> Markdown version of [/jobs/ext/3078050-senior-software-engineer-mainframe-cobol-vsam](https://www.wearedevelopers.com/jobs/ext/3078050-senior-software-engineer-mainframe-cobol-vsam). 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 Software Engineer - Mainframe / COBOL / VSAM - **Company:** American CyberSystems - **Location:** Minneapolis, MN, United States - **Experience:** Expert - **Salary:** $108,160.0 - $118,560.0 - **Contract:** Temporary to permanent - **Skills:** Agile Methodology, Batch Processing, COBOL (Programming Language), Endevor, Job Control Language (JCL), Intrusion Detection Systems, Mainframes, Software Deployment, Virtual Storage Access Methods, Legacy Systems - **Published:** September 25, 2026 - **Apply:** https://public-rest34.bullhornstaffing.com/rest-services/2WXP1S/query/JobBoardPost?where=id=1024938&fields=id,title,publishedCategory(id,name),address(city,state),employmentType,dateLastPublished,publicDescription,isOpen,isPublic,isDeleted ## About the Role * Strong COBOL development experience in a mainframe environment - most critical skill. * Strong understanding of and extensive hands-on experience with VSAM. * Experience maintaining and enhancing legacy, highly customized mainframe applications. * Solid understanding of JCL for batch processing. * Experience with Endevor and other core mainframe technologies. * Experience working in an Agile environment. * Solid coding foundation with the ability to learn and adapt within complex legacy systems. ## Description As a Mainframe Cobol Programmer, you will: * Support and maintain the Data Distributor, NOVA, and SD applications within the Core Deposits team. * Modify existing COBOL programs to meet product and business requirements, including enhancements, fixes, and regulatory updates. * Validate and distribute data to Hogan IDS, including nightly batch processing. * Develop and maintain JCL for batch jobs and production workflows. * Perform testing, validation, and production deployments following change processes. * Participate in Agile ceremonies and collaborate with product and business partners. * Support production issues and contribute to overall application stability. * Mentor and help train junior engineers on Hogan and mainframe best practices.