Home › Companies › 9dee4cd7 0ebc 4589 B912 3bc26e52e1f3 19000101 000001 › Mainframe Application Engineer, Senior
Mainframe Application Engineer, Senior
9dee4cd7 0ebc 4589 B912 3bc26e52e1f3 19000101 000001 · Charleston, South Carolina, Charleston, SC, US, Charleston, SC; Indianapolis, Indiana; Kansas City, Missouri · Active · ADP Workforce Now Recruiting
Job facts
| Field | Value |
|---|---|
| Company | 9dee4cd7 0ebc 4589 B912 3bc26e52e1f3 19000101 000001 |
| Title | Mainframe Application Engineer, Senior |
| Normalized title | - |
| Department / team | - |
| Location | Charleston, SC, United States |
| Work model | - |
| Employment type | - |
| Salary | - |
| Status | active |
| ATS provider | ADP Workforce Now Recruiting |
| Posted / first seen | 2026-05-20 / 2026-05-31 |
| Changed / last seen | 2026-06-06 / 2026-06-06 |
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| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from 9dee4cd7 0ebc 4589 B912 3bc26e52e1f3 19000101 000001. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through ADP Workforce Now Recruiting. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in Charleston. | Open |
| Lifecycle events | Open, update, close, and reopen events for this posting. | Open |
| Original posting | Canonical source or apply URL captured from the ATS. | Open |
Linked records
| Company | 9dee4cd7 0ebc 4589 B912 3bc26e52e1f3 19000101 000001 |
| Source | 758c51a7-d6a2-4a7c-aa0b-7be6508b5d41 |
| ATS provider | ADP Workforce Now Recruiting |
Description
Imagine One Technology & Management, Ltd. is seeking a Senior Mainframe Application Engineer , contingent upon award of the associated work. This position will be based in Charleston, SC .
The Senior Mainframe Application Engineer is responsible for analyzing, planning, designing, and documenting changes to mainframe software applications written in COBOL that execute in batch or online CICS environments within a z/OS-based Business Information System (BIS). The engineer formulates or updates BIS architectures and assists mainframe software sustainment teams with implementation and testing of system changes supporting Marine Corps enterprise pay and personnel systems.
Key Responsibilities:
Analyze, design, and document updates to COBOL-based mainframe applications. Implement changes to batch and CICS-based applications within z/OS environments. Formulate and update Business Information System architectures. Support implementation, integration, and testing of application changes. Engineer enterprise-scale pay and personnel business rule logic updates. Support RMF/MCAAP-aligned engineering activities. Develop operational and system-level architecture views. Collaborate with sustainment and production control teams to support releases. Desired Experience:
6+ years engineering enterprise-scale mainframe software applications. 6+ years implementing and updating DoD pay and personnel business rule logic. 4+ years engineering systems within MCAAP or other Risk Management Framework implementations. Experience developing operational and system-level architecture views. Minimum Certifications:
IAT Level II baseline certification required. Security Requirements:
U.S. Citizen. Active Secret clearance required. Imagine One offers a full package of benefits and competitive salary, excellent group medical, vision, and dental programs. 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
EEO/Vets/Disabled
Full job record
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| Source ID | 758c51a7-d6a2-4a7c-aa0b-7be6508b5d41 |
| Board ID | 758c51a7-d6a2-4a7c-aa0b-7be6508b5d41 |
| Provider | adp_workforcenow |
| Provider Job Key | 578980 |
| Title | Mainframe Application Engineer, Senior |
| Normalized Title | — |
| Status | active |
| Active | yes |
| Location Text | Charleston, South Carolina, Charleston, SC, US, Charleston, SC; Indianapolis, Indiana; Kansas City, Missouri |
| Department | — |
| Team | — |
| Employment Type | — |
| Workplace Type | — |
| Remote Policy | — |
| Country | United States |
| Region | SC |
| City | Charleston |
| Salary Raw | — |
| Salary Min | — |
| Salary Max | — |
| Salary Currency | — |
| Salary Period | — |
| Source URL | https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=9dee4cd7-0ebc-4589-b912-3bc26e52e1f3&ccId=19000101_000001&lang=en_US&type=JS&jobId=578980&jwId=9201030572594_1 |
