Principal, Infra Mainframe - zOS & Config Management
Core
Lead architecture, design, standards, and governance for IBM Z configuration management and z/OS systems programming to ensure stability, compliance, and resilience of a regulated banking platform.
Role type
Principal, hands-on IC Mainframe Systems Architect
Builds
Production, DR, and test estates for a regulated banking platform
Domain
Banking / Mainframe Systems
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
IODF, HCD, Parallel Sysplex, STP, PR/SM, z/OS, SMP/E, WLM, JES2, ACF2, RACF, USS, RMF, SMF, automation, change governance, disaster recovery, performance tuning, compliance
Preferred skills
GDPS, CICS TS, IBM MQ, Db2 for z/OS, Ansible for Z, Git-based controls, zCX, AI-assisted operations
Technologies
IBM Z System Automation, Watsonx Assistant for Z
Responsibilities
Lead mainframe configuration and z/OS architecture across production, DR, and test estates; Define standards for IODF/HCD, sysplex, STP, PR/SM, parmlib, proclib, and maintenance governance; Serve as design authority for high-risk changes, upgrades, hardware and software refreshes, and recovery testing; Lead performance, resilience, configuration drift, and compliance reviews across the platform; Provide technical leadership across sysprog, infrastructure, operations, and audit stakeholders; Own z/OS base architecture, release strategy, SMP/E governance, maintenance planning, and currency management; Architect WLM, JES2, and USS services to support performance, workload priorities, and operational stability; Define SMF recording, monitoring feeds, and system data standards for capacity, compliance, and reporting; Lead upgrade strategy and architecture for core z/OS services; Own IBM Z configuration architecture across IODF/HCD, sysplex, STP, and PR/SM; Act as design authority for configuration changes, pre-IPL validation, and hardware refresh readiness; Define and govern sysplex, CF, CFRM, ARM, SFM, and CDS architecture; Set standards for STP, LPAR design, processor allocation, capping, and specialty engines; Lead automation and configuration management, including version control, drift detection, and change traceability; Build, validate, and troubleshoot IODF, STP, CFRM, and sysplex configurations and failures; Support AI-enabled validation and operational insight for configuration and platform health; Define and enforce engineering standards, validation gates, and control requirements across configuration and z/OS; Review and approve MSP designs, change plans, runbooks, RCAs, and technical deliverables; Assess MSP deliverables for quality, compliance, and evidence against bank standards; Own key z/OS administration areas including USS, SMF, TCP/IP, and related system configuration changes; Diagnose z/OS incidents using IPCS and lead technical root-cause analysis for platform issues; Provide technical authority for z/OS upgrades and maintenance, including pre-change validation and post-change sign-off; Govern MSP-led execution to ensure changes meet architecture, operational, and audit requirements
Seniority
Principal, hands-on IC
