Principal z/OS Mainframe Network Engineer - Equity Options

UnitedHealth Group; Eden Prairie (MN); On-site; USD 113,000 - 193,000; Full time

Benefits offered by this job

Comprehensive benefits package

Incentive and recognition programs

Equity stock purchase

401k contribution

Job summary

Optum Tech is part of UnitedHealth Group and leads mainframe network programming for z/OS environments. The role focuses on configuring, tuning, and securing z/OS Communications Server, VTAM, and FTP-related services to ensure high availability and optimal performance across enterprise healthcare systems.

You will participate in on-call rotations, work weekend maintenance as needed, and utilize enterprise-approved AI tools to streamline workflows and analyze operational data for continuous

Qualifications

• 10+ years of mainframe system programming experience with TSO/ISPF.
• 10+ years configuring zSeries Communications Services (VTAM, TCP/IP, TN3270).
• 5+ years using network monitoring/troubleshooting tools (NetView, MainView, OMEGAMON).
• 3+ years installing, configuring, and supporting Connect:Direct/NDM.
• Ability to provide 24x7x365 operational support.

Responsibilities

• Configure, tune, and troubleshoot z/OS Communications Server components (VTAM, TCP/IP, FTP).
• Install and maintain file transfer protocols including Connect:Direct/NDM and TLS-based FTP/SFTP/FTPS.
• Define and maintain Policy Agent configurations and OSA definitions.
• Provide advanced performance tuning using mainframe network monitoring tools.
• Support on-call rotations and weekend maintenance windows.
• Leverage AI tools to streamline workflows and analyze operational data.
• Evaluate emerging AI trends for LinuxOne and mainframe system programming.

Skills

Mainframe system programming

z/OS VTAM & TCP/IP experience

NOC on-call support

Education

Bachelor's degree in Computer Science / IT or related field

Tools

VTAM

TCP/IP

Connect:Direct/NDM

NetView

MainView

OMEGAMON

Job description

Optum Tech is part of UnitedHealth Group and leads mainframe network programming for z/OS environments. The role focuses on configuring, tuning, and securing z/OS Communications Server, VTAM, and FTP-related services to ensure high availability and optimal performance across enterprise healthcare systems.

You will participate in on-call rotations, work weekend maintenance as needed, and utilize enterprise-approved AI tools to streamline workflows and analyze operational data for continuous