Mainframes Developer Jobs in Louisville, KY (NOW HIRING)

Job Summary:
Nakupuna Companies is seeking a Data Center Mainframe Operator to support the U.S. Army Human Resources Command's data center operations team. The role is responsible for ensuring the availability, integrity, and security of mainframe computing resources, while performing various operational tasks to maintain system stability and support mission-critical functions.
Responsibilities:
• Operate mainframe systems in a secure DoD environment, ensuring continuous system availability.
• Monitor system consoles, JES queues, and automated operations tools to maintain stable production processing.
• Execute batch job scheduling, restarts, reruns, and failure resolution following approved JCL and operational procedures.
• Perform IPLs, system startups, shutdowns, and recovery actions in accordance with TMs, SOPs, and established protocols.
• Manage DASD, tape libraries, printers, and other peripheral devices.
• Respond to system alerts and incidents; perform first‑level troubleshooting and escalate per incident management procedures.
• Maintain accurate logs, shift documentation, and audit‑ready records supporting cybersecurity and configuration management requirements.
• Support COOP and Disaster Recovery exercises and real‑world events.
• Enforce access controls, data handling rules, and OPSEC/IA requirements.
• Coordinate with government, military, and contractor personnel to ensure mission success.
Qualifications:
Required:
• Must pass initial and recurring background investigations.
• Must comply with all DoD physical security, cybersecurity, and OPSEC requirements.
• 2+ years of hands-on experience operating enterprise mainframe systems in a production environment.
• Equivalent education or certifications may be considered in place of experience.
• Familiarity with batch scheduling tools and mainframe operational workflows.
• Experience supporting DoD, classified, or highly regulated environments.
• Ability to work rotating shifts, including nights, weekends, and holidays when mission needs require.
• This position requires a current Secret clearance.
• Must be a U.S. Citizen.
• Ability to perform repetitive motions with the hands, wrists, and fingers.
• Ability to engage in and follow audible communications in emergency situations.
• Ability to sit for prolonged periods at a desk and working on a computer.
Preferred:
• Prior experience supporting DoD, DISA, or service-specific environments (Army, Navy, Air Force, Space Force).
• Knowledge of ITIL-based incident, problem, and change management processes.
• Experience with mainframe automation, monitoring, and console management tools.
• Familiarity with DoD RMF processes and cybersecurity controls.
Company:
Nakupuna Companies provides management consulting services specializing in IT, facilities support, and environmental services. Founded in 2003, the company is headquartered in Honolulu, USA, with a team of 1001-5000 employees. The company is currently Late Stage.