Advance how our customers operate while you advance your career. Join GDIT as a Senior Db2 for z/OS Systems Programmer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.
The Senior Db2 for z/OS Systems Programmer is responsible for performance, availability, and lifecycle management of Db2 for z/OS subsystems supporting high-volume, mission-critical Medicaid and healthcare systems. They operate in a large-scale data sharing environment with heavy distributed (DDF) workloads, strict audit controls, and 24x7x365 availability requirements
MEANINGFUL WORK AND PERSONAL IMPACT As a Senior Db2 for z/OS Systems Programmer, the work youll do at GDIT will be impactful to the mission of our customers. You willwill play a crucial role via the following:
Db2 Performance & Monitoring
Analyze DDF activity, connection pooling, and thread usage
Tune buffer pools, EDM pool, and memory usage
Resolve locking, latching, and concurrency issues
Identify performance degradation and implement solutions
Provide proactive performance recommendations
Performance Reporting (SAS / Excel)
Develop daily/weekly/monthly reports using SMF/RMF data
Analyze CPU utilization, transaction volumes, and workload trends
Highlight anomalies and emerging risks
Translate technical metrics into user-friendly reports for leadership
Installation, Maintenance & Upgrades
Install and configure Db2 subsystems and tools
Apply RSUs, PTFs, and HIPER maintenance
Execute Db2 version upgrades aligned with IPL windows
Perform validation and ensure system stability post-upgrade
Disaster Recovery & Audit Support
Participate in DR exercises ensuring full system recovery
Validate image copies and backup integrity
Ensure recoverability of all critical tablespaces
Support audit requirements and documentation
Problem Determination
Lead root cause analysis for system and performance issues
Investigate DDF spikes, CPU anomalies, and contention issues
Collaborate with application, storage, and z/OS teams
Interface with IBM support when needed
Change Management
Create and manage ServiceNow change records
Ensure proper approvals and scheduling
Communicate changes to stakeholders
Maintain compliance with production standards
Day in the Life / Weekly Cycle
Daily monitoring of Db2 subsystem health and performance metrics
Review and distribute performance reports to stakeholders
Investigate anomalies such as DDF spikes or CPU increases
Coordinate with application teams on performance issues
Prepare and implement maintenance or changes
Participate in meetings related to DR, upgrades, or production issues
WHAT YOULL NEED TO SUCCEED Bring your technology expertise and drive for innovation to GDIT. The Senior Db2 for z/OS Systems Programmer, must have:
Education: Bachelor of Arts/Bachelor of Science in Computer Science or related field
Experience: 10+ years of related experience
Required Technical Skills:
Strong expertise in data sharing and DDF environments
Experience with SMF/RMF analysis and performance tuning
Proficiency with SAS and Excel for reporting
Deep knowledge of Db2 internals and architecture
Experience with Omegamon
Working knowledge of the following: ZOS MVS SMPE TSO ISPF SDSF IFCID SQL EXPLAIN Cobol Db2 Connect Bind Catalog Db2 Utilities
Required Skills:
Ability to provide on-call support 24x7 due to potential outage penalties
Capability for off-hours work for maintenance and upgrades
Location: Remote
GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities Support: An internal mobility team focused on helping you achieve your career goals Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Flexibility: Full-flex work week to own your priorities at work and at home Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY Explore an enterprise IT career at GDIT and youll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.
