Storage Systems Engineer - FUSE & Distributed Storage

Baseten; San Francisco (CA); On-site; USD 180,000 - 260,000; Full time

Benefits offered by this job

Medical/Dental/Vision coverage for US

Flexible PTO including Winter Break

Parental leave

Fertility and family-building stipend

401(k)

Learning and networking opportunities

Job summary

Baseten in San Francisco is building Agent Drive, the distributed filesystem that powers agent sandboxes mounted over FUSE. This role focuses on core storage features, including metadata replication, volume placement, garbage collection, and crash consistency, with a small, ownership-driven team that ships in weeks rather than years.

Baseten recently acquired Blaxel to bolster sandbox storage. We value experts who understand page cache coherency, replication protocols, and content-addressable

Qualifications

• Strong systems programming background in Go, Rust, and/or C/C++, with comfort reading kernel code.
• Deep understanding of Linux filesystem and storage internals: VFS, page cache, dentry and inode caches, FUSE, the block I/O stack, fsync semantics, and crash consistency.
• Hands-on experience building distributed storage systems, content-addressable storage, or large-scale caching infrastructure.
• Experience profiling I/O, memory, and RPC bottlenecks and optimizing tail latency in production.
• Ability to debug correctness bugs that only show up under concurrency or partial failure.
• You move fast and like owning a problem end to end on a small team.

Responsibilities

• Design and implement core Agent Drive features: metadata replication, volume placement, garbage collection, and FUSE client behavior
• Solve multi-attach correctness: cache coherency across many FUSE mounts of the same drive, dentry and inode invalidation, write ordering, and crash consistency
• Optimize tail latency on read and write paths, including page cache strategy, writeback, prefetch, and metadata RPC batching
• Build tenant isolation into the storage layer, including quota enforcement, blast-radius containment, and noisy-neighbor mitigation
• Own the storage side of sandbox startup and resume performance
• Build durable block storage for sandboxes alongside other Baseten storage teams
• Build observability into every layer, drive storage incidents end to end, and turn each one into a permanent fix
• Contribute upstream to the open-source storage projects we build on

Skills

Go

Rust

C/C++

Linux filesystem

FUSE

Distributed storage

Profiling

Concurrency debugging

Tools

Kernel code familiarity

Job description

Baseten in San Francisco is building Agent Drive, the distributed filesystem that powers agent sandboxes mounted over FUSE. This role focuses on core storage features, including metadata replication, volume placement, garbage collection, and crash consistency, with a small, ownership-driven team that ships in weeks rather than years.

Baseten recently acquired Blaxel to bolster sandbox storage. We value experts who understand page cache coherency, replication protocols, and content-addressable