> Markdown version of [/jobs/ext/621135-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/621135-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:** First Soft Solutions - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Distributed Systems, Mainframes, Virtual Storage Access Methods, Integration Tests - **Published:** June 23, 2026 - **Apply:** https://www.careerjet.com/jobad/us18f264759dd242bf15ddb933eef4d9c9 ## About the Role * 7+ years of Mainframe Development experience. * Strong experience with: * COBOL * DB2 * IMS * VSAM * CICS * Exposure to IBM Assembler is a plus. * Experience with batch and online processing systems. * Knowledge of AI-assisted migration or modernization tools is highly preferred. * Strong problem-solving and communication skills ## Description We are looking for an experienced Mainframe Developer with strong COBOL and mainframe technologies expertise. The candidate will help modernize and migrate legacy mainframe applications to distributed platforms using AI-assisted migration tools and modernization frameworks. Key Responsibilities * Analyze and modernize legacy mainframe applications. * Develop and maintain applications using COBOL and mainframe technologies. * Support migration of mainframe systems to distributed environments. * Utilize AI-based tools to accelerate code conversion and modernization. * Work with business teams to gather requirements and design solutions. * Perform unit testing, integration testing, and defect resolution. * Provide production support and troubleshooting when required. ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [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) - [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) - [Are you still programming unit tests or already generating?](https://www.wearedevelopers.com/videos/722-are-you-still-programming-unit-tests-or-already-generating) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [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) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 162: AI careers, MCP, AWS best practices & floppy sweaters](https://www.wearedevelopers.com/magazine/571-dev-digest-162-ai-careers-mcp-aws-best-practices-floppy-sweaters) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)