Mainframe Developer

Overview

Hybrid
Depends on Experience
Contract - W2
Contract - 12 Month(s)
50% Travel

Skills

COBOL
CICS
JCL
IBM DB2
Endevor
VSAM
Assembly Language
Java
Mainframe
Agile
SQL
PL/I
Version Control
Microservices
Debugging

Job Details

Job Title: Mainframe Developer

Location: Columbus, OH (Hybrid)

Employment Type: W2 Only

Duration: 12+ Months

Job Summary:
We are looking for an experienced Mainframe Developer to design, develop, and maintain mission-critical applications. The ideal candidate will have strong expertise in COBOL, JCL, CICS, DB2, and IMS, along with experience in modernizing legacy systems.

Key Responsibilities:

  • Develop and maintain COBOL, PL/I, and Assembler programs
  • Design and optimize JCL for batch processing
  • Implement CICS applications with VSAM and DB2 integration
  • Write and optimize DB2 SQL queries and stored procedures
  • Use File-AID for file and DB2 data management
  • Work with ISPF commands and utilities for mainframe operations
  • Support mainframe modernization efforts (migration to Java/Microservices)
  • Collaborate on Enterprise and System Architecture design
  • Troubleshoot and debug mainframe applications
  • Ensure compliance with security and performance standards

Required Skills & Qualifications:

  • 12+ years of hands-on Mainframe development experience
  • Strong expertise in:
    • COBOL, JCL, CICS, DB2, IMS
    • PL/I and Assembler
    • VSAM file handling
  • Experience with:
    • ENDEVOR or similar version control tools
    • File-AID for data management
    • Mainframe-to-Open-System migration (Java/Microservices)
  • Knowledge of:
    • Enterprise and System Architecture
    • Design methodologies
    • ISPF commands and utilities

Nice-to-Have Skills:

  • Experience with Agile methodologies
  • Knowledge of cloud integration
  • Familiarity with DevOps practices for mainframe
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