Oleksii Lozovskyi
Senior Software Engineer at [NDA] Company
Japan
Summary
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RockstarOleksii Lozovskyi is a Senior Software Engineer based in Japan with over a decade of experience building high-performance backend services, network protocols, and security-focused systems in Rust, Go, and C on Linux. He has a strong track record in native systems programming and production-grade cryptographic tooling, contributing key features like multi-key decryption and key rotation to the Acra database security suite. An active open-source contributor, Oleksii improved interoperability and clipboard/file-transfer behavior in the widely used FreeRDP project and strengthened package management and core-library robustness in chibi-scheme. His background spans roles from intern to senior engineer across companies including Apriorit, Bitfury, and Cossack Labs, blending long-term product focus with low-level systems expertise. Colleagues rely on him for pragmatic solutions to tricky problems involving OS integration, secure key handling, and performance-critical code.
12 years of coding experience
9 years of employment as a software developer
Russian, Ukrainian, English, Japanese
Github Skills (17)
package-management10
key-management10
c1110
c1710
database-security10
x1110
go10
scheme10
file-transfer10
encryption10
golang9
database8
cryptography8
database-administration8
databases8
Programming languages (17)
Github contributions (5)
cossacklabs/acra
Feb 2020 - Oct 2020
Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:135 reviews, 86 commits, 115 PRs in 8 months
Contributions summary:Oleksii contributed to the development of the database security suite by implementing multi-key decryption and key rotation features. The contributions included adding utilities for multi-key decryption, updating the acra-translator to support multiple keys, and modifying keystore functionalities to support historical keys. These changes enhanced the database proxy's ability to handle key rotation and maintain data decryption capabilities.
proxydatabase-proxydjangoencryption-serverintrusion-detection
FreeRDP/FreeRDP
Aug 2013 - Nov 2018
FreeRDP is a free remote desktop protocol library and clients
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 46 commits, 7 PRs in 5 years 3 months
Contributions summary:Oleksii primarily contributed to the X11 client-side implementation for the FreeRDP project. The commits focused on enhancing the clipboard redirection functionality, including support for transferring raw clipboard data, correctly handling HTML and text data, and improving file transfer capabilities via the cliprdr channel. The user also implemented features related to icon caching and the handling of RAIL application windows. These changes demonstrate a focus on improving interoperability between the FreeRDP client and remote applications.
freerdpremote-desktopsdlrdpandroid
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