Senior Mainframe Performance Analyst (Remote)

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

Job summary

Optum is a global organization delivering care through technology to help millions lead healthier lives. This role involves leveraging extensive mainframe experience to maintain performance and reliability across multi-LPAR environments, with a focus on proactive tuning and event-driven incident resolution.

Your day-to-day will include developing system performance reports using MXG, SAS and Splunk, monitoring health, and delivering actionable optimization recommendations while supporting 24x7

Qualifications

• Undergraduate degree or equivalent experience.
• 10+ years of mainframe systems experience with performance management for large, multi-processor, multi-LPAR, Parallel Sysplex environments.
• 2+ years of experience with SAS programming.
• Familiarity with WLM (workload manager), MXG, & ThruPut Manager (batch priority software).
• Familiarity with SMF/RMF record structures.
• Familiarity with statistical data.
• Familiar with Omegamon as a system performance monitor.
• Basic knowledge of zOS, JCL, and ability to modify jobstreams for batch.
• Knowledge and proficiency in the use of TSO and ISPF.
• Knowledge of z/OS, z/VM, z/Linux, CICS, DB2, Strobe, & monitoring systems (e.g. Omegamon).
• All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy.

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

Performance management

SAS programming

WLM

SMF/RMF

Omegamon

JCL/TSO/ISPF

z/OS/z/Linux

CICS/DB2/Strobe

Multiplatform zOS/zLinux

Education

Undergraduate degree or equivalent experience

Tools

MXG

ThruPut Manager

Splunk

Job description

Optum is a global organization delivering care through technology to help millions lead healthier lives. This role involves leveraging extensive mainframe experience to maintain performance and reliability across multi-LPAR environments, with a focus on proactive tuning and event-driven incident resolution.

Your day-to-day will include developing system performance reports using MXG, SAS and Splunk, monitoring health, and delivering actionable optimization recommendations while supporting 24x7