Low-level Senior Software Engineer (Xet Storage)

• Roles at Hugging Face are very fluid and dynamic — we’re looking for someone who is comfortable taking on different challenges that evolve over time
• This role sits on the team, the group responsible for the storage system behind all of Hugging Face
• Today we store over 200PB (and growing rapidly!) of the world’s most important ML & AI assets
• Xet is the underlying storage architecture for the entire Hugging Face platform and community — from the largest model repositories to the datasets and Spaces that millions of people build on every day
• In this role, you’ll work across two closely connected surfaces
• You’ll contribute to , our open-source project written in Rust that powers — the Python library underpinning the Hugging Face Hub client and the wider ecosystem of open-source tools the community relies on
• And you’ll design, build, and operate meaningful and challenging features in the Xet Storage backend, contributing to the broader Infrastructure organization at Hugging Face
• We’re a small team building and operating incredible things at enormous scale, in a high-trust, low-process, async, and remote environment — and we lean heavily on the latest AI tools to move fast
• If you love writing low-level, high-performance code and are energized by the challenge of large-scale, scalable services, this is the team for you
• This usually means proven experience building and operating production systems software, but we consider every applicant on an individual basis

Benefits

• Flexible Work Environment
• Health Insurance
• Unlimited PTO
• Equity
• Growth, Training, & Conferences
• Generous Parental Leave- 8+ years building and scaling distributed systems, storage, or networking infrastructure
• A track record of working independently in a high-trust, low-process environment — you’re comfortable with ambiguity and take ownership end to end
• Comfort operating in a fast-moving, async, and fully remote environment
• Proficiency in a low-level systems language, with Rust strongly preferred (we also work in Python, Typescript, Go, and C++ across the stack)
• A passion for building simple, robust, and scalable systems relied on by engineering and science teams around the world
• Experience designing efficient, high-performance, fault-tolerant data storage and retrieval systems
• Experience operating production systems — monitoring, alerting, and distributed debugging and recovery
• Familiarity with git internals, cloud infrastructure (AWS, Azure, GCP, Kubernetes), databases (relational and non-relational), or networking
• If you’re interested in joining us, but don’t tick every box above, we still encourage you to apply! We’re building a diverse team whose skills, experiences, and backgrounds complement one another. We’re happy to consider where you might be able to make the biggest impact