Senior Db2 for z/OS Systems Programmer

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 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

DB2,IBM z/OS,Mainframe Computers, 10 + years of related experience, 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

The likely salary range for this position is $136,000 - $184,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year. Paid leave and paid holidays are prorated based on the employee's date of hire. The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.