Hi!
My name is Ivan Boldyrev, I’m a Rust software engineer with quite broad interests: functional programming, types, compilers, Rust, big data, highload, Web, ARM processors.
I currently live in Barcelona, Spain. I was born in a suburb of Novosibirsk, Russia, have been living in Saint Petersburg, Russia and Tbilisi, Georgia.
I am a big fan of Emacs, Rust and my Apple Macbook Air M1. My other hobbies include studying French, ink pens, sailing and reading.
Contact Contact: lispnik@gmail.com LinkedIn: linkedin.com/in/ivan-boldyrev GitHub: github.com/monoid Location: Barcelona, Catalonia, Spain Top Skills Languages: Rust, Python, C++. Rust ecosystem: Tokio, axum, tonic, serde, Rkyv, WASM, libc. Domains: Distributed systems, Performance engineering, Vector search, Web crawling, System programming. Open Source: WASM-SIMD implementation of BLAKE3, Performance contributions to Rkyv Job Experience Qdrant Solutions GmbH Core Rust Developer, remote contract Sep 2025 - May 2026 (8 months) High-performance vector database. Optimized batch search operations by using CPU cache more efficiently. Identified and fixed a memory safety issue (unsoundness) in the production Rust code. Analyzed performance of Qdrant under concurrent search-update workloads. Based on this analysis, designed a new concurrent architecture for the Qdrant core using fine-grained locks and atomic operations. Stealth cryptography startup Rust Developer, short term remote contract Jun 2025 - Sep 2025 (3 months) ...