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# Mainframe Developer

- **Company:** Robotics Technologies LLC
- **Location:** Edison, NJ, United States
- **Contract:** Temporary contract
- **Skills:** Agile Methodology, Application Performance Management, 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), IBM Mainframe, Job Scheduling, Mainframes, Online Transaction Processing, Release Management, Standard Sql, SQL Stored Procedures, SQL Databases, System Testing, Virtual Storage Access Methods, Z/OS, Tso/ispf, Enterprise Software Applications, Database Optimization, File-aid, Git, Integration Tests
- **Published:** November 6, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=cb26af6efbcb9f1c

## About the Role

* IBM Mainframe / z/OS
 * COBOL / COBOL II
 * JCL (Job Control Language)
 * DB2 and SQL
 * CICS
 * VSAM
 * TSO / ISPF
 * Mainframe Utilities (SORT, IDCAMS, IEBGENER)
 * Abend-AID and Fault Analyzer
 * Endevor / Changeman
 * File-AID
 * Mainframe batch processing
 * Production Support and Debugging

## Description

* Design, develop, enhance, and maintain enterprise applications using IBM Mainframe technologies.
 * Develop and maintain COBOL programs to support complex business requirements.
 * Create, modify, and execute JCL scripts for batch processing and job scheduling.
 * Work with DB2 databases, including SQL queries, stored procedures, and database performance tuning.
 * Develop and maintain CICS online transactions and screen processing.
 * Work with VSAM datasets, including KSDS, ESDS, and RRDS.
 * Analyze existing legacy applications and implement system enhancements.
 * Perform batch processing, job monitoring, scheduling, and troubleshooting.
 * Develop and maintain production support solutions for critical mainframe applications.
 * Identify and resolve application defects, abends, and performance issues.
 * Perform code reviews, unit testing, integration testing, and system testing.
 * Work on mainframe application modernization and legacy system migration initiatives.
 * Collaborate with business analysts, QA teams, architects, and cross-functional development teams.
 * Optimize COBOL programs and DB2 queries for improved application performance.
 * Manage source code using Endevor, Changeman, or Git.
 * Support application deployments, release management, and production implementation.
 * Prepare technical documentation and participate in Agile development activities.