Mariana Minerals
Metal Ore Mining
Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.
Is Mariana Minerals hiring?
Yes. As of November 14, 2026, Mariana Minerals has 102 open roles on Metaintro. 43 were posted in the last 30 days.
Open roles
Newest first. Pay shown when the posting lists it.
- Analytical Lab ChemistScience, Technology, Engineering, and MathSan Francisco, CA · On-site · $110K – $130K/yrSan Francisco, CAOn-site$110K – $130K/yr2d ago
- Regional Environmental ManagerEnvironmental ServicesMoab, UT · On-siteMoab, UTOn-site—4d ago
- Maintenance TechnicianManufacturingJoaquin, TX · On-siteJoaquin, TXOn-site—5d ago
- Maintenance Technician – Electrical & ControlsManufacturingJoaquin, TX · On-siteJoaquin, TXOn-site—5d ago
- Staff Instrumentation and Controls EngineerScience, Technology, Engineering, and MathSan Francisco, CA +3 · On-site · $150K – $200K/yrSan Francisco, CA +3On-site$150K – $200K/yr6d ago
- Procurement Manager, ConstructionOperations ManagementSan Francisco, CA +3 · On-site · $130K – $180K/yrSan Francisco, CA +3On-site$130K – $180K/yr6d ago
- Commissioning EngineerScience, Technology, Engineering, and MathHouston, TX +2 · HybridHouston, TX +2Hybrid—7d ago
- Lab TechnicianScience, Technology, Engineering, and MathMoab, UT · On-siteMoab, UTOn-site—9d ago
Hiring pattern
How fast Mariana Minerals is adding roles, and how they're set up.
New roles each monthRoles first posted in the month
How roles are set upShare of open roles
- On-site90%
- Hybrid3%
- Remote1%
- Not stated6%
Visa sponsorship history
Past U.S. work visa and green card filings by Mariana Minerals. Not a promise that any job here offers sponsorship.
4
H-1B work visa filings certified in FY2025
- Most recent certified filing: June 24, 2026
Source: U.S. Department of Labor, data through June 2026. Office of Foreign Labor Certification disclosure data, release FY2026 Q3.
| Filing | 2025 | 2026* |
|---|---|---|
| H-1B work visa | 4 | 17 |
*FY2026 is partial: filings through June 2026.
Most-filed rolesAll certified filings, FY2025 to FY2026 so far
- Software Developers4
- Mechanical Engineers4
- Civil Engineers3
- Mining and Geological Engineers, Including Mining Safety Engineers3
Most-filed statesAll certified filings, FY2025 to FY2026 so far
- California15
- Texas4
A certified filing is one step toward a visa or green card; U.S. immigration authorities decide each case. These records cover jobs in the United States only and say nothing about other countries. U.S. fiscal years run October to September.
Filed as Mariana Minerals Co.
AI launches and partners
What Mariana Minerals has launched and who it works with on AI.
- LaunchCapitalProjectOSCapitalProjectOS deploys a suite of AI agents to eliminate bulky, manual workflows.
Skills they ask for
Most frequent across open postings.
Most requested skills
- Troubleshooting
- Python
- CMMS
- Communication
- Preventive maintenance
- Machine learning
- ERP systems
- P&ID reading
- Mechanical aptitude
- XRF
- Safety compliance
- Sample preparation
Tech stack
- Analytics
- Google Analytics 4
Company facts
- Headquarters
- San Francisco
- Industry
- Metal Ore Mining
- Sector (NAICS)
- Mining, Quarrying, and Oil and Gas Extraction
- Peer
- Northern Star Resources
- Website
- marianaminerals.com
- Careers
- marianaminerals.com/careers
Roles by location
Where Mariana Minerals is hiring. Pick a city to see its roles.
Similar companies
Companies in the same industry as Mariana Minerals that are hiring now.
Questions about Mariana Minerals
- Is Mariana Minerals hiring?
- Yes. As of November 14, 2026, Mariana Minerals has 102 open roles on Metaintro. 43 were posted in the last 30 days. The most are in Science, Technology, Engineering, and Math (30), Architecture and Construction (14), and Manufacturing (11).
- Where is Mariana Minerals hiring?
- Mariana Minerals is hiring in San Francisco, Houston, Moab, Ann Arbor, Joaquin, and Austin, with the most open roles in San Francisco.
- Does Mariana Minerals offer remote or hybrid work?
- 3% of open roles are hybrid and 1% are remote.
- What skills does Mariana Minerals look for?
- Its open roles most often ask for Troubleshooting, Python, CMMS, Communication, and Preventive maintenance.
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