Mainframe Developer (COBOL)

Role Overview

Apply your COBOL and mainframe expertise to help improve next-generation AI systems through accurate, real-world technical input. This remote contract role focuses on analyzing legacy applications, documenting their behavior, and creating high-quality materials that support AI training and evaluation. Prior AI experience is not required.

Key Responsibilities

• Analyze, interpret, and advise on existing COBOL codebases for AI training-data creation.
• Document COBOL logic, workflows, and business rules clearly and accurately.
• Evaluate sample code and project scenarios, identifying edge cases, ambiguities, and technical considerations.
• Review and annotate COBOL scripts and pseudocode to support robust machine-learning datasets.
• Develop test cases and scenario outlines that reflect real-world COBOL applications.
• Collaborate with project coordinators and technical specialists through clear written and verbal communication.
• Ensure all submitted materials are technically accurate and complete.

Qualifications

• Deep, demonstrated proficiency in COBOL development across business domains.
• Strong analytical ability to interpret complex legacy systems and explain how they function.
• Ability to produce precise, accessible technical documentation.
• Excellent written and verbal communication skills, with strong attention to detail.
• Familiarity with mainframe environments and related tools.
• Ability to work independently, manage deliverables, and meet project milestones in a remote setting.
• Experience with large-scale migration, integration, or modernization projects is a plus.

Work Terms

• Remote contract engagement.

Compensation

• $90 to $126 per hour.