Infrastructure Engineer II

• Provide technical engineering and operational support for the Mainframe Services z/OS platform, including operating system support, systems programming, and data centre capabilities.
• Design, develop, and implement assigned systems engineering solutions while completing complex technical and analytical tasks with limited oversight.
• Serve as a seasoned technical resource and individual contributor; provide technical direction for special projects and operational activities without direct-report responsibility.
• Perform problem determination, root-cause analysis, and resolution for z/OS operating system and subsystem issues.
• Install, configure, test, maintain, upgrade, and support z/OS and associated system software on assigned environments.
• Provide system-level support for multi-user operating systems and related hardware and software tools, ensuring stability, availability, and recoverability.
• Evaluate existing and proposed systems, analyse technical information, draw sound conclusions, and recommend practical solutions.
• Identify opportunities to optimize mainframe resources, improve system performance, and strengthen operational efficiency.
• Research and plan hardware and software changes, including interfaces and dependencies with the operating system.
• Collaborate with networking, storage, security, application, and other technical teams to ensure system connectivity, compatibility, and reliable integration.
• Create and maintain accurate system, configuration, operational, and troubleshooting documentation.
• Assess current and emerging technologies and recommend solutions that align with business and platform requirements.

• Demonstrated working knowledge of the IBM z/OS operating system, including system control, architecture, processing logic, and RACF security.
• deep experience supporting IBM z/OS system and subsystem software in large-scale, globally deployed environments.
• Proven ability to develop and enhance tools, standards, and methodologies used to manage enterprise z/OS environments.
• Advanced problem-determination skills, including issue analysis, root-cause identification, and timely resolution.
• Extensive knowledge of IBM zEnterprise server hardware and supporting data centre facilities.
• Experience installing and servicing z/OS software using z/OSMF and SMP/E.
• Experience working with IBM electronic support resources, including IBMLINK.
• Subject-matter expertise in mainframe systems programming, with the ability to provide technical leadership and guidance.
• Experience supporting z/OS 3.1 environments running JES
  2.
• Proficiency with diagnostic and performance tools, including IPCS, RMF, MICS, SMF, Debug Tool, SLIP, and Splunk.
• Programming experience with REXX and IBM High Level Assembler.
• Experience in RACF administration and security support experience.
• Experience defining and maintaining mainframe hardware configurations using HCD.

• Experience supporting major z/OS subsystems and middleware, including CICS, Db2, IMS, and IBM MQ.
• Experience with BMC and Broadcom mainframe software products.
• Technical writing skills, with the ability to produce clear, accurate, and maintainable documentation

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