Mainframe Developer

Overview

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

Skills

CICS
COBOL
BMC Control-M
Assembly Language
Database
IBM DB2
IBM Mainframe Utility Programs
JCL
Java
Mainframe
RACF
VSAM
z/OS
Microservices

Job Details

Job Title: Senior Mainframe Developer

Location: Columbus, OH (Hybrid)

Employment Type: W2 Only

Duration: 12+ Months

Job Summary

We are looking for an experienced Senior Mainframe Developer to design, develop, and maintain mission-critical mainframe applications. The ideal candidate will have deep expertise in COBOL, JCL, CICS, DB2, and VSAM, along with a strong understanding of legacy system modernization. You will collaborate with cross-functional teams to enhance, optimize, and migrate mainframe systems while ensuring high performance and reliability.

Key Responsibilities

  • Develop, test, debug, and maintain COBOL programs, JCL (Job Control Language), CICS, and DB2 databases.
  • Analyze business requirements and translate them into efficient mainframe solutions.
  • Optimize and refactor legacy code for performance and maintainability.
  • Work with VSAM, IMS DB, and other mainframe file systems.
  • Troubleshoot and resolve production issues, providing Level 3 support.
  • Collaborate with teams on mainframe modernization (e.g., migration to cloud, microservices).
  • Conduct code reviews and mentor junior developers.
  • Ensure compliance with security, audit, and regulatory standards.
  • Document technical specifications, workflows, and system changes.

Required Skills & Qualifications

  • 13+ years of hands-on experience in mainframe development (COBOL, JCL, CICS, DB2).
  • Strong knowledge of VSAM, IMS DB, and mainframe utilities (SORT, SYNCSORT, IDCAMS).
  • Experience with DB2 SQL, SPUFI, QMF, and stored procedures.
  • Familiarity with z/OS, TSO/ISPF, SDSF, and debugging tools (Xpediter, Abend-AID).
  • Understanding of SOAP/REST services (CICS Web Services, API integration) is a plus.
  • Knowledge of Agile/Waterfall methodologies and DevOps practices for mainframe (CI/CD).
  • Strong analytical, problem-solving, and communication skills.

Preferred Skills

  • Experience with mainframe modernization (microservices, cloud migration, Java integration).
  • Exposure to Python, REXX, or Assembler for scripting/automation.
  • Knowledge of mainframe security (RACF, ACF2) and scheduling tools (CA-7, Control-M).

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.