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Senior COBOL Developer

Title: Senior COBOL Developer
Location: Remote (must be based in US, on EST)
Type: 12 Month Contract
Pay Range: $50-80/hr W2
**No third parties, please note sponsorship is not provided for this position**

We are seeking a Senior COBOL Developer to play a critical role in the modernization of a complex legacy platforms. This role will serve as a senior technical authority responsible for guiding the reverse-engineering of complex legacy code-base.

You will focus on the deep analysis & validation of the legacy code, and assist in leveraging AI-enabled tooling to accelerate documentation, business rule extraction, and system redesign.

This is not maintenance work, this is structured modernization and reengineering.

Key Responsibilities:

  • Conduct deep technical assessments of large, complex COBOL codebases (100,000+ lines of code).
  • Analyze and document module dependencies across COBOL, SQL, and JCL components.
  • Validate AI-generated system assessments and ensure accuracy of business logic interpretation.
  • Extract and document business rules using AI-assisted documentation tools.
  • Evaluate legacy artifacts and determine what should be reengineered vs. retired.
  • Lead the migration of priority reporting assets (approx. 50 reports identified for modernization out of 500 total).
  • Support aggregation and restructuring of legacy data for improved accessibility and downstream consumption.
  • Contribute to transitioning COBOL workloads to modern toolsets and cloud-enabled environments.
  • Assess whether modernization efforts are targeting the correct architectural components.

Skilled Needed:

  • 8+ years of hands-on COBOL development experience.
  • Strong expertise in:
    • COBOL
    • SQL
    • JCL
  • Experience working within highly complex, interdependent legacy systems (100,000+ lines of code).
  • Proven ability to analyze and untangle module dependencies across large applications.
  • Experience modernizing legacy systems or migrating to new platforms/toolsets.
  • Comfort working with AI-based coding tools, code generators, or cloud code environments.
  • Strong documentation skills, particularly around business rule extraction.

To be considered for the role please apply online or email an updated Resume to William Barclay at Oliver James – [email protected]