IO Virtualization developer

Job description

**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. You’ll 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. **About AIX** AIX is IBM’s industry-leading UNIX operating system built on open standards, delivering a scalable, secure, and highly reliable infrastructure platform for enterprise customers. It is designed to support mission-critical workloads with exceptional performance, availability, and robustness. **Your Role And Responsibilities** As an I/O virtualization developer, you will be responsible for: - Designing, developing, and supporting new features, performance enhancements, and hardware enablement for AIX and related products. - Collaborating with cross-functional teams to build high-performance, scalable, and reliable I/O virtualization solutions - Developing and maintaining storage protocol stacks and device drivers for Fibre Channel, FCoE, NVMe-oF (FC/TCP), SAS, SATA, ATA, SCSI, iSCSI, and Multipath I/O. - Working closely with senior technical leaders and customers to translate business requirements into robust, enterprise grade technical solutions. **Required Technical And Professional Expertise** - 3 to 8 years of experience in platform software development, preferably in Storage technologies and IO area. - Proficiency in C programming with solid understanding of algorithms and data structures. - Well-versed with Unix/Linux internals with exposure to multithreading, synchronization mechanisms, memory management, DMA, I/O subsystems, kernel programming and device driver development. - Proficiency in debugging and troubleshooting at the kernel and device driver level using tools like DBX, GDB or similar debuggers. - Strong analytical, problem-solving, and interpersonal skills. - Ability to collaborate effectively with global, cross-functional engineering teams. **Preferred Technical And Professional Experience** - Prior operating system experience - UNIX (HP UX, AIX) or Linux - Working level understanding of storage protocol stacks and device drivers for enterprise operating systems. - Familiarity with multipath I/O, zoning, LUN management concepts, storage snapshots and replication concepts.