Mainframe Systems Engineer, Senior

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

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Charleston, South Carolina, Charleston, SC, US

30+ days ago Requisition ID: 1251

Imagine One Technology & Management, Ltd. is seeking a Senior Mainframe Systems Engineer, contingent upon award of the associated work. This position will be based in Charleston, SC.

The Senior Mainframe Systems Engineer is responsible for analyzing, planning, designing, and documenting application installation and operations within z/OS-based mainframe Business Information Systems (BIS). This role leads infrastructure planning, application support, infrastructure analysis and assessment, and infrastructure testing and troubleshooting activities supporting enterprise Marine Corps pay and personnel systems.

Key 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 Risk Management Framework (RMF) / MCAAP-aligned engineering activities.
• Develop operational and system-level architecture views.
• Support production control, release management, and mainframe engineering activities as required.

Desired Experience:

• 10+ years engineering and operating z/OS-based mainframe Business Information Systems.
• 5+ years integrating COBOL/CICS applications into z/OS environments.
• 2+ years engineering systems within MCAAP or other Risk Management Framework 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.

Security Requirements:

• Active Secret clearance required.

Benefits:

• Imagine One offers a full package of benefits and competitive salary, excellent group medical, vision, and dentalprograms.
• 401K savings plan
• $4K annual tuition reimbursement ($5K if pursuing master's degree)
• employee training, development, and education programs
• profit sharing
• advancement opportunities
• and much more

ISO 9001:2015, ISO 20000-1:2018, ISO 27001:2022
CMMI Development and Services - Maturity Level 3
CMMC Level 2 (C3PAO)
An Employee-Owned Business