> Markdown version of [/jobs/ext/3829769-infrastructure-engineer-ii](https://www.wearedevelopers.com/jobs/ext/3829769-infrastructure-engineer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Infrastructure Engineer II - **Company:** Bank of America Corporation - **Location:** Chester, UK - **Contract:** Permanent contract - **Skills:** Systems Engineering, Customer Information Control System (CICS), Computer Programming, Data Centers, IBM DB2, Software Debugging, Middleware, IBM WebSphere MQ, Rexx (Programming Language), Job Entry Subsystem 2/3, Mainframes, IBM Resource Access Control Facility, Software Tools, Broadcom, Security Support Provider Interface, Subsystems, System Programming, System Software, Systems Integration, Z/OS, Performance Monitor, Hardware Infrastructure, Splunk - **Published:** October 19, 2026 - **Apply:** https://ghr.wd1.myworkdayjobs.com/lateral-emea/job/Chester/Infrastructure-Engineer-II_26034871-1 ## About the Role * 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 JES2. * 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. Skills that will help: * 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 ## Description * 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.