Job Title: Mainframe Developer (SRE) Location: Columbus, OH (Onsite) Job Description:Looking for an experienced Mainframe Developer with SRE mindset to support and enhance reliability of critical systems. The role involves production support, automation, incident management, and performance optimization in a z/OS environment. Key Skills:Strong experience in IBM z/OS Hands-on with CICS, IMS, DB2, MQ Good knowledge of JCL, REXX (or CLIST) Experience in Production Support / Incident Management /