Cobol Programmer - AI Trainer

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: COBOL Code Reading / Writing Expert
Type: Contract
Compensation: $80–$100/hour
Location: Remote

Role 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.
• Provide high-quality feedback to improve AI model performance on legacy code tasks.

Qualifications

Must-Have

• Strong hands-on experience with COBOL development.
• Ability to read and write COBOL code independently.
• Strong debugging and code review skills.
• Clear written communication in English.

Preferred

• Familiarity with mainframe environments such as IBM z/OS.
• Experience with JCL, VSAM, DB2, CICS, or copybooks.
• Prior experience in banking, insurance, government, or enterprise legacy systems.

Application Process (Takes 20–30 mins to complete)

• Upload resume
• AI interview based on your resume
• Submit form

Resources & Support

• For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
• For any help or support, reach out to: [email protected]

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.