Mainframe Developer (COBOL)

Role Title: COBOL Developer

Role Type: Contractor

Location: Remote

COBOL Developers to contribute their expertise to a high-impact customer project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Scope of Work

• Analyze, interpret, and provide guidance on existing COBOL codebases for the creation of AI training data.


• Develop clear, accurate documentation of COBOL logic, workflows, and business rules to inform AI-driven systems.


• Evaluate sample code and project scenarios, offering expert feedback and identification of potential edge cases or ambiguities.


• Review and annotate COBOL scripts or pseudo-code, supporting the development of robust machine learning datasets.


• Contribute to designing test cases and scenario outlines that represent real-world COBOL applications.


• Collaborate with project coordinators and other technical experts through effective written and verbal communication.


• Ensure technical accuracy and completeness in all submitted materials to enhance AI learning outcomes.

Preferred Qualifications

• Proven experience and deep proficiency in COBOL development across diverse business domains.


• Strong analytical skills with the ability to decode complex legacy systems and articulate their function.


• Demonstrated capability to produce precise, user-friendly technical documentation.


• Exceptional written and verbal communication skills, with attention to clarity and detail.


• Previous experience with large-scale migration, integration, or modernization projects (a plus).


• Familiarity with mainframe environments and related tooling.


• Ability to work autonomously, manage deliverables, and meet project milestones in a remote setting.