Senior/Staff Fuse Developer

Job description

## **Why this role is compelling** At DDN, you will work on infrastructure challenges that sit at the core of modern high-performance systems: - Building and optimizing FUSE-based file system technologies - Working across Linux kernel file systems and user-space infrastructure layers - Designing high-performance infrastructure for distributed storage environments - Improving how object storage systems behave under real production workloads - Working with RDMA networking principles and high-speed data movement - Solving performance bottlenecks across networking, storage, and I/O pathways - Developing systems-level infrastructure in C and C++ - Building platforms that support AI, HPC, and large-scale data-intensive workloads Your work will directly influence how large-scale infrastructure platforms perform in real-world production environments — not just in theory. ## **What you’ll do** - Design, build, and optimize FUSE-based infrastructure and storage components - Develop and improve Linux file system integrations across kernel and user-space layers - Work on distributed storage and object storage infrastructure systems - Improve scalability, resiliency, and performance across storage platforms - Optimize networking and data movement using RDMA principles - Diagnose bottlenecks across file systems, networking, memory, and I/O stacks - Develop infrastructure tooling and platform capabilities in C and C++ - Work closely with systems, storage, and platform engineering teams on deeply technical infrastructure challenges - Help shape next-generation infrastructure platforms for AI and high-performance environments ## **What we’re looking for** - Strong hands-on experience developing with FUSE and Linux file systems - Deep understanding of Linux kernel file system architecture - Strong programming skills in C and C++ - Strong understanding of POSIX file system principles - Experience with object storage systems and distributed infrastructure - Familiarity with RDMA networking principles and high-speed networking technologies - Experience working close to kernel-space and user-space I/O paths - Strong systems mindset with the ability to debug complex infrastructure and performance issues - Experience building or optimizing infrastructure platforms in production environments ## **You’ll thrive here if** - You enjoy low-level systems and infrastructure engineering - You care deeply about performance, scale, and reliability - You like solving technical problems that most engineers avoid because they are too deep or performance-sensitive - You enjoy understanding how storage and networking behave under pressure - You prefer working close to the metal instead of purely abstracted application layers - You want to build infrastructure that directly powers mission-critical environments ## **This role is probably not for you if** - Your background is primarily application-layer or general backend development - You have limited experience with Linux internals, file systems, or infrastructure engineering - You prefer higher-level platform abstraction over systems-level development - You have not worked on performance-sensitive distributed systems - You want a coordination-heavy role rather than deep technical ownership