Introduction At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high-resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability. Our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. Youu2019ll work with diverse technologies and colleagues worldwide to deliver resilient, future-ready solutions that power innovation. With continuous learning, career growth, and a supportive culture, IBM provides the opportunities to build expertise and shape the infrastructure that drives progress. Your role and responsibilities As a Back-End Developer for IBM Z, you will design, develop, unit test, and deliver offerings for IBM Z using agile practices and DevOps tooling. You will work in a collaborative environment to understand requirements, design, code, debug, and test creative solutions to client problems and requirements. Your primary responsibilities will include: Develop and Deliver Offerings: Design, develop, unit test, and deliver high-quality offerings for IBM Z, such as z/OS, zTPF, zVM, and zVSE, using agile practices and DevOps tooling. Collaborative Problem-Solving: Work collaboratively to understand client requirements, design, code, debug, and test creative solutions to client problems and requirements. Ensure Quality and Resiliency: Ensure world-class quality and resiliency in solutions, supporting strategic imperatives including artificial intelligence and cloud. Program in Various Languages: Program in languages such as HLASM/Assembler, Java, C/C++ to design and create z/OS applications, work with z/OS subsystems, and mainframe storage solutions and database technologies. In more detail youu00b4ll be a developer in System Z I/O Configuration Management. Responsible for z/OS HCD, a product with 35 years of history. Your responsibilities will be maintenance and development support, as well as extension of the existing code base supporting our next machine generations. Communication, global cross-team collaboration, development, test, support and documentation for efficiency and quality improvements to our product. Required technical and professional expertise Exposure to Agile Practices: Experience working with agile practices and DevOps tooling to design, develop, and deliver software offerings. Programming Skills: Exposure to programming languages such as HLASM/Assembler, Java, C/C++, PL/1, PL/X for developing z/OS applications and working with z/OS subsystems. Mainframe Technologies: Experience working with IBM Z offerings such as z/OS, zTPF, zVM, and zVSE and database technologies, including IMS and DB2. Collaborative Development: Exposure to collaborative development environments, working with cross-functional teams to understand requirements and design solutions. Unit Testing and Delivery: Experience with unit testing and delivering high-quality software offerings for IBM Z, such as z/OS, zTPF, zVM, and zVSE. Excellent communication skills in German & English. Preferred technical and professional experience Mainframe Security Knowledge: Exposure to z/OS security concepts, including RACF, SSL, SSO, and Multi-Factor Authentication, to design and implement secure solutions. z/OS Subsystems Familiarity: Experience working with z/OS subsystems, such as CICS and IMS, to develop and deliver high-quality offerings. Cloud and AI Understanding: Familiarity with artificial intelligence and cloud technologies can help in developing innovative solutions that align with strategic imperatives. IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.