Remote COBOL Developer - Mainframe & Legacy Expert

YO AI Labs; Los Angeles (CA); Remote; USD 90,000 - 130,000; Part time

Job summary

YO AI Labs is seeking an experienced COBOL Developer for a remote contract role. You will analyze legacy COBOL and mainframe systems, document business logic, and provide expert feedback to AI training datasets.

The ideal candidate brings deep COBOL programming skills and familiarity with JCL, DB2, CICS, and VSAM, and can work independently in a remote team delivering precise technical materials.

Qualifications

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

Responsibilities

• Analyze and interpret COBOL codebases, workflows, and business logic.
• Develop clear documentation of COBOL programs, system processes, and technical requirements.
• Review 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

JCL

DB2

CICS

VSAM

Code Analysis

Technical Documentation

Business Logic Analysis

Test Case Design

Problem Solving

Attention to Detail

Technical Communication

Remote Collaboration

Job description

YO AI Labs is seeking an experienced COBOL Developer for a remote contract role. You will analyze legacy COBOL and mainframe systems, document business logic, and provide expert feedback to AI training datasets.

The ideal candidate brings deep COBOL programming skills and familiarity with JCL, DB2, CICS, and VSAM, and can work independently in a remote team delivering precise technical materials.