Demo

Mainframe Developer

Alkaeus
Jersey, NJ Contractor
POSTED ON 5/19/2026
AVAILABLE BEFORE 6/18/2026

Senior Mainframe Engineer (COBOL/CICS/DB2)

Must Have Skills:
-COBOL, CICS, DB2, JCL
- Oracle and SQL
- AWS
- REST APIs
- Jira
- Domain: Brokerage, Corporate Actions, Trade Settlement (nice to have)

Role Summary

This role focuses on the ongoing maintenance and support of core mainframe applications. You will be responsible for managing complex legacy logic, researching system behaviors, and ensuring the stability of brokerage platforms. While the primary focus is on mainframe technologies, a foundational understanding of cloud environments is required to support long-term modernization efforts. You are expected to independently review designs, ask critical questions, and challenge technical approaches to ensure optimal system performance.

Core Responsibilities

  • Application Maintenance: Maintain and optimize existing mainframe applications, focusing on COBOL, CICS (online and batch), and JCL environments.
  • Logic & Event Analysis: Research and review existing mainframe logic to determine how events behave and document findings for technical stakeholders.
  • Database Management: Manage data and execute complex queries using DB2 and SQL.
  • Independent Research: Independently analyze system behaviors and conduct thorough design reviews to identify potential improvements or risks.
  • Collaborative Development: Partner closely with developers to refine technical stories and requirements within an Agile environment. Ability to understand API driven cloud applications and collaborate with modernization teams.
  • Debugging & Troubleshooting: Perform end-to-end analysis and debugging of production issues, including the ability to look deeply into system logs.
  • AI Integration: Use Copilot and other AI-assisted tools to facilitate code research, analysis, and maintenance tasks.

Salary : $60 - $65

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