Remote Senior Mainframe Performance Analyst

UnitedHealth Group; Eden Prairie (MN); Remote; Confidential; Full time

Benefits offered by this job

Comprehensive benefits package

401(k) contribution

Remote work opportunity

Job summary

UnitedHealth Group is seeking an experienced mainframe systems professional to lead performance monitoring and optimization across multi-LPAR and Parallel Sysplex environments. You will maintain performance reporting using MXG and SAS, troubleshoot health conditions, and participate in a 24x7 on-call rotation for system reliability.

The role supports z/OS, z/Linux, CICS, and related technologies. Remote work is allowed from anywhere in the U.S.

Qualifications

• Undergraduate degree or equivalent experience.
• 10+ years of mainframe systems experience with performance management for large, multi-processor, multi-LPAR environments.
• 2+ years of experience with SAS programming.
• Familiarity with WLM, MXG and ThruPut Manager (batch priority software).
• Familiarity with SMF/RMF record structures.
• Familiarity with statistical data.
• Basic knowledge of zOS, JCL, and ability to modify jobstreams for batch.
• Knowledge of z/OS, z/VM, z/Linux, CICS, DB2, Strobe, and monitoring systems.

Responsibilities

• Utilize knowledge of large scale operational and system concepts.
• Develop and maintain system performance reporting using MXG, SAS, and Splunk
• Monitor daily system health for areas of improvement and exceptions.
• Deliver recommendations for enhancing performance.
• Perform problem resolution to system health conditions.
• Research coupling facility performance and/or LPAR weights and capping.
• Participation in a 24x7x365 oncall rotation to support performance & restoration of health.
• Has responsibility and capability to work multi-platforms with zOS and/or zLinux.
• Troubleshoot complex incidents and develop skills for future technologies.
• Develop POC of new products and define center of excellence for the organization.
• Designs and documents technical solutions required to support complex business system including general documentation for use by Computer Operations
• Usage of AI is required for daily support and assistance in efficient productivity.

Skills

Mainframe systems

SAS programming

WLM / RMF familiarity

MXG knowledge

ThruPut Manager

Education

Bachelor’s degree or equivalent

Tools

zOS

JCL

ISPF

Omegamon

Job description

UnitedHealth Group is seeking an experienced mainframe systems professional to lead performance monitoring and optimization across multi-LPAR and Parallel Sysplex environments. You will maintain performance reporting using MXG and SAS, troubleshoot health conditions, and participate in a 24x7 on-call rotation for system reliability.

The role supports z/OS, z/Linux, CICS, and related technologies. Remote work is allowed from anywhere in the U.S.