# Operational Engineer Senior
> **PERM (Permanent Labor Certification)** labor certification — `G-100-24348-541506` · Withdrawn · decided 2025-11-13
## Employer
- **Name:** CSG Systems Inc. d/b/a CSG
- **Location:** Englewood, CO, UNITED STATES OF AMERICA
- **FEIN:** 47-0772478
- **NAICS:** 541511
## Job
- **Title:** Operational Engineer Senior
- **SOC:** 15-1252.00 — Software Developers
- **Workers requested:** —
- **Worksite:** Englewood, CO
- **Employment period:** — → —
## Wage
- **Offered:** $152,069–$162,069 per year
## Representation
- **Attorney:** Nathan Roy
- **Firm:** Berry Appleman & Leiden LLP
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*Source: [DOL OFLC](https://www.dol.gov/agencies/eta/foreign-labor/performance) · MORVS · CC0 1.0*