Sr. Systems Engineer – Mainframe API Services
U.S. Bank National Association · Posted Nov 2, 2026
- Saint Paul, Minnesota, United States
- Senior
- $105K–$124K per year
- 5+ years
Senior Systems Engineer responsible for mainframe API services, modernization, and reliability.
Compensation
Pay Range: $105,400.00 - $124,000.00
Responsibilities
- Configure, administer, and support IBM z/OS Connect and Liberty in enterprise mainframe environments.
- Support REST APIs integrating with CICS and z/OS applications and services.
- Troubleshoot API, network, TLS, security, performance, and connectivity issues.
- Administer z/OS Connect services within Unix System Services (USS).
- Configure RACF/SAF, authentication, authorization, TLS certificates, and key rings.
Requirements
- Bachelor’s degree