Senior Mainframe Engineer — z/OS, COBOL/CICS Specialist

Imagine One Technology & Management, Ltd.; Charleston (SC); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical coverage

Vision coverage

Dental coverage

401K savings plan

Tuition reimbursement

Employee training

Profit sharing

Advancement opportunities

Job summary

Imagine One Technology & Management, Ltd. seeks a Senior Mainframe Systems Engineer to lead z/OS‑based mainframe environments and support enterprise Marine Corps pay and personnel systems. The role requires extensive COBOL/CICS integration experience and RMF/MCAAP familiarity.

The successful candidate will analyze and document installations, support architecture development, and collaborate on risk management activities while maintaining strong operational readiness on Charleston, SC systems.

Qualifications

• 10+ years engineering and operating z/OS-based mainframe BIS.
• 5+ years integrating COBOL/CICS applications into z/OS environments.
• 2+ years engineering systems within MCAAP or other RMF implementations.
• Experience in concept exploration, requirements definition, systems design, integration testing, and evaluation within complex enterprise environments.
• Experience developing operational and system-level architecture views.

Responsibilities

• Lead engineering and operational support of z/OS-based mainframe environments.
• Analyze, plan, design, and document application installations and infrastructure changes.
• Integrate COBOL/CICS applications into z/OS environments.
• Perform infrastructure analysis, assessment, testing, and troubleshooting.
• Support performance tuning and security configuration analysis.
• Provide technical input to architecture documentation, SIAs, MOAs, and RFAs.
• Support RMF / MCAAP-aligned engineering activities.
• Develop operational and system-level architecture views.
• Support production control, release management, and mainframe engineering activities as required.

Skills

Mainframe engineering

z/OS

Cobol/CICS integration

RMF/MCAAP

Systems architecture

Job description

Imagine One Technology & Management, Ltd. seeks a Senior Mainframe Systems Engineer to lead z/OS‑based mainframe environments and support enterprise Marine Corps pay and personnel systems. The role requires extensive COBOL/CICS integration experience and RMF/MCAAP familiarity.

The successful candidate will analyze and document installations, support architecture development, and collaborate on risk management activities while maintaining strong operational readiness on Charleston, SC systems.