Mainframe Platform & Infrastructure Engineer
Core
Managing, supporting, and optimizing mission-critical corporate mainframe environments to ensure high availability, performance, security, and operational stability.
Role type
Mainframe Platform & Infrastructure Engineer
Builds
Reliable system operations, secure connectivity, and efficient automated processes for business-critical functions.
Domain
IT Infrastructure / Mainframe Systems
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
z/OS, z/VM, Linux on Z administration; Mainframe networking (VTAM); Batch processing; Scripting (REXX, JCL, Shell); Incident response and RCA; Performance analysis (SMF/RMF); Patch management and compliance; Mainframe monitoring tools (OMEGAMON, BMC, CA OPS/MVS); TSO/ISPF, JES2/3, SDSF.
Preferred skills
RACF security; ITIL processes; Large-scale regulated environments; End-to-end infrastructure support (hardware, OS, network, middleware).
Technologies
IBM Z (z/OS, z/VM, Linux on Z), Tandem, Unisys, VTAM, REXX, JCL, Shell, OMEGAMON, BMC MainView, CA OPS/MVS, TSO/ISPF, JES2/3, SDSF.
Responsibilities
Monitor and maintain mainframe environment availability, performance, and stability; Administer and optimize z/OS, z/VM, and Linux on Z systems; Manage mainframe network connectivity and latency; Support and enhance automation processes including script creation; Plan and execute critical batch processing operations; Perform incident response, RCA, and problem resolution; Manage application patching cycles and compliance activities; Conduct performance and capacity analysis to recommend optimizations; Maintain technical documentation and operational procedures.
Seniority
Mid-level (3-5+ years experience)