Software Engineer III (Mainframe Assembler(HLASM)- z/OS Security & Systems (zAssure Portfolio)
Core
Design, develop, and maintain HLASM-based components for z/OS security and system tooling, while diagnosing complex production issues and performing root cause analysis.
Role type
Senior IC Mainframe Engineer (z/OS Security & Systems)
Builds
z/OS security tools (VAP) and system diagnostics
Domain
Mainframe computing (z/OS) and cybersecurity
Deliverable
production ML models | product features | infrastructure
Required skills
HLASM (Assembler), z/OS internals, GTF trace analysis, JCL, ISPF, SDSF, APF authorization, SVC/PC routines, memory/execution model, Git
Preferred skills
REXX scripting, system exits/hooks, performance tuning, DB2/VSAM, customer escalation support
Technologies
z/OS, HLASM, GTF, JCL, ISPF, SDSF, Git
Responsibilities
Design and maintain HLASM components for z/OS security; diagnose complex issues using z/OS diagnostic tools; analyze APF-authorized programs and system behavior; perform root cause analysis for performance and security issues; debug and validate behavior using system utilities; collaborate on L3 escalations and product fixes; contribute to tooling and modernization efforts.
Seniority
Senior, hands-on IC
