Senior Mainframe Systems Programmer – IBM z/OS, CICS, MQ

🕒 September 3

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🖥 Software Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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DNI (Delaware Nation Industries)

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2015

💼 Consulting

🏗️ Construction

📦 Logistics

Consulting • Construction • Logistics

DNI (Delaware Nation Industries) is a wholly-owned tribal organization based in Oklahoma that focuses on leveraging tribal advantages to provide a variety of non-gaming business solutions aimed at benefiting the Delaware Nation. The company offers services in enterprise IT, cabling, lighting, modular construction, and environmental solutions, catering primarily to government agencies and commercial clients. With a mission to empower its members and promote financial independence, DNI prides itself on delivering high-quality services and products across multiple functional areas while maintaining a commitment to safety and excellence.

📋 Description

• Administer, install, configure, upgrade, and maintain IBM z/OS mainframe environments, including CICS Transaction Server, IBM MQ, and related software products • Perform software installations, migrations, upgrades, patching, and implementation activities across multiple mainframe environments • Troubleshoot and resolve system abends, outages, and performance issues using logs, traces, dumps, and monitoring tools • Manage IBM MQ environments, including queue managers, queues, channels, backup processing, and web services administration • Monitor and tune system and middleware performance to ensure availability, reliability, and operational efficiency • Support secure and compliant system operations in accordance with cybersecurity and enterprise security requirements • Develop and execute implementation plans, test plans, recovery plans, and back-out procedures for software and hardware changes • Coordinate change management, incident management, CAB activities, and cross-functional implementation efforts using approved operational processes and tools • Create and maintain technical documentation, standard operating procedures, implementation guides, root cause analysis reports, and status updates • Utilize SMP/E, JCL, TSO/ISPF, REXX, CLIST, COBOL, and related IBM utilities to support administration, automation, and system operations • Support backup, recovery, and disaster recovery planning, testing, and execution • Provide technical guidance, mentoring, training, and customer support to project teams, junior staff, and stakeholders • Collaborate with infrastructure, cybersecurity, application, and operations teams to ensure stable and secure mainframe services

🎯 Requirements

• Active Top Secret Security Clearance • DoD IAT Level II certification required • Minimum of 8 years of experience in mainframe systems programming, administration, or support • Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field, or equivalent combination of experience and training • Strong hands-on experience with IBM z/OS, CICS Transaction Server, and IBM MQ • Experience with software installation, upgrades, patching, maintenance, and migration activities in enterprise mainframe environments • Experience troubleshooting system abends, dumps, traces, and performance issues in production environments • Working knowledge of SMP/E, JCL, TSO/ISPF, REXX, CLIST, and related IBM mainframe utilities