Mainframe Developer, COBOL

Elite Virtual Brokerage

Mainframe Developer (COBOL) creating AI training data through analysis of COBOL codebases. Collaborating with technical experts to enhance AI learning outcomes in a remote setting.

Posted 7/29/2026contractRemote • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates deep proficiency in COBOL development, with strong analytical skills to decode complex legacy systems and produce precise technical documentation. Capable of collaborating effectively in remote settings while ensuring technical accuracy and clarity in communication.

Highest-signal resume keywords

COBOL DevelopmentTechnical DocumentationAnalytical SkillsMainframe EnvironmentsCommunication Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

COBOLLegacy System AnalysisTechnical DocumentationTest Case DesignAI Training Data Creation

Soft Skills

Analytical ThinkingAttention to DetailEffective CommunicationAutonomous Work

Tools & Technologies

Mainframe Tools

Industry Keywords

AI-Driven SystemsMigration ProjectsIntegration ProjectsModernization Projects

About the role

Key responsibilities & impact

Analyze, interpret, and provide guidance on existing COBOL codebases for the creation of AI training data.
Develop clear, accurate documentation of COBOL logic, workflows, and business rules to inform AI-driven systems.
Evaluate sample code and project scenarios, offering expert feedback and identification of potential edge cases or ambiguities.
Review and annotate COBOL scripts or pseudo-code, supporting the development of robust machine learning datasets.
Contribute to designing test cases and scenario outlines that represent real-world COBOL applications.
Collaborate with project coordinators and other technical experts through effective written and verbal communication.
Ensure technical accuracy and completeness in all submitted materials to enhance AI learning outcomes.

Requirements

What you’ll need

Proven experience and deep proficiency in COBOL development across diverse business domains.
Strong analytical skills with the ability to decode complex legacy systems and articulate their function.
Demonstrated capability to produce precise, user-friendly technical documentation.
Exceptional written and verbal communication skills, with attention to clarity and detail.
Previous experience with large-scale migration, integration, or modernization projects (a plus).
Familiarity with mainframe environments and related tooling.
Ability to work autonomously, manage deliverables, and meet project milestones in a remote setting.

Benefits

Comp & perks

A very attractive and competitive package is offered