1 month ago
Remote, United StatesSenior / Staff+
Responsibilities
- Contribute to Lustre architecture and lead implementation of features across core storage subsystems.
- Write production-grade C code across the Lustre kernel module, user-space utilities, and supporting libraries.
- Own feature development from design and implementation through testing, performance tuning, and upstream submission.
- Improve scalability, metadata performance, I/O paths, and integration with interconnects and storage fabrics in multi-petabyte environments.
- Modernize Lustre internals through kernel API updates, locking improvements, RDMA enhancements, and cloud/container capabilities.
- Prototype emerging storage technologies including NVMe-oF and CXL for potential Lustre integration.
- Strengthen regression, stress, and performance validation using IOR, mdtest, fio, and Lustre test tooling.
- Perform code-level performance analysis with Lustre tracing tools, perf, lockstat, and kernel profilers.
- Collaborate with Principal Engineers, hardware teams, and application owners on workload-driven improvements.
- Mentor developers and contribute design documents, technical guides, and engineering reviews.
Requirements
- At least 7 years of progressive, hands-on Lustre software development experience.
- A strong record of meaningful Lustre code contributions in production or open-source environments.
- Demonstrated success designing, implementing, and upstreaming Lustre features included in major releases.
- Deep knowledge of Lustre internals, including MDS/OSS, LDLM locking and recovery, journaling, DNE, DoM, FLD, layout, quota, and security.
- Expert-level C programming and strong Linux kernel development experience.
- Strong knowledge of distributed systems, parallel file systems, and high-performance I/O.
- Experience with Lustre development, build, and debugging tools such as lctl, llstat, strace, perf, and kernel tracers.
- Python and/or Bash skills for tooling and automation.
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field.
- Clear written and verbal communication skills.
- Preferred experience includes 7+ years in HPC or storage software development, visible Lustre open-source contributions, cloud Lustre deployments, adjacent systems such as Ceph or DAOS, RDMA, NVMe-oF, CXL, computational storage, AI/ML I/O workloads, and public technical presentations or publications.
