> Markdown version of [/jobs/ext/3074917-senior-z-os-mainframe-systems-programmer](https://www.wearedevelopers.com/jobs/ext/3074917-senior-z-os-mainframe-systems-programmer). 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 Z/Os Mainframe Systems Programmer - **Company:** NTT DATA - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** IBM Parallel Sysplex, Mainframes, Z/OS - **Published:** September 25, 2026 - **Apply:** https://www.buscojobs.com.es/senior-z-os-mainframe-systems-programmer-en-barcelona-ID-373176927 ## About the Role This role is responsible for the installation, upgrade, maintenance, and support of the IBM z/OS operating system and a broad range of ISV products.The ideal candidate will have deep z/OS programming expertise, strong Parallel Sysplex skills, and extensive experience in mission-critical environments such as banking or financial services. #J-*****-Ljbffr ## Description NTT DATA in Barcelona is seeking an experienced z/OS Mainframe Systems Programmer to join our enterprise infrastructure team.This role is responsible for the installation, upgrade, maintenance, and support of the IBM z/OS operating system and a broad range of ISV products.The ideal candidate will have deep z/OS programming expertise, strong Parallel Sysplex skills, and extensive experience in mission-critical environments such as banking or financial services.#J-*****-Ljbffr ## 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) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [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) - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025) - [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) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)