> Markdown version of [/jobs/ext/247982-z-os-systems-programmer](https://www.wearedevelopers.com/jobs/ext/247982-z-os-systems-programmer). 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). --- # z/OS Systems programmer - **Company:** INTRINSIC RESOLUTION LLC - **Location:** Annapolis, MD, United States - **Experience:** Experienced - **Salary:** $150,000.0 - $170,000.0 - **Contract:** Permanent contract - **Skills:** Customer Information Control System (CICS), CLIST, Information Systems, Continuous Availability, IBM DB2, Disaster Recovery, IBM System/360, Job Control Language (JCL), IBM Mainframe, Rexx (Programming Language), Job Entry Subsystem 2/3, Job Scheduling, Mainframes, Network Configuration and Change Management, IBM Resource Access Control Facility, Ansible, Runbook, Subsystems, TCP/IP, Software Vulnerability Management, Z/OS, System Availability, Reliability of Systems, SC Clearance, Information Technology, Cloud Integration - **Published:** May 21, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=99db8226914f3719 ## About the Role Do you have experience in Technical writing within technology?, Do you have a Bachelor's degree?, * Active Secret Clearance (required prior to start) * 8+ years of hands-on experience as a z/OS Systems Programmer * Deep expertise in z/OS internals, JES2/JES3, WLM, and SMP/E * Demonstrated experience with one or more subsystems: CICS, DB2, IMS, or MQ * Proficiency in REXX, JCL, and mainframe utilities * Knowledge of TCP/IP, VTAM, and network configuration on z/OS * Experience with disaster recovery, backup/restore, and high availability environments * Strong diagnostic, analytical, and problem-solving skills * Excellent written and verbal communication and documentation abilities * Ability to operate effectively in 24x7 mission-critical environments * Collaborative team player with a strong focus on quality and system reliability * Adaptability to emerging mainframe and automation technologies * U.S. Citizenship required - no exceptions * Native or bilingual English proficiency PREFERRED QUALIFICATIONS * Experience with z/OSMF, Ansible for z/OS, and enterprise automation frameworks * Exposure to security tools such as zSecure and advanced RACF administration * Mainframe experience in cloud, MFaaS (Mainframe as a Service), or managed hosting environments * Familiarity with federal compliance frameworks including NIST, STIG, and RMF * Bachelor's degree in Computer Science, Information Systems, or equivalent practical experience, * z/OS: 8 years (Required) * JES2/JES3, WLM and SMP/E: 5 years (Required) * * Proficiency in REXX, JCL, and mainframe utilities: 4 years (Required) * TCP/IP, VTAM, and network configuration on z/OS: 4 years (Preferred) ## Description Intrinsic Resolution is seeking an experienced and security-cleared z/OS Systems Programmer for an on-site assignment in Annapolis, MD. This is a mission-critical role supporting the maintenance, configuration, and optimization of an IBM mainframe environment for a federal client. The ideal candidate is an Annapolis-area resident with an Active Secret Clearance and 8+ years of deep, hands-on experience with z/OS internals, subsystem administration, and enterprise-scale mainframe operations. This position ensures the stability, security, and performance of mainframe systems across production, test, and development environments in a highly regulated, 24x7 operational context. You will serve as a subject matter expert and Tier III escalation point, driving solutions to complex technical challenges and contributing to modernization and automation initiatives., z/OS Installation & Maintenance * Install, configure, and maintain z/OS and related IBM system software * Manage SMP/E processes, including PTF and RSU installations * Maintain PARMLIB/PROCLIB configurations and plan and execute IPLs Subsystem Administration * Support and tune subsystems including JES2/JES3, CICS, DB2, MQ, and IMS * Troubleshoot subsystem issues to ensure performance and continuous availability Performance & Capacity Management * Perform workload analysis using RMF and SMF tools * Tune WLM policies and provide recommendations to optimize CPU, memory, I/O, and storage utilization Storage & I/O Configuration * Collaborate with storage teams on SMS/HSM and DASD management * Support IODF/HCD updates and validate TS7700/VTL replication Security & Compliance * Support RACF rules, digital certificates, and access control administration * Assist with STIG compliance and vulnerability remediation activities * Ensure system configurations align with applicable regulatory and security standards Automation & Operations * Develop automation scripts using REXX, CLIST, and SA/Ops frameworks * Support job scheduling and integrate with monitoring and alerting tools Incident & Change Management * Provide Tier III support for escalated mainframe incidents * Conduct root cause analysis (RCA) for system and subsystem failures * Participate in change management processes and disaster recovery testing Documentation & Collaboration * Develop and maintain technical documentation, runbooks, and SOPs * Collaborate with cross-functional teams including security, storage, networking, and application teams * Contribute to mainframe modernization and cloud integration initiatives ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Debunking the Top 10 Myths about Web 3](https://www.wearedevelopers.com/videos/634-debunking-the-top-10-myths-about-web-3) - [Grappling With Clunky Old Software? Start by Understanding What’s Inside!](https://www.wearedevelopers.com/videos/1189-grappling-with-clunky-old-software-start-by-understanding-what-s-inside) ## Related Articles - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 10 C++ programming questions to expect in an interview](https://www.wearedevelopers.com/magazine/50-the-10-c-programming-questions-to-expect-in-an-interview) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [What Should be Included in Your Programming Resume to Highlight Your Skills](https://www.wearedevelopers.com/magazine/142-what-should-be-included-in-your-programming-resume-to-highlight-your-skills) - [Quick guide: How to write a Software Developer CV](https://www.wearedevelopers.com/magazine/37-quick-guide-how-to-write-a-software-developer-cv)