Cobol Programmer - AI Trainer

Mercor, Inc.
Austin, TX, United States
3 months ago
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Role details

Contract type
Permanent contract
Employment type
Part-time (≤ 32 hours)
Compensation
$166,400.0 - $208,000.0
Working hours
Regular working hours
Languages
English
Job source

Tech stack

Artificial Intelligence Business Logic Customer Information Control System (CICS) COBOL (Programming Language) Code Review IBM DB2 Software Debugging Job Control Language (JCL) Mainframes Data Streaming Virtual Storage Access Methods Z/OS
+1 more
Legacy Systems

Job description

  • 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.

Requirements

Do you have experience in Writing skills?, 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.

Benefits & conditions

4.04.0 out of 5 stars Austin, TX Remote $80 - $100 an hour - Part-time

About the company

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.

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Good distractions

Talks and stories from around this role — technically off-topic, practically not.

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Analyzing COBOL mainframe migration challenges with AI

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How infrastructure evolved from single mainframes to hybrid clouds

Jose Javier Alonso Moya Jose Javier Alonso Moya · World Congress 2024

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Migrating legacy COBOL systems using generative AI tools

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Mainframe performance baseline and distributed computing challenges

Tomasz Woznica Tomasz Woznica · World Congress 2026 Europe

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