Remote COBOL Mainframe Expert for AI Training Data

YO AI Labs; Seattle (WA); Remote; USD 83,000 - 152,000; Part time

Job summary

YO AI Labs is seeking experienced COBOL Developers for a remote contractor role focused on training and improving AI systems using COBOL and mainframe expertise. You will analyze legacy code, document business logic, and provide precise feedback on complex workflows, ensuring accuracy and completeness.

No AI experience required; deep COBOL and mainframe knowledge is the priority. Remote collaboration and independent delivery are essential for success in this role.

Qualifications

• Proven professional experience as a COBOL Developer or Mainframe Developer.
• Strong proficiency in COBOL programming and legacy application environments.

Responsibilities

• Analyze and interpret existing 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 Development

Legacy Systems

Code Analysis

Technical Documentation

Technical Communication

Remote Collaboration

Problem Solving

Attention to Detail

Business Logic Analysis

Test Case Design

Tools

JCL

DB2

CICS

VSAM

Job description

YO AI Labs is seeking experienced COBOL Developers for a remote contractor role focused on training and improving AI systems using COBOL and mainframe expertise. You will analyze legacy code, document business logic, and provide precise feedback on complex workflows, ensuring accuracy and completeness.

No AI experience required; deep COBOL and mainframe knowledge is the priority. Remote collaboration and independent delivery are essential for success in this role.