> Markdown version of [/jobs/ext/3849657-senior-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/3849657-senior-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). --- # Senior Mainframe Developer - **Company:** Mphasis - **Location:** Wilmington, DE, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, Customer Information Control System (CICS), COBOL (Programming Language), Continuous Integration, IBM DB2, Software Debugging, Job Control Language (JCL), IBM Mainframe, IBM WebSphere MQ, Mainframes, Software Engineering, Virtual Storage Access Methods, Maintaining Code - **Published:** October 21, 2026 - **Apply:** https://www.dice.com/job-detail/ac3a3b80-4c72-409f-8d76-75b1412fc817 ## About the Role Mandatory Skills - CICS, DB2, IBM MQ, VSAM, JCL, CA7, Changeman and IBM Mainframe Utilities along with problem solving skills when there is an issue (Production support), * Strong Analytical and debugging skills and experience in developing, debugging, and maintaining code in a large corporate environment * Overall knowledge of the Software Development Life Cycle, solid understanding of agile methodologies such as CI/CD, Application Resiliency, and Security * Ability to work in large, collaborative teams to achieve organizational goals, and passionate about building an innovative culture * On-call support for all environment including weekends on rotation basis and to participate in production issues if any arise during non on call support * Troubleshooting and resolving application issues in a timely and efficient manner * Knowledge in Banking and Cards will be best Good to have: IMS ## Description * Solid Hands-on experience in IBM-Z/OS COBOL, CICS, DB2, IMS, IBM MQ, VSAM, JCL, CA7, Changeman and IBM Mainframe Utilities