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Contract Z Os Mainframe Systems Programmer Jobs in California

US Bank

z/OS Systems Engineer

Cupertino, CA · On-site

Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and troubleshooting of z/OS and third-party ...

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Contract Z Os Mainframe Systems Programmer information

What is the difference between Contract Z Os Mainframe Systems Programmer vs Contract IBM Z Mainframe Network Engineer?

AspectContract Z Os Mainframe Systems ProgrammerContract IBM Z Mainframe Network Engineer
CredentialsMainframe certifications, z/OS knowledgeNetworking certifications, TCP/IP, z/OS networking skills
Work EnvironmentMainframe data centers, z/OS environmentsNetwork infrastructure, mainframe data centers
Employer & IndustryFinancial, government, insurance sectorsFinancial, telecommunications, large enterprises
Common Search IntentSystem programming, mainframe OS supportNetwork setup, security, and connectivity on mainframes

The Contract Z Os Mainframe Systems Programmer primarily focuses on maintaining and optimizing z/OS environments, while the Contract IBM Z Mainframe Network Engineer specializes in network connectivity and security within mainframe settings. Both roles require mainframe expertise but differ in their technical focus and responsibilities.

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Infographic showing various Contract Z Os Mainframe Systems Programmer job openings in California as of June 2026, with employment types broken down into 92% Full Time, and 8% Part Time. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

IBM Mainframe Z/OS Systems Programmer

West Advanced Technologies (WATI)

Downey, CA • On-site

$56.75 - $72.25/hr

Full-time

Re-posted 4 days ago

Job description

IBM Mainframe Z/OS Systems Programmer
Downey, CA
12 months
Need someone local or who can relocate
Description: Client seeks to obtain the services of consultant at the level of IBM Z/OS Systems Programmer to assist client's Technology Division (TD) with the IBM Mainframe operating system environment. The Consultant shall assist with the upgrade and migration of z/OS 2.3 to z/OS 2.4, including migration of the Disaster Recovery (DR) site from Mainframe Z12BC to new Z15, this includes customization and problem determination on zSeries type Processors with their associated HMC Consoles, SYSPLEX, Coupling Facilities, OSA (Networking Interface), ICC (Integrated Console Controller), FICON, DASD and Tape management, and Network.
Responsibilities:
The Consultant shall perform all of the following:
Install/Upgrade z/OS 2.3 to 2.4 using SMP/E and SHOPz.
Modify HCD/IODEF changes to support Z12BC to Z15 hardware upgrade.
Upgrade Z/OS third party tools to support Z/OS 2.4.
Setup and configure FTP to FTPS conversion changes on Z/OS end.
Define and maintain Sysplex, Coupling Facilities, HMC (Processor Interface), OSA (Networking Interface), ICC (Integrated Console Controller), FICON (Fiber connectivity to peripheral devices).
Implement IBM zSeries Coupling Facility structure definition and operation support to move structures for machine outages, FICON switch configuration and definition in HCD, Server Time Protocol (STP) configuration and operation.
Work on IBM's ISPF, JCL, SDSF, CLISTs, REXX execs, and TSO/E command processors to assist in the customization and usability of z/OS and program products.
Document all technical work, enhance existing documentation, and maintain all documentation in the Section's documentation repository.
Provide technical assistance to customers and Operations Division.
Provide z/OS troubleshooting, problem resolution and 24 x 7 x 365 on-call after hours and weekend support.
Required Skills:
Three (3) years of experience in the last seven (7) years as a systems programmer using IBM's ServerPac/SHOPz/SMPe for installing, configuring, and updating the z/OS operating system and other system level software products on IBM Mainframe hardware in a Parallel Sysplex environment.
Three (3) years of experience in the last seven (7) years as a systems programmer developing IBM zSeries Coupling Facility structure definition and operation support to move structures for machine outages.
Three (3) years of experience in the last seven (7) years as a systems programmer configuring IBM Enterprise Server LPARs and System Time Protocol (STP), using IBM's Hardware Management Console (HMC).
Regards
Naresh Damagalla
West Advanced Technologies, Inc
E: naresh.d@wati.com

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