**Introduction** At IBM Software, we transform client challenges into solutions. Building the world’s leading AI-powered, cloud-native products that shape the future of business and society. Our legacy of innovation creates endless opportunities for IBMers to learn, grow, and make an impact on a global scale. Working in Software means joining a team fueled by curiosity and collaboration. You’ll work with diverse technologies, partners, and industries to design, develop, and deliver solutions that power digital transformation. With a culture that values innovation, growth, and continuous learning, IBM Software places you at the heart of IBM’s product and technology landscape. Here, you’ll have the tools and opportunities to advance your career while creating software that changes the world. **Your role and responsibilities** As a senior software developer, you will work on the design, implementation, and testing of new features that meet the needs of our clients. You will work across teams to resolve problems as well as deliver potential new enhancements with high quality. We are looking for someone having proficiency with C and Assembler (HLASM), has a strong desire to learn new technologies and is passionate about product quality. Candidates with strong programming, debugging and general problem troubleshooting skills are needed to excel in this position. **Required technical and professional expertise** * Proficiency in C (experience on Z platform preferred). * Familiarity with Assembler (HLASM strongly preferred) and Java. * Understanding of system software concepts, such as operating systems, compilers, and debuggers. * Experience or interest in firmware development, low-level programming, and real-time systems. * Ability to work with bare-metal environments, including memory and hardware interactions. * Strong problem-solving skills and willingness to learn new technologies. **Preferred technical and professional experience** * Prior experience with z/OS, mainframe environments, or similar large-scale systems. * Knowledge of PLX, HLASM, or other assembly languages. * Background in driver development, embedded systems, or real-time programming. 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.