| Apply URL | https://workforcenow.adp.com/mascsr/default/mdf/recruitment/recruitment.html?cid=9dee4cd7-0ebc-4589-b912-3bc26e52e1f3&ccId=19000101_000001&lang=en_US&type=JS&jobId=578980&jwId=9201030572594_1 |
| First Seen At | 2026-05-31 18:38:10Z |
| Last Seen At | 2026-06-06 12:02:55Z |
| Last Checked At | 2026-06-06 12:02:55Z |
| Last Changed At | 2026-06-06 12:02:55Z |
| Inactive At | — |
| Source Posted At | 2026-05-20 12:21:00Z |
| Source Updated At | — |
| Raw Payload Uri | s3://job-postings-prod-raw-590183727216/raw/provider=adp_workforcenow/board=9dee4cd7-0ebc-4589-b912-3bc26e52e1f3|19000101_000001/date=2026-06-06/2026-06-06T12-02-54-510Z-f91466b7ef83406fcee75e275b6cbb6285731103c2d66387e68d68022b114e24.json |
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"requisitionDescription": "<div><div><div><p data-pasted=\"true\">Imagine One Technology & Management, Ltd. is seeking a <strong>Senior Mainframe Application Engineer</strong>, contingent upon award of the associated work. This position will be based in <strong>Charleston, SC</strong>.</p><p>The Senior Mainframe Application Engineer is responsible for analyzing, planning, designing, and documenting changes to mainframe software applications written in COBOL that execute in batch or online CICS environments within a z/OS-based Business Information System (BIS). The engineer formulates or updates BIS architectures and assists mainframe software sustainment teams with implementation and testing of system changes supporting Marine Corps enterprise pay and personnel systems.</p><p><strong>Key Responsibilities:</strong></p><ul><li>Analyze, design, and document updates to COBOL-based mainframe applications.</li><li>Implement changes to batch and CICS-based applications within z/OS environments.</li><li>Formulate and update Business Information System architectures.</li><li>Support implementation, integration, and testing of application changes.</li><li>Engineer enterprise-scale pay and personnel business rule logic updates.</li><li>Support RMF/MCAAP-aligned engineering activities.</li><li>Develop operational and system-level architecture views.</li><li>Collaborate with sustainment and production control teams to support releases.</li></ul><p><strong>Desired Experience: </strong></p><ul><li>6+ years engineering enterprise-scale mainframe software applications.</li><li>6+ years implementing and updating DoD pay and personnel business rule logic.</li><li>4+ years engineering systems within MCAAP or other Risk Management Framework implementations.</li><li>Experience developing operational and system-level architecture views.</li></ul><p><strong>Minimum Certifications: </strong></p><ul><li>IAT Level II baseline certification required.</li></ul><p><strong>Security Requirements: </strong></p><ul><li>U.S. Citizen.</li><li>Active Secret clearance required.</li></ul><p style='margin-right:0in;margin-left:0in;font-size:16px;font-family:\"Aptos\",sans-serif;margin-top:0in;margin-bottom:8.0pt;font-size:11.0pt;' data-pasted=\"true\">Imagine One offers a full package of benefits and competitive salary, excellent group medical, vision, and dental programs. 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!</p><p style='margin-right:0in;margin-left:0in;font-size:16px;font-family:\"Aptos\",sans-serif;margin-top:0in;margin-bottom:8.0pt;font-size:11.0pt;'><strong><em><span style='font-family:\"Times New Roman\";color:#CD5937;'>ISO 9001:2015, ISO 20000-1:2018, ISO 27001:2022</span></em></strong><br><strong><em><span style='font-family:\"Times New Roman\";color:#CD5937;'>CMMI Development and Services - Maturity Level 3</span></em></strong><br><strong><em><span style='font-family:\"Times New Roman\";color:#CD5937;'>CMMC Level 2 (C3PAO)</span></em></strong><br><strong><em><span style='font-family:\"Times New Roman\";color:#CD5937;'>An Employee-Owned Business</span></em></strong></p><p style='margin-right:0in;margin-left:0in;font-size:16px;font-family:\"Aptos\",sans-serif;margin-top:0in;margin-bottom:8.0pt;font-size:11.0pt;'><strong><span style='font-family:\"Times New Roman\";'>EEO/Vets/Disabled</span></strong></p></div></div></div>\n",
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