> Markdown version of [/jobs/ext/2502315-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/2502315-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:** TekLeaders, Inc - **Location:** Chicago, IL, United States - **Contract:** Permanent contract - **Skills:** Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Job Control Language (JCL), Mainframes, Systems Development Life Cycle - **Published:** August 31, 2026 - **Apply:** https://www.dice.com/job-detail/8c7433d5-5df3-4bd0-8868-3bf932d79af4 ## About the Role * Proficiency in COBOL, DB2, CICS, and JCL. * Extensive knowledge in FIS Core Banking Systems (RM, GN, IM, AM, SC). * 12-15 yrs experience * Ability to shift priorities quickly based on business needs. * Strong collaborative skills with various stakeholders. * Clear and concise presentation skills for findings and analyses. * Proven experience in troubleshooting and problem resolution in relevant technologies. * Excellent detail orientation and organizational skills. * Direct and oversee technical teams throughout project lifecycles. * Utilize expert-level knowledge of FIS Core Banking Systems for system management. * Develop and implement COBOL/CICS/DB2/JCL solutions via SDLC methodology. * Analyze and resolve incidents as part of a proactive ownership approach. ## 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) - [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) - [The Human API: Designing Organizations for Judgment, Not Just Execution](https://www.wearedevelopers.com/videos/100213-the-human-api-designing-organizations-for-judgment-not-just-execution) - [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 - [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) - [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) - [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) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)