> Markdown version of [/jobs/ext/2155054-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/2155054-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:** ReqRoute View all jobs - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $90,000.0 - $96,665.0 - **Contract:** Temporary to permanent - **Skills:** Agile Methodology, COBOL (Programming Language), Code Review, IBM DB2, Software Debugging, Job Control Language (JCL), IBM Mainframe, Mainframes, Performance Tuning, SAS (Software), Diagnostic Tools, Software Coding - **Published:** August 20, 2026 - **Apply:** https://www.careerjet.com/jobad/us778c72dfd6bf2305c454e68cee7c482d ## About the Role * Strong hands-on experience with COBOL, JCL, DB2, and SAS * Ability to read and analyze SAS programs * Proficiency with mainframe utilities and tools including PANVALET, Fault Analyzer, and File Manager * Solid understanding of batch and online processing in mainframe environments * Experience working on IBM Mainframe z/OS operating systems * Ability to analyze complex systems and troubleshoot issues efficiently * Strong communication and documentation skills, * Experience in mid-scale enterprise environments * Knowledge of performance tuning and optimization for DB2 and SAS applications * Familiarity with Agile or hybrid development methodologies * Exposure to modernization or migration initiatives Operating Environment * Operating System: IBM Mainframe z/OS * Development & Diagnostic Tools: PANVALET, DB2 Platinum, QMF, Fault Analyzer, File Manager * Core Technologies: COBOL, JCL, DB2, SAS ## Description We are seeking an experienced Mainframe Developer to design, develop, maintain, and enhance applications on the IBM Mainframe z/OS platform. The role requires strong expertise in COBOL, JCL, DB2, and SAS, along with hands-on experience using key mainframe utilities and diagnostic tools., * Develop, enhance, and maintain mainframe applications using COBOL, JCL, DB2, and SAS * Analyze business requirements and translate them into efficient technical solutions * Perform code reviews, debugging, and performance tuning using tools such as Fault Analyzer and File Manager * Manage and maintain source code using PANVALET and related utilities * Ensure adherence to coding standards, security guidelines, and best practices ## 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 Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [".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) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges)