Senior z/OS Systems Programmer
Core
Senior technical leader maintaining and advancing the core mainframe operating system environment (z/OS), designing new features, ensuring quality/security/reliability, and optimizing Parallel Sysplex configurations.
Role type
Senior IC z/OS Systems Programmer
Builds
Core digital platform services on z/OS, mainframe infrastructure services
Domain
Mainframe computing / z/OS systems
Deliverable
production ML models | product features | infrastructure
Required skills
z/OS operating system architecture and internals, Parallel Sysplex (GDPS) and Coupling Facility management, SMP/E packaging and system installation, REXS/TSO/ISPF/JCL programming, z/OS performance tuning, Level 3 support for mainframe OS
Preferred skills
Assembler coding, z/OS 3.1 experience, German language skills
Technologies
z/OS, GDPS, Coupling Facility, SMP/E, REXX, TSO/ISPF, JCL, Assembler
Responsibilities
Design, develop, and improve core z/OS digital platform services; monitor production health, resolve incidents, and perform root-cause analysis; optimize Parallel Sysplex and Coupling Facility configurations; mentor junior engineers and contribute to engineering culture via code reviews and technical presentations; interface with lead engineering boards and stakeholders to align platform improvements with business goals.
Seniority
Senior, hands-on IC with leadership and mentorship