Nazar Serhiichuk
Lead Cryptography R&D Engineer at Cossack Labs
Kyiv, Ukraine
Summary
🤩
Rockstar🎓
Top SchoolNazar Serhiichuk is a Lead Cryptography R&D Engineer based in Kyiv with seven years of software engineering experience and a passion for applied cryptography. At Cossack Labs he advanced the Acra database security suite—hardening packet parsing, removing deprecated logic, and closing vulnerabilities to improve field-level encryption and secure query capabilities. He blends research-minded cryptographic design with pragmatic backend engineering, shipping robust error handling and secure configurations for SQL and NoSQL systems. Nazar holds a master's in Computer Software Engineering from NTