Senior/Staff Fuse Developer

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

• 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