The Avian Consulting LLC
The Avian Consulting LLCVerified Source

Mainframe Developer with AI/GenAI in Berkeley Heights, NJ

60K
Onsite · New York, New York
Posted August 12, 2026
contract

Overview

You will own the build and maintenance of mainframe batch and online applications for a financial services client in Berkeley Heights, NJ, supporting daily production volumes of millions of transactions. You will collaborate with a tight team of COBOL, JCL, and CICS developers, integrating AI/GenAI tools to modernize legacy code. You'll transform business requirements into secure, high-performance solutions, and troubleshoot production incidents as the first line of defense. This contract role offers the chance to drive real change in a legacy environment, blending big iron with modern AI.

What You'll Do7

  • 1Design and code COBOL and CICS programs to implement new business features and integrations within the first 90 days.
  • 2Develop and maintain JCL and VSAM file structures to optimize batch processing and ensure data integrity.
  • 3Integrate AI/GenAI capabilities into mainframe workflows to automate code analysis and reduce manual effort.
  • 4Debug and resolve production abends in CICS and batch environments, restoring service within SLA.
  • 5Migrate legacy COBOL applications to run on modern z/OS with Db2 and MQ for improved throughput.
  • 6Collaborate with business analysts to translate requirements into technical specifications for mainframe modules.
  • 7Write and execute unit tests using CA InterTest and Xpediter to ensure defect-free deployments.

Requirements7

  • 15+ years programming in COBOL with strong JCL and VSAM skills.
  • 23+ years hands-on experience with CICS transactions and TSO/ISPF.
  • 32+ years working with Db2 and embedded SQL in mainframe environments.
  • 41+ year exposure to AI/GenAI models applied to code generation or modernization.
  • 5Bachelor's degree in computer science or related field.
  • 6Experience with Endevor for change management and CA7 for batch scheduling.
  • 7Strong debugging skills using Abend-AID and InterTest.

Salary Insight

$60k per year

Location

Typeonsite
LocationNew York, New York

Required Skills

IBM MainframeBatch ProcessingOnline Transaction Processing
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