Technologist, Firmware Engineering

Company Description Sandisk understands how people and businesses consume data and we relentlessly innovate to deliver solutions that enable today s needs and tomorrow s next big ideas With a rich history of groundbreaking innovations in Flash and advanced memory technologies our solutions have become the beating heart of the digital world we re living in and that we have the power to shape Sandisk meets people and businesses at the intersection of their aspirations and the moment enabling them to keep moving and pushing possibility forward We do this through the balance of our powerhouse manufacturing capabilities and our industry-leading portfolio of products that are recognized globally for innovation performance and quality Sandisk has two facilities recognized by the World Economic Forum as part of the Global Lighthouse Network for advanced 4IR innovations These facilities were also recognized as Sustainability Lighthouses for breakthroughs in efficient operations With our global reach we ensure the global supply chain has access to the Flash memory it needs to keep our world moving forward We re looking for a highly skilled Technologist Software Engineering with over 10 years of experience to lead the host-side software stack for our high-bandwidth flash controller In this role you ll design and implement a high-performance PCIe kernel-mode driver for both Linux and Windows along with a corresponding user-space library This is a senior hands-on role that requires a deep understanding of low-level systems and high-speed communication Key Responsibilities Multi-OS PCIe Driver Development You ll architect and implement high-performance PCIe drivers for both the Linux and Windows operating systems This includes handling device enumeration interrupt management and resource allocation Custom Protocol Design Design and implement a custom NVMe-like protocol that operates over PCIe MMIO You ll be responsible for the entire host-side implementation including Doorbell Registers Design and implement the mechanism for host software to signal the device by ringing doorbells to submit commands Command Queues Manage command submission and completion queues in memory Interrupt Handling Develop the interrupt service routines ISRs to handle device-generated interrupts and notify the host of command completions and events DMA Engine Control Orchestrate the DMA engine to move data efficiently between the host and device without CPU intervention Memory Management Architect the software for accessing the device s SRAM and DRAM over the PCIe BAR Base Address Register space ensuring optimal performance and cache coherency ONNX Runtime Integration Collaborate closely with the team responsible for the ONNX runtime s execution provider to ensure a seamless and high-performance integration Debugging Optimization Debug complex system-level issues across the user-space kernel-mode and hardware interfaces on both Windows and Linux You ll be responsible for profiling and optimizing the entire data path to maximize performance Qualifications Experience 10 years in system software development Kernel-Mode Expertise Extensive experience designing and developing kernel-mode drivers for both Linux and Windows Protocol Knowledge Deep understanding of high-speed I O protocols like PCIe and the NVMe specification Experience with the concepts of submission and completion queues doorbells and DMA is a must Low-Level Proficiency Mastery of C C and a deep understanding of low-level system architecture including MMIO and virtual memory Cross-OS Development Proven ability to manage and maintain a codebase for multiple operating systems Problem-Solving Exceptional debugging and analytical skills with a track record of solving the most challenging system-level problems Education Bachelor s or Master s degree in Computer Science Electrical Engineering or a related field Additional Information Sandisk thrives on the power and potential of diversity As a global company we believe the most effective way to embrace the diversity of our customers and communities is to mirror it from within We believe the fusion of various perspectives results in the best outcomes for our employees our company our customers and the world around us We are committed to an inclusive environment where every individual can thrive through a sense of belonging respect and contribution Sandisk is committed to offering opportunities to applicants with disabilities and ensuring all candidates can successfully navigate our careers website and our hiring process Please contact us at to advise us of your accommodation request In your email please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying