Software Engineer — Storage

Software Engineer — Storage

Company: Anza

Anza is the core engineering team behind Solana, developing Agave — the network’s primary and most widely run validator client. The team builds and ships Solana protocol software, including major upgrades like Alpenglow that improved consensus and finality.

Responsibilities:

- Design, implement, and optimize AccountsDB storage paths: account file layout, account index, and caching layers.
- Reduce memory and disk footprint to keep validator hardware requirements manageable.
- Improve background services: flushing, cleaning, shrinking, and purging to lower write amplification.
- Optimize snapshot generation, loading, and index creation to speed validator startup and catch-up.
- Ensure correctness across forks, rooting, and crash recovery to preserve network integrity.
- Build and run comprehensive tests: stress tests, fault injection, and performance benchmarks.
- Collaborate with runtime, block production, and core protocol teams; maintain documentation and perform code reviews.

Requirements:

- 3+ years architecting data stores, file systems, databases, or high-throughput storage systems; BS in CS/Engineering or equivalent experience.
- Mastery of Rust, C, or C++ and strong understanding of storage architecture (on-disk formats, indexes, caching).
- Advanced knowledge of I/O subsystems, NVMe constraints, buffered vs direct I/O, and async interfaces like io_uring.
- Deep familiarity with kernel and memory management, custom allocators, and Linux scheduling/page management.
- Proven experience building concurrent systems with knowledge of locks, lock-free structures, and hardware memory models.
- Strong profiling and optimization experience focused on hardware mechanics, memory bus and CPU cache efficiency.
- Excellent debugging and cross-functional communication skills.

Nice to have:

- Experience with LSM trees, B-trees, or storage engines such as RocksDB, LevelDB, or WiredTiger.
- Background in versioned/multi-version datastores, snapshotting systems, or blockchain state storage.
- Familiarity with Linux tooling, systems automation, and systems architecture.
- Active participation in Bitcoin/Ethereum/blockchain projects or open-source communities.

Stack:

Rust, C, C++, RocksDB, LevelDB, WiredTiger, io_uring, NVMe, Linux

Benefits:

- Async work style
- Compensation: $119k - $180k (estimated)

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