Sr. Staff Engineer, Lustre

DataDirect Networks; North Carolina; Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Highly Competitive Vacation Plans

Paid Holidays

Bonus Programs

Tuition Reimbursement

Employee Referral Program

Excellent Medical, Dental and Vision

Paid Leave Programs

Anniversary and Recognition Awards

Job summary

DataDirect Networks seeks a Staff Engineer with 10+ years in distributed storage and Linux‑based systems engineering to lead LustreFS design, debugging and performance work. The role emphasizes hands‑on development, subsystem ownership, and collaboration with QE, support and release teams.

The ideal candidate will drive complex investigations, contribute to reliability, observability, and AI‑assisted tooling, and mentor engineers while advancing large‑scale Lustre deployments in a

Qualifications

• 10+ years of experience in systems software, distributed systems, storage, Linux kernel or filesystem engineering.
• Strong experience in LustreFS development, support or performance engineering with depth in at least one major subsystem.
• Strong C programming and Linux systems debugging skills.
• Working knowledge of Linux kernel internals, filesystem semantics, networking and performance analysis.
• Experience with LNet and/or high‑performance transports such as RDMA, InfiniBand, RoCE or TCP‑based storage networking.
• Ability to debug and resolve issues spanning multiple layers including client, server, network and backend storage.
• Strong collaboration skills and the ability to work across functions in a fast‑moving engineering environment.

Responsibilities

• Hands‑on development and debugging of LustreFS defects, performance issues and subsystem enhancements.
• Customer‑facing and scale‑related issue investigation across llite, metadata, object storage, LNet and transport layers.
• Collaborative design and implementation of reliability, observability and serviceability improvements.
• Reviewing and validating fixes through targeted tests, failure injection, log analysis and performance characterization.
• Using AI‑assisted workflows to accelerate triage, debug loops, code understanding and documentation quality.
• Contributing to team redundancy by strengthening documentation, code review quality and subsystem knowledge sharing.

Skills

LustreFS

C programming

Linux debugging

Distributed systems

Performance analysis

AI-assisted debugging

Tools

LNet

RDMA / InfiniBand

Job description

We are on our way to being the first company to power 1 MILLION GPUs and want world‑class talent to join our amazing team!

The world is moving faster than ever, and yet, it will never move this slowly again. We are at the forefront of an incredible technological revolution but, at its core, it is fueled by incredible people. People like you.

1,000 Global Employees

11kHappy Customers

16International Offices

We’re Looking for the Best and Brightest

We are the world’s leading data intelligence platform that reliably accelerates massive datasets for actionable real‑time insights. Join our team to help the best and brightest minds tackle the world’s biggest challenges in business, science, medicine, academia and government.

Do What Can’t be Done

For the past 20 years, our team has kept us at the forefront of storage technology and has provided the foundation for enabling researchers to push the limits of “what can be done.”
These innovations take research and discovery to the next level, enabling them to discover cures to disease, observe global warming patterns, model innovative automotive and aerospace designs, discover new sources of energy, make communities safer, and accelerate business results across a wide variety of industries.

DDN Helps Build Your Future, Too

At DDN, we understand our customers’ diverse needs. Whether you’re a data scientist, IT professional, executive, or researcher, our solutions empower you with cutting‑edge technology and unparalleled support.

Highly Competitive Vacation Plans

Paid Holidays

Bonus Programs

Tuition Reimbursement

Employee Referral Program

Excellent Medical, Dental and Vision Benefits

Paid Leave Programs

Anniversary and Recognition Awards

Employment Type

Full time

Location Type

Remote

We are seeking a Staff Engineer with 10+ years of experience in distributed storage and Linux‑based systems engineering. This is a hands‑on senior technical role focused on design, debugging, performance, and operational excellence across LustreFS and adjacent stack components. The ideal candidate brings strong expertise in one or more Lustre subsystems, can independently drive complex investigations, and collaborates effectively across engineering, QE, support and release teams. Engineers who are comfortable using AI to accelerate triage, debugging, code comprehension and new feature design will be especially valuable.

Key Responsibilities

Design, develop and debug LustreFS features, fixes and enhancements across relevant subsystems such as llite, MDS/MDT, OSS/OST, LDLM and LNet.

Investigate customer and scale‑related defects, drive root‑cause analysis and implement high‑quality fixes with strong attention to correctness and maintainability.

Contribute to performance tuning, failure analysis and reliability improvements for large‑scale Lustre deployments.

Participate actively in code reviews, design reviews and subsystem discussions, bringing rigor to testing and operational readiness.

Work closely with QE and support to reproduce issues, improve diagnostic data quality and increase coverage for high‑risk failure scenarios.

Help document subsystem behavior, debugging approaches, known failure patterns and operational best practices.

Use AI‑assisted tools where appropriate to speed up issue triage, summarize logs, improve code understanding and capture reusable lessons learned.

Required Qualifications

10+ years of experience in systems software, distributed systems, storage, Linux kernel or filesystem engineering.

Strong experience in LustreFS development, support or performance engineering with depth in at least one major subsystem.

Strong C programming and Linux systems debugging skills.

Working knowledge of Linux kernel internals, filesystem semantics, networking and performance analysis.

Experience with LNet and/or high‑performance transports such as RDMA, InfiniBand, RoCE or TCP‑based storage networking.

Ability to debug and resolve issues spanning multiple layers including client, server, network and backend storage.

Strong collaboration skills and the ability to work across functions in a fast‑moving engineering environment.

Preferred Skills

Experience in HPC, AI infrastructure or large‑scale parallel storage environments.

Exposure to metadata‑heavy and throughput‑heavy workload characterization and tuning.

Familiarity with ZFS, ldiskfs, NVMe‑backed storage and related observability / performance tooling.

Experience creating test plans, reproducer frameworks, runbooks or diagnostic automation.

Comfort using AI tools to accelerate debugging, code reviews, triage, documentation and early‑stage design ideation.

Experience mentoring junior engineers or leading focused technical efforts within a subsystem.

What You Will Work On

Hands‑on development and debugging of LustreFS defects, performance issues and subsystem enhancements.

Customer‑facing and scale‑related issue investigation across llite, metadata, object storage, LNet and transport layers.

Collaborative design and implementation of reliability, observability and serviceability improvements.

Reviewing and validating fixes through targeted tests, failure injection, log analysis and performance characterization.

Using AI‑assisted workflows to accelerate triage, debug loops, code understanding and documentation quality.

Contributing to team redundancy by strengthening documentation, code review quality and subsystem knowledge sharing.

Why This Role Matters

This role is central to building durable engineering redundancy in LustreFS: expanding deep subsystem ownership, reducing concentration risk, and accelerating next‑generation delivery through strong engineering fundamentals and AI‑enabled execution.

We pride ourselves on our commitment to delivering tangible and consistent results.

Regional Director of Sales, Middle East and Africa

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