Marianaminerals
Fabrication Technician
San Francisco HQ. Posted 25 days ago
The role
You will support the design, installation, and maintenance of refining processes for critical minerals. You will drive the fabrication, installation, modification, startup, and commissioning of new equipment and pilot plant systems.
What you will do
- Drive fabrication, installation, modification, startup, and commissioning of new equipment and pilot plant systems
- Troubleshoot and repair mechanical issues on plant equipment including pumps, valves, piping systems, and filtration units
- Read and interpret engineering drawings, P&IDs, and equipment manuals
- Perform maintenance activities following plant safety procedures including Lockout/Tagout, hot work permitting, and confined space entry
- Utilize MarianaOS CMMS system to document equipment builds and troubleshooting
Required qualifications
- Ability to travel occasionally (10-25%) of the time to other Mariana sites to support fabrication activities
- Ability to climb stairs, stand for extended periods of time, and safely lift up to 50 lbs.
Nice to have
- Associate degree, technical certificate, or equivalent hands-on experience in industrial fabrication, mechanical technology, millwright work, or related field
- 3+ years of experience building or supporting industrial equipment in the minerals processing, chemicals, specialty materials, oil & gas, biotech, or similar industries
- Hands-on experience fabricating, modifying, and/or constructing industrial equipment
- Hands-on experience with troubleshooting tasks such as pump repair, valve replacement, and instrument troubleshooting
- Familiarity with core plant safety practices including Lockout/Tagout (LOTO), hot work permits, confined space entry, and safe work permitting systems
- Ability to read and interpret engineering drawings such as P&IDs, equipment diagrams, and mechanical layouts
About the company
Mariana Minerals is a software-first, vertically integrated minerals company. They aim to supply critical minerals powering modern energy, AI, and defense technologies.