Job Description

As a COBOL Code Reading / Writing Expert, you will leverage your extensive experience in COBOL development to read, understand, debug, and write production-quality COBOL code. This role focuses on tasks that contribute to training and evaluating AI models on legacy software engineering workflows, particularly within mainframe-style codebases. Key Responsibilities

• Read and interpret COBOL programs, copybooks, JCL, and related mainframe code.
• Write clean, correct COBOL code based on technical requirements.
• Debug COBOL logic and identify issues in existing programs.
• Explain code behavior, business logic, and data flow clearly.
• Review AI-generated COBOL solutions for correctness, completeness, and style.
• Create or evaluate test cases for COBOL programs.
• Provide high-quality feedback to improve AI model performance on legacy code tasks.

• Strong hands-on experience with COBOL development.
• Ability to read and write COBOL code independently.
• Familiarity with mainframe environments such as IBM z/OS is preferred.
• Experience with JCL, VSAM, DB2, CICS, or copybooks is a plus.
• Strong debugging and code review skills.
• Clear written communication in English.
• Prior experience in banking, insurance, government, or enterprise legacy systems is a plus.

• Has worked on real-world COBOL systems, not just academic examples.
• Can explain legacy code clearly to both technical and non-technical audiences.
• Is comfortable evaluating code quality and reasoning through edge cases.
• Has experience maintaining or modernizing large legacy codebases.

• Contribute to cutting-edge AI systems focused on software engineering.
• Help models better understand and support legacy enterprise code.
• Work on intellectually engaging code evaluation and generation tasks.
• Flexible opportunity for experienced COBOL engineers.

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