COBOL Mainframe Developer - Remote📣 Job Ad

About the Role

YO IT Consulting is seeking a COBOL Mainframe Developer for a full-time contractor position. This remote role is integral to training and evaluating AI models on legacy software engineering workflows, specifically within mainframe-style codebases. The objective is to enhance AI systems' understanding and support capabilities for enterprise legacy code.

This position offers an intellectually engaging opportunity for experienced COBOL engineers to contribute to AI systems focused on software engineering. Responsibilities will include code evaluation and generation, providing feedback to improve AI model performance on legacy code challenges.

Key Responsibilities

• Read, understand, and interpret COBOL programs, copybooks, JCL, and related mainframe code.
• Write clean, correct, and production-quality COBOL code based on technical specifications and requirements.
• Debug COBOL logic to identify and resolve issues within existing programs.
• Clearly explain code behavior, business logic, and data flow to stakeholders.
• Review AI-generated COBOL solutions for accuracy, completeness, and adherence to coding standards.
• Create or evaluate test cases to ensure the correctness of COBOL programs.
• Provide detailed and constructive feedback to improve the performance of AI models on legacy code tasks.

Qualifications and Requirements

• Strong hands-on experience with COBOL development.
• Demonstrated 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 considered a plus.
• Proficiency in debugging and code review processes.
• Clear and effective written communication skills in English.
• Prior experience in banking, insurance, government, or enterprise legacy systems is a plus.
• Experience working on real-world COBOL systems, beyond academic examples.
• Ability to clearly explain legacy code to both technical and non-technical audiences.
• Comfort in evaluating code quality and reasoning through edge cases.
• Experience in maintaining or modernizing large legacy codebases is advantageous.

Technical Skills

• COBOL
• JCL
• VSAM
• DB2
• CICS
• Copybooks
• Debugging
• Code Review
• Communication

Work Context

This is a remote, full-time contractor position with YO IT Consulting. The role is based in Riyadh, Saudi Arabia, and involves working with mainframe-style codebases to support AI model development.