Kirill Shcherbatov

X100 storage engine developer at Actian Vector (columnar relational DB) - C/C++, Python, Bash Worked on core storage‑layer components in C/C++ for distributed MPP deployments, led architectural work on cloud‑native storage paths, reliability, and performance‑critical internals, contributed to incident response and long‑term stability improvements with DevOps. Managed and mentored a team of two junior software engineers.

Tarantool developer (in-memory, partial schema Database) - C/C++, Lua, Python, Bash Worked on the in‑memory core, high‑performance indexing, SQL execution, and low‑latency data access. Designed JSON‑path, multikey, and functional indexes; implemented SQL constraint checks. Improved SQLite‑based SQL VM internals and performance.

Acronis Storage developer (software‑defined storage exposed via S3, NFS, and a proprietary protocol for Acronis Backup) - C, Python, Flask, Bash Worked on distributed storage internals and cluster‑level reliability: online ZSTD compression for logging subsystem, SNMP cluster health metrics, RAID locate functionality, and Consul-compatible service discovery integration. Performed initial ARM bring‑up, resolved portability issues, and executed performance benchmarks.