# Senior Researcher
> **LCA (H-1B / H-1B1 / E-3)** labor certification — `I-200-25308-370301` · Certified · decided 2025-11-14
## Employer
- **Name:** USG Corporation
- **Location:** Chicago, IL, UNITED STATES OF AMERICA
- **FEIN:** 36-3329400
- **NAICS:** 327420
## Job
- **Title:** Senior Researcher
- **SOC:** 19-2031.00 — Chemists
- **Workers requested:** 1
- **Worksite:** Libertyville, IL
- **Employment period:** 2026-04-03 → 2029-04-02
## Wage
- **Offered:** $120,000–$130,000 per year
- **Prevailing wage:** $119,829 per Year
- **Wage level:** Level IV
## Representation
- **Attorney:** Karen Selking
- **Firm:** Zulkie Partners LLC
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*Source: [DOL OFLC](https://www.dol.gov/agencies/eta/foreign-labor/performance) · MORVS · CC0 1.0*