> Markdown version of [/jobs/ext/4605873-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/4605873-mainframe-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer - **Company:** Robotics Technologies LLC - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Salary:** $149,760.0 - **Contract:** Temporary contract - **Skills:** Application Programming Interfaces (APIs), Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Databases, Data Integrity, Job Control Language (JCL), IBM Information Management System, Mainframes, Performance Tuning, Z/OS, Transaction Processing (Computing) - **Published:** November 6, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=af2f03ce8ae54a36 ## About the Role * 10+ years of mainframe development experience. * Strong proficiency in COBOL programming. * In-depth knowledge of IBM z/OS. * Mandatory hands-on experience with IMS/DB. * Experience with IMS/DC concepts and transaction processing. * Strong knowledge of CICS functionalities and programming interfaces. * Ability to write and manage JCL scripts for batch processing. * Understanding of mainframe data set management and security. * Must be available to work onsite five days a week in Jersey City, NJ. PREFERRED SKILLS: * Banking or financial services domain experience. * Experience supporting enterprise-scale mainframe applications. * Knowledge of mainframe production support and troubleshooting. GOOD TO HAVE: * Exposure to mainframe system administration. * Experience working with large enterprise technology teams. * Familiarity with mainframe application maintenance and performance optimization. ## Description Seeking an experienced Mainframe Developer with 10+ years of hands-on experience in COBOL, IMS/DB, IMS/DC, and CICS. The ideal candidate will have strong expertise in IBM z/OS environments, batch processing, JCL, and mainframe transaction processing. The role requires the ability to develop, maintain, and support enterprise mainframe applications within a banking environment., * Develop, maintain, and enhance mainframe applications using COBOL. * Work with IMS database technologies, including IMS/DB and IMS/DC. * Develop and support CICS-based transaction processing applications. * Write, execute, and maintain JCL scripts for batch processing. * Work in IBM z/OS environments and troubleshoot application issues. * Support mainframe data set management and basic system administration activities. * Ensure application reliability, performance, and data integrity. * Collaborate with development, testing, and production support teams. * Follow established mainframe development standards and operational procedures.