> Markdown version of [/jobs/ext/203459-mainframe-sr-developer](https://www.wearedevelopers.com/jobs/ext/203459-mainframe-sr-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 Sr Developer - **Company:** Capgemini - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $130,000.0 - $139,992.0 - **Contract:** Permanent contract - **Skills:** Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Software Debugging, Job Control Language (JCL), Mainframes, Performance Tuning, Sql Optimization, Servicenow - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=97ac2ea2baaaa12e ## About the Role 6 to 8 years of strong hands on experience in COBOL DB2 JCL and CICS Proven expertise in end to end production support complex abend analysis and root cause resolution Deep understanding of zOS architecture DB2 performance tuning advanced SQL and debugging Strong experience working with ServiceNow and leading incident problem management efforts ITIL certification required or strongly preferred Extensive experience in 24/7 production support environments including primary on call ownership Willingness to lead and support afterhours critical production issues Strong financial services insurance domain experience preferred ## Description Lead design development and support of complex mainframe applications Act as SME for production issues driving root cause analysis and permanent fixes Mentor junior developers and provide technical guidance Partner with business architecture QA and infrastructure teams Ensure adherence to client security audit and governance policies Proactively identify stability performance and process improvement opportunities Provide clear communication to senior stakeholders and client leadership ## Related Videos - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Cloud as the new mainframe: why the cloud hype does not reflect the dev reality](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality) - [Applying Agile Principles to Incident Management ](https://www.wearedevelopers.com/videos/101-applying-agile-principles-to-incident-management) - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo) ## Related Articles - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [The 10 C++ programming questions to expect in an interview](https://www.wearedevelopers.com/magazine/50-the-10-c-programming-questions-to-expect-in-an-interview) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025)