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# Mainframe Developer

- **Company:** IRESH TECHNOLOGIES LLC
- **Location:** Dallas, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Unit Testing, Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Databases, IBM DB2, Software Debugging, Endevor, Entry Sequenced Data Set, Job Control Language (JCL), Mainframes, Online Transaction Processing, Performance Tuning, Systems Development Life Cycle, Software Deployment, SQL Stored Procedures, SQL Databases, Virtual Storage Access Methods, Z/OS, Tso/ispf, Database Optimization, Mainframe Programming, Integration Tests, Information Technology, Control M
- **Published:** November 13, 2026
- **Apply:** https://www.dice.com/job-detail/50e119e4-2895-4957-a0b7-b30fae99bfd0

## About the Role

COBOL
Strong hands-on experience
JCL
Job creation, execution, troubleshooting
DB2
SQL queries, joins, performance tuning
CICS
Online transaction processing
VSAM
KSDS, ESDS, RRDS
Mainframe Utilities
SORT, IDCAMS, IEBGENER, IEBCOPY
TSO/ISPF
Hands-on experience
Debugging
Abend analysis and resolution
Scheduling Tools
Control-M / CA7
Version Control
Endevor / Changeman
Preferred Skills

 * Experience with IBM z/OS environments.
 * Knowledge of DB2 stored procedures and performance tuning.
 * Experience with file handling and batch processing.
 * Knowledge of production support and incident management.
 * Exposure to mainframe modernization or migration projects.
 * Basic understanding of Agile methodologies and SDLC., * Bachelor's degree in Computer Science, Information Technology, or a related field.
 * 5-6 years of professional experience in Mainframe Development.
 * Strong analytical, problem-solving, and communication skills.

## Description

We are looking for an experienced Mainframe Developer with 5-6 years of hands-on experience in designing, developing, maintaining, and supporting mainframe applications. The ideal candidate should have strong expertise in COBOL, JCL, DB2, CICS, and VSAM, along with experience in batch processing, online transaction processing, debugging, and production support., * Design, develop, maintain, and enhance mainframe applications using COBOL.

 * Develop, modify, and execute JCL procedures for batch processing.
 * Work with DB2 databases, including SQL queries, stored procedures, and database optimization.
 * Develop and maintain CICS-based online transaction processing applications.
 * Work with VSAM datasets, including KSDS, ESDS, and RRDS.
 * Analyze business requirements and translate them into technical specifications.
 * Perform unit testing, integration testing, debugging, and code reviews.
 * Troubleshoot application issues and provide production support.
 * Monitor batch jobs, analyze job failures, and resolve abends.
 * Collaborate with business analysts, QA teams, and other developers throughout the SDLC.
 * Prepare technical documentation and support application deployment.