Senior Db2 for z/OS Systems Programmer

General Dynamics Information Technology

. Responsible for performance, availability, and lifecycle management of Db2 for z/OS subsystems supporting high-volume, mission-critical Medicaid and healthcare systems.

Posted 5/2/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $136,000 - $184,000 per yearWebsite

Tech Stack

Tools & technologies

ServiceNowSQL

About the role

Key responsibilities & impact

Responsible for performance, availability, and lifecycle management of Db2 for z/OS subsystems supporting high-volume, mission-critical Medicaid and healthcare systems.
Operate in a large-scale data sharing environment with heavy distributed (DDF) workloads, strict audit controls, and 24x7x365 availability requirements.
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
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
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
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
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
Create and manage ServiceNow change records
Ensure proper approvals and scheduling
Communicate changes to stakeholders
Maintain compliance with production standards

Requirements

What you’ll need

10+ years of related experience
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
Ability to provide on-call support 24x7 due to potential outage penalties
Capability for off-hours work for maintenance and upgrades
Bachelor of Arts/Bachelor of Science in Computer Science or related field

Benefits

Comp & perks

Comprehensive benefits and wellness packages
401K with company match
Competitive pay and paid time off
Full-flex work week to own your priorities at work and at home
A variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
15 days of paid leave per calendar year
An additional 10 paid holidays per year
Short and long-term disability benefits
Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Db2 for z/OSDDFperformance tuningSMFRMFSASExcelSQLCobolDb2 Connect

Soft Skills

communicationleadershipcollaborationproblem-solvinganalytical thinkingreportingroot cause analysisstakeholder managementtime managementadaptability