# Sr. Mine Engineer, Planning and Optimization
> **LCA (H-1B / H-1B1 / E-3)** labor certification — `I-200-26057-668250` · Certified · decided 2026-03-05
## Employer
- **Name:** Mariana Minerals Co.
- **Location:** San Francisco, CA, UNITED STATES OF AMERICA
- **FEIN:** 99-4900198
- **NAICS:** 2123
## Job
- **Title:** Sr. Mine Engineer, Planning and Optimization
- **SOC:** 17-2151.00 — Mining and Geological Engineers, Including Mining Safety Engineers
- **Workers requested:** 1
- **Worksite:** San Francisco, CA
- **Employment period:** 2026-08-26 → 2029-08-25
## Wage
- **Offered:** $175,000 per year
- **Prevailing wage:** $173,888 per Year
- **Wage level:** Level IV
## Representation
- **Attorney:** Mary Bluma
- **Firm:** Erickson Immigration Group
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*Source: [DOL OFLC](https://www.dol.gov/agencies/eta/foreign-labor/performance) · MORVS · CC0 1.0*