[Hiring] Senior Db2 for z/OS Systems Programmer @General Dynamics Information Technology

Role Description

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 you’ll do at GDIT will be impactful to the mission of our customers. You will 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

Qualifications

• 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

Benefits

• AI-powered career tool that identifies career steps and learning opportunities
• An internal mobility team focused on helping you achieve your career goals
• Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• Full-flex work week to own your priorities at work and at home
• Award-winning culture of innovation and a military-friendly workplace