operations, with a focus on chemical process development, successful scale-up of new product execution, and…
Extractive Metallurgist
2 months agoMariana Minerals · Moab, Utah, United States
On-siteFull-time$100K – $160K a yearEngineeringWe are seeking an Extractive Metallurgist to join our growing technical team in Moab, UT. This role will play a critical part in the development, optimization, and scale-up of mineral processing systems for Mariana’s global operations. The ideal candidate brings strong process…
Process Safety Engineer
4 months agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeSeniorEngineeringMariana 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…
Mechatronics Engineer (Hardware)
4 months agoMariana Minerals · San Francisco, California, United States
On-siteFull-time$140K – $200K a yearEngineeringWe are hiring a Mechatronics Engineer (Hardware) to design and build the actuation, automation, and robotic hardware that makes our autonomous mining vehicles move.
Head of Engineering Programs
4 months agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeDirector$180K – $240K a yearEngineeringWe are hiring a Head of Engineering Programs to lead the planning, coordination, and execution of Mariana’s capital project programs from development through construction.
Staff Piping Engineer
6 months agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeLead / staff$170K – $210K a yearEngineeringWe are hiring a Staff Piping Engineer to build and lead the piping discipline behind our refining and minerals processing facilities.
Sr. Site Development Engineer
7 months agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeSenior$150K – $200K a yearEngineeringMariana Minerals is seeking a highly motivated Sr. Site Development Engineer to lead the planning and design of greenfield project sites. In this role, you will be responsible for end-to-end site development—from early-stage site selection and feasibility through detailed…
Senior Full Stack Software Engineer
13 months agoMariana Minerals · San Francisco, California, United States +3
On-siteFull-timeSenior$150K – $220K a yearEngineeringMariana Minerals is looking for an experienced Senior Full Stack Software Engineer to lead critical technical initiatives in building the next-generation critical minerals supply chain to support the world's energy transition.
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.