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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Technology System Specialist III - **Company:** Epitec, Inc. - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $110,240.0 - $118,560.0 - **Contract:** Permanent contract - **Skills:** Customer Information Control System (CICS), CLIST, Extract Transform Load (ETL), IBM DB2, Distributed Systems, Middleware, Job Control Language (JCL), IBM Mainframe, IBM WebSphere MQ, Rexx (Programming Language), IBM Information Management System, Interoperability, Mainframes, Performance Tuning, IBM Resource Access Control Facility, TCP/IP, Virtualization Technology, Z/OS, Tso/ispf, Transport Layer Security, Cloud Platform System, Software Troubleshooting, Storage Technologies, Information Technology, Ibm Z/vm, Performance Monitor, Control M - **Published:** June 6, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=ac553243523c1fda ## About the Role Do you have experience in Virtualization projects?, * 8-12+ years of hands-on IBM Mainframe experience in large enterprise environments * Strong expertise with: + z/OS (multiple versions and upgrades) + z/VM + RACF and/or ACF2 + DB2 for z/OS, CICS, IMS, MQ + Mainframe storage, networking (including SNA), and TLS encryption * Experience with SMF, performance monitoring, and capacity management * Advanced skills in JCL, REXX/CLIST, and TSO/ISPF * Strong troubleshooting, root cause analysis, and documentation skills * Experience working in regulated environments (financial services, insurance, or government preferred), * Experience with mainframe modernization initiatives and hybrid integrations * Familiarity with CDC, ETL tools, and distributed system integrations * Exposure to enterprise schedulers and middleware ecosystems, * Bachelor's degree in Computer Science, Engineering, or equivalent experience, * Hybrid work model preferred in Chicago, IL * Open to remote candidates based on experience and fit * Extension beyond initial contract is possible ## Description The ideal candidate will play a key role in ensuring stability, performance, and compatibility across evolving mainframe environments while supporting critical, highly regulated systems., z/OS Platform Modernization & Upgrade Engineering * Lead engineering efforts across multiple concurrent z/OS versions, including interoperability and upgrade paths * Perform pre-upgrade assessments, dependency validation, and post-upgrade stabilization and tuning * Ensure system readiness for modernization initiatives Full-Stack Mainframe Engineering * Provide deep system-level expertise across the IBM Z ecosystem, including: + DB2 for z/OS (configuration, performance, version interactions) + CICS TS (workload tuning, system behavior, TLS enablement) + IMS DB/DC (platform interaction and tuning) + IBM MQ for z/OS (queue manager architecture, performance tuning, TLS channels) * Analyze dependencies across subsystems and distributed platforms * Support enterprise schedulers (e.g., Control-M, CA-7) and ISV tools Infrastructure Engineering (Storage, Networking & Virtualization) * Analyze mainframe storage architecture, layout, and recovery considerations * Provide insight into networking environments including SNA, VTAM, and TCP/IP * Design solutions within z/VM and virtualized environments * Identify infrastructure constraints impacting performance and modernization Security Engineering * Support RACF and ACF2 security configurations, access controls, and compliance requirements * Ensure adherence to enterprise security policies and regulatory standards * Implement best practices for encryption and data protection Performance, Monitoring & Capacity Planning * Utilize SMF, RMF, and system metrics to analyze performance and identify bottlenecks * Support capacity planning and long-term system forecasting * Recommend tuning strategies for optimal performance, cost efficiency, and scalability Automation & Operational Efficiency * Identify and implement automation opportunities using JCL, REXX, CLIST, and TSO/ISPF * Reduce manual effort through standardization and self-healing processes Collaboration & Leadership * Partner with application teams, middleware teams, security, risk, and external vendors * Provide technical leadership and guidance on mainframe engineering initiatives ## Related Videos - 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