Senior Legacy Systems Engineer (COBOL Modernization)

American Operations Corporation; Montgomery (AL); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health Plan

Retirement Plan

Life Insurance

Paid Time Off

Disability

Job summary

American Operations Corporation seeks a Senior Legacy Systems Engineer to lead modernization of legacy IMDS/IMDS-MSM components and sustainment workflows. You will analyze, decompose, and refactor legacy capabilities while preserving stability and synchronization across enterprise processes.

You will evaluate modernization candidates, manage sequencing risks, and support API modernization, ensuring safe coexistence between legacy and modernized components. DoD Secret Clearance is required.

Qualifications

• 10+ years of legacy application support.
• Experience modernizing legacy enterprise applications.
• Experience supporting mission-critical operational systems.

Responsibilities

• Evaluate modernization candidates and sequencing risks.
• Support API modernization and coexistence between legacy and modernized components.
• Assist migration of tightly coupled legacy workflows into modern architectures.
• Collaborate with System Architect, Enterprise Integration Lead, and Product Owners to avoid disruptions to maintenance scheduling and operations.

Skills

COBOL

Legacy application sustainment

Mainframe/legacy integration

Batch processing

Data synchronization

Legacy modernization techniques

API integration

SQL/Oracle

Education

Bachelor’s degree or equivalent experience

Job description

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