Software Engineer - Storage Systems (Agent Infra)

The role

The Agent Infra team builds Agent Drive, a distributed filesystem that agent sandboxes mount over FUSE. You will design core features, solve multi-attach correctness, and optimize tail latency for storage systems.

What you will do

• Design and implement core Agent Drive features: metadata replication, volume placement, garbage collection, and FUSE client behavior
• Solve multi-attach correctness: cache coherency, dentry and inode invalidation, write ordering, and crash consistency
• Optimize tail latency on read and write paths
• Build tenant isolation into the storage layer
• Own the storage side of sandbox startup and resume performance
• Build durable block storage for sandboxes
• Build observability into every layer
• Contribute upstream to the open-source storage projects we build on

Required qualifications

• Strong systems programming background in Go, Rust, and/or C/C++
• 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
• Ability to move fast and own a problem end to end on a small team

Nice to have

• Experience with a distributed filesystem or object store such as JuiceFS, CephFS, or S3-compatible storage, or contributions to those projects
• Knowledge of consensus and replication protocols (Raft, leader leases, quorum reads)
• Experience with snapshot, clone, and copy-on-write filesystem features
• Experience operating multi-tenant storage with hard isolation requirements
• Familiarity with Linux performance tooling such as eBPF, io_uring, perf, ftrace, and blktrace

Benefits

• Competitive compensation, including meaningful equity
• 100% coverage of medical, dental, and vision insurance for employee and dependents (U.S. only)
• Flexible PTO policy including company wide Winter Break
• Paid parental leave
• Fertility and family-building stipend through Carrot
• Company-facilitated 401(k) (U.S. only)
• Exposure to a variety of ML startups

About the company

Baseten powers mission-critical inference for AI companies by uniting applied AI research, flexible infrastructure, and seamless developer tooling. The company recently raised a $1.5B Series F.