Mainframe zOS System Programmer

Role : - Mainframe z / OS System Programmer

Location : - Salisbury NC / Boston MA / Frisco TX

Mainframe z / OS Systems Programmer : 7-10 years of hands-on experience as a Mainframe Systems Programmer.

Job Summary : We are seeking a highly skilled and experienced Mainframe z / OS Systems Programmer to join our dynamic IT team. The successful candidate will be responsible for the installation maintenance and upgrade of the z / OS operating system as well as various Independent Software Vendor (ISV) products. This role requires deep technical expertise in mainframe technologies a strong understanding of system performance tuning problem diagnosis and a commitment to ensuring the stability security and efficiency of our critical mainframe infrastructure.

• Key Responsibilities :
• z / OS Upgrades and Maintenance :
• Plan prepare and execute z / OS operating system upgrades (e.g. from z / OS 2.x to z / OS 3.x) including pre-installation checks customization testing and post-upgrade verification.
• Apply IBM PTFs (Program Temporary Fixes) and APARs (Authorized Program Analysis Reports) to maintain system integrity and resolve reported issues.
• Perform regular IPLs (Initial Program Loads) and system restarts as required for maintenance and upgrades.
• Monitor z / OS system health performance and resource utilization using tools like RMF SMF Omegamon etc.
• ISV Product Management :
• Install configure upgrade and maintain a wide range of Independent Software Vendor (ISV) products (e.g. Broadcom / CA BMC IBM Rocket Software etc.). This includes products for security (ACF2 Top Secret RACF) performance monitoring job scheduling (CA-7 TWS) storage management (SMS CA-Disk FDR / ABR) database (DB2 IMS VSAM) and other utilities.
• Collaborate with vendors for problem resolution licensing and technical support.
• Ensure compatibility and integration of ISV products with the z / OS environment.
• System Maintenance and Support :
• Perform system IPLs reconfigurations and PARMLIB updates.
• Manage and maintain critical system datasets (e.g. SYSRES Page datasets SMF datasets).
• Provide expert-level support for mainframe incidents including problem determination diagnosis and resolution in a timely manner.
• Participate in on-call rotation for 24 / 7 support of critical systems.
• Performance Tuning and Optimization :
• Analyze system performance data to identify bottlenecks and recommend improvements.
• Tune various z / OS components WLM (Workload Manager) and ISV products to optimize resource utilization and application performance.
• Automation and Scripting :
• Develop and maintain REXX JCL and other scripts for system automation monitoring and administrative tasks.
• Disaster Recovery and Business Continuity :
• Participate in the planning testing and execution of disaster recovery procedures for the mainframe environment.
• Ensure high availability and recoverability of critical systems.
• Documentation and Best Practices :
• Create and maintain comprehensive system documentation including installation guides configuration details operational procedures and troubleshooting guides.
• Adhere to ITIL best practices for change management incident management and problem management.
• Collaboration and Mentorship :
• Work closely with application development teams database administrators operations staff and other infrastructure teams.
• Mentor junior systems programmers and share knowledge effectively.
• Security and Compliance :
• Implement and enforce security best practices within the z / OS environment and for ISV products.
• Ensure compliance with internal security policies and external regulations.
• Required Skills and Experience :
• 7-10 years of hands-on experience as a Mainframe Systems Programmer.
• In-depth knowledge and hands-on experience with z / OS operating system installation configuration and maintenance.
• Proven experience with major z / OS upgrades (e.g. from one version to another).
• Strong proficiency in JCL TSO / ISPF SMP / E JES2 / JES3.
• Extensive experience with the installation and support of various ISV products from vendors such as Broadcom / CA BMC IBM and Rocket Software. Specific product experience in areas like :
• Security : RACF ACF2 or Top Secret
• Performance Monitoring : Omegamon RMF SMF
• Scheduling : CA-7 TWS / OPC
• Storage Management : SMS DASD management tools (e.g. CA-Disk FDR / ABR)
• Database : DB2 IMS VSAM
• Utilities : DFSORT Syncsort
• Solid understanding of mainframe networking (TCP / IP VTAM).
• Experience with z / OS performance tuning and capacity planning.
• Proficiency in REXX or other scripting languages for automation.
• Strong problem-solving analytical and troubleshooting skills.
• Excellent communication (written and verbal) and interpersonal skills.
• Ability to work independently and as part of a team in a fast-paced environment.
• Strong commitment to quality and attention to detail.
• Desired Skills and Experience (Plus Points) :
• Experience with Parallel Sysplex environments.
• Knowledge of z / VM or Linux on Z.
• Experience with mainframe modernization initiatives or hybrid cloud environments.

Certifications related to z / OS or specific mainframe technologies.

Key Skills

Banking Operations,Credit,Chemical Engineering,Hospital,EHS

Employment Type : Full Time

Experience : years

Vacancy : 1