Remote COBOL & Mainframe Expert for AI Training Data

YO AI Labs; New York (NY); Remote; USD 90,000 - 130,000; Full time

Job summary

YO AI Labs is seeking a seasoned COBOL Developer for a remote contractor role. You will analyze COBOL code, document business logic, and provide expert feedback on legacy systems to support AI training data development.

The position emphasizes deep COBOL knowledge, mainframe tech, and strong written communication while enabling independent, remote collaboration on complex migration and modernization tasks.

Qualifications

• Proven experience as COBOL Developer or Mainframe Developer.
• Strong proficiency in COBOL programming and legacy environments.
• Experience with mainframe systems and related technologies.
• Excellent analytical, problem-solving, and communication skills.
• Ability to work independently in a remote environment.

Responsibilities

• Analyze and interpret COBOL codebases, workflows, and business logic.
• Develop clear and accurate documentation of COBOL programs, system processes, and technical requirements.
• Review and evaluate COBOL code, pseudocode, and project scenarios for accuracy and completeness.
• Identify edge cases, ambiguities, potential defects, and areas requiring clarification.
• Annotate COBOL scripts and technical content to support the development of high-quality AI training datasets.
• Design and review test cases and scenarios representing real-world COBOL and mainframe applications.
• Provide expert guidance on legacy system architecture, integrations, and dependencies.
• Collaborate with project coordinators and technical experts through clear written and verbal communication.
• Ensure all submitted technical materials meet high standards of accuracy, consistency, and completeness.
• Support projects involving legacy-system modernization, migration, integration, or transformation where applicable.

Skills

COBOL

Mainframe

Problem Solving

Technical Communication

Remote Collaboration

Attention to Detail

Documentation

Business Logic Analysis

Test Case Design

Tools

JCL

DB2

CICS

VSAM

Job description

YO AI Labs is seeking a seasoned COBOL Developer for a remote contractor role. You will analyze COBOL code, document business logic, and provide expert feedback on legacy systems to support AI training data development.

The position emphasizes deep COBOL knowledge, mainframe tech, and strong written communication while enabling independent, remote collaboration on complex migration and modernization tasks.