Senior z/OS Mainframe Network Engineer

U.S. Bank; Irving (TX); On-site; USD 120,000 - 141,000; Full time

Benefits offered by this job

Healthcare (medical, dental, vision)

401(k) retirement plan

Paid vacation and holidays

Life insurance

Job summary

U.S. Bank is seeking an experienced IBM z/OS Systems Programmer to administer and optimize enterprise mainframe networking, including VTAM, TCP/IP, TN3270, and TPX Session Manager in large-scale production. You will implement secure file transfer solutions and support GDPS disaster recovery readiness.

You’ll provide technical leadership, participate in vendor evaluations, and ensure robust network operations, architecture, and security across z/OS and distributed systems.

Qualifications

• Associate's degree or equivalent work experience.
• 7+ years experience delivering network services in IT environments.
• 7+ years experience managing day-to-day IT network delivery.

Responsibilities

• Administer, configure, tune, and troubleshoot z/OS Communications Server (VTAM, TCP/IP, TN3270) for high availability.
• Install, maintain, test, document, and support vendor mainframe software; perform root cause analysis.
• Manage TPX Session Manager environment: configuration, maintenance, performance optimization, issue resolution.
• Install, configure, and support Connect:Direct and other enterprise file transfer solutions for secure data exchange.
• Support GDPS network configurations, disaster recovery readiness, and business continuity testing.
• Design and troubleshoot secure file transfer (FTP, SFTP, FTP-ATTLS) and related security standards.
• Participate in network architecture, IP design, and cross-platform z/OS to distributed system integrations.
• Provide technical leadership through vendor evaluations, documentation, standards, and on-call rotation.

Skills

z/OS Systems Programming

VTAM / TCP/IP / TN3270

TPX Session Manager

Connect:Direct

GDPS / DR planning

Security & File Transfer

Networking Architecture

On-call Support

Education

Associate's degree or equivalent

Tools

TPX Session Manager

Connect:Direct

SMP/E

GDPS

VTAM

Job description

U.S. Bank is seeking an experienced IBM z/OS Systems Programmer to administer and optimize enterprise mainframe networking, including VTAM, TCP/IP, TN3270, and TPX Session Manager in large-scale production. You will implement secure file transfer solutions and support GDPS disaster recovery readiness.

You’ll provide technical leadership, participate in vendor evaluations, and ensure robust network operations, architecture, and security across z/OS and distributed systems.