Cynet Systems · 2 days ago
Mainframe z/OS System Programmer - Remote / Telecommute
United States
Full-time
Remote
Senior LevelCynet Systems is seeking a Mainframe z/OS Systems Programmer to be responsible for the installation, upgrade, maintenance, and optimization of the z/OS operating system and associated ISV products. This role ensures system stability, performance, security, and high availability while supporting critical business workloads.
EmploymentRecruitingStaffing Agency
Responsibilities
Plan, prepare, and execute z/OS operating system upgrades, including pre-installation checks, customization, testing, and post-upgrade validation
Apply IBM PTFs and APARs using SMP/E to maintain system integrity and resolve issues
Perform regular IPLs and system restarts as required
Monitor system health, performance, and resource utilization using RMF, SMF, Omegamon, and related tools
Install, configure, upgrade, and maintain ISV products across security, performance monitoring, scheduling, storage management, databases, and utilities
Ensure compatibility and smooth integration of ISV products within the z/OS environment
Coordinate with vendors for licensing, technical support, and problem resolution
Perform system reconfigurations and PARMLIB updates
Manage critical system datasets such as SYSRES, page datasets, and SMF datasets
Provide expert-level incident support, including problem determination and resolution
Participate in on-call rotation to support critical systems
Analyze performance metrics to identify bottlenecks and improvement opportunities
Tune z/OS components, WLM, and ISV products to optimize system and application performance
Develop and maintain REXX, JCL, and automation scripts for system administration and monitoring
Participate in disaster recovery planning, testing, and execution
Ensure high availability and recoverability of mainframe systems
Create and maintain system documentation including installation guides, configurations, procedures, and troubleshooting references
Follow ITIL best practices for change, incident, and problem management
Work closely with application teams, DBAs, operations, and infrastructure groups
Mentor junior systems programmers and promote knowledge sharing
Implement and enforce z/OS and ISV security best practices
Ensure compliance with internal policies and regulatory requirements
Qualification
Required
Extensive hands-on experience as a Mainframe Systems Programmer
Strong expertise in z/OS installation, configuration, maintenance, and upgrades
Proven experience executing major z/OS version upgrades
Proficiency in JCL, TSO/ISPF, SMP/E, JES2/JES3
Hands-on experience supporting ISV products across security, monitoring, scheduling, storage, database, and utility domains
Solid understanding of mainframe networking including TCP/IP and VTAM
Experience with performance tuning, capacity planning, and automation
Strong analytical, troubleshooting, and communication skills
Ability to work independently and collaboratively in a fast-paced environment
Preferred
Experience with Parallel Sysplex environments
Knowledge of z/VM or Linux on Z
Exposure to mainframe modernization or hybrid cloud initiatives
Relevant z/OS or mainframe technology certifications preferred
Company
Cynet Systems
Headquartered in Washington DC Metro Area, Cynet Systems is a top talent supplier for companies across North America.
Founded in 2010
1001-5000 employees
Funding
Current Stage
Late StageLeadership Team
Ashwani (Ash) M.
Partner and Co-CEO
Nikhil "Nick" Budhiraja
Founder / Co-CEO
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