> Markdown version of [/jobs/ext/3139121-senior-z-os-mainframe-systems-programmer](https://www.wearedevelopers.com/jobs/ext/3139121-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:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Computer Programming, IBM Parallel Sysplex, Mainframes, Z/OS - **Published:** September 29, 2026 - **Apply:** https://www.buscojobs.com.es/senior-z-os-mainframe-systems-programmer-en-madrid-ID-373199667 ## About the Role 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 - [Unlocking the Power of the Mainframe: Developing modern applications on z/OS](https://www.wearedevelopers.com/videos/764-unlocking-the-power-of-the-mainframe-developing-modern-applications-on-z-os) - [Photonic Computing: Programming a New Class of AI Accelerators (incl. Live Coding)](https://www.wearedevelopers.com/videos/100196-photonic-computing-programming-a-new-class-of-ai-accelerators-incl-live-coding) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Writing a full-text search engine in TypeScript](https://www.wearedevelopers.com/videos/504-writing-a-full-text-search-engine-in-typescript) - [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) ## Related Articles - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025) - [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) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023)