Senior Legacy Systems Engineer (COBOL Modernization)

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📍 Montgomery, Alabama, United StatesFull time

About this role

Provides technical leadership for sustainment, refactoring, coexistence management, and modernization of legacy IMDS/IMDS-MSM components and associated enterprise workflows. This role supports analysis, decomposition, refactoring, and incremental modernization of legacy application capabilities while preserving operational stability, synchronization integrity, maintenance history continuity, and mission-critical sustainment workflows.

The Senior Legacy Systems Engineer evaluates modernization candidates, identifies modernization sequencing risks, supports API modernization, validates coexistence between legacy and modernized components, and assists with migration of tightly coupled legacy workflows into modern architectures where operationally appropriate. This role works closely with the System Architect, Enterprise Integration Lead, Product Owners, DevSecOps Platform Lead, and Functional SMEs to ensure modernization activities do not disrupt maintenance scheduling, discrepancy management, disconnected operations synchronization, personnel qualification tracking, or operational reporting.

The Senior Legacy Systems Engineer also supports technical debt analysis, modernization risk assessments, data integrity validation, and rollback planning during modernization execution.

Must possess DoD Secret Clearance.

Technical Skills

·       COBOL

·       Legacy application sustainment

·       Mainframe/legacy integration

·       Batch processing

·       Data synchronization

·       Legacy modernization techniques

·       API integration

·       SQL/Oracle

Certifications

Preferred:

·       Security+

Education

·       Bachelor’s degree or equivalent experience.

Experience

·       10+ years legacy application support.

·       Experience modernizing legacy enterprise applications.

·       Experience supporting mission-critical operational systems.

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Short Term & Long Term Disability

Frequently Asked Questions

Is the salary disclosed for the Senior Legacy Systems Engineer (COBOL Modernization) position at American Operations Corporation?
The salary for this Senior Legacy Systems Engineer (COBOL Modernization) role at American Operations Corporation is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Legacy Systems Engineer (COBOL Modernization) position at American Operations Corporation located?
This Senior Legacy Systems Engineer (COBOL Modernization) role at American Operations Corporation is based in Montgomery, Alabama, United States. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Legacy Systems Engineer (COBOL Modernization) role at American Operations Corporation full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Legacy Systems Engineer (COBOL Modernization) role at American Operations Corporation.
How do I apply for the Senior Legacy Systems Engineer (COBOL Modernization) position at American Operations Corporation?
Click the "Apply Now" button on this page. You will be redirected to American Operations Corporation's official application portal hosted on workable where you can submit your application directly.
When was the Senior Legacy Systems Engineer (COBOL Modernization) job at American Operations Corporation posted?
This Senior Legacy Systems Engineer (COBOL Modernization) position at American Operations Corporation was posted on Jun 4, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Legacy Systems Engineer (COBOL Modernization)
American Operations Corporation
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