> Markdown version of [/jobs/ext/4364017-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/4364017-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:** GN Resources Inc. - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $124,800.0 - **Contract:** Temporary contract - **Skills:** Application Performance Management, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Databases, Continuous Integration, IBM DB2, Database Queries, Software Debugging, Endevor, Job Control Language (JCL), IBM WebSphere MQ, Mainframes, Microsoft Visual Studio, Online Transaction Processing, Performance Tuning, Scrum Methodology, Software Deployment, Software Engineering, Virtual Storage Access Methods, GitHub Copilot, Integration Tests, Software Version Control - **Published:** October 12, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=b1fb66ab686b11fa ## About the Role We are seeking an experienced Senior Mainframe Developer with 10+ years of hands-on experience in mainframe application development, maintenance, and support. The ideal candidate will have strong technical expertise in mainframe technologies, experience in healthcare claims processing, and the ability to work effectively across multiple Agile Scrum teams in a fast-paced environment., * Minimum 10+ years of Mainframe development experience. * Hands-on experience with COBOL, CICS, DB2, JCL, VSAM, IBM MQ, and Endevor. * Experience working with healthcare claims processing systems. * Strong knowledge of batch and online transaction processing. * Experience in application development, debugging, performance tuning, and production support. * Strong SQL skills and experience working with DB2 databases. * Ability to work independently and collaboratively in a fast-paced Agile environment. * Excellent analytical, problem-solving, and communication skills. * Ability to support multiple Scrum teams and deliver high-quality solutions within timelines. Preferred Qualifications * Experience using Visual Studio Code (VS Code) and GitHub Copilot. * Familiarity with modern mainframe development practices and tools. * Experience working in large-scale enterprise environments. * Understanding of Agile/Scrum methodologies and CI/CD practices. ## Description * Design, develop, enhance, test, and maintain mainframe applications. * Develop and support applications using COBOL, CICS, DB2, JCL, VSAM, and IBM MQ. * Work on healthcare claims processing applications and related business functions. * Analyze business requirements and translate them into technical solutions. * Troubleshoot and resolve complex application and production issues. * Participate in code reviews, unit testing, integration testing, and production deployments. * Use Endevor for source code management and application deployment. * Collaborate with cross-functional teams, including business analysts, developers, testers, and technical leads. * Work across multiple Agile Scrum teams while managing competing priorities and deadlines. * Ensure application performance, reliability, and adherence to development standards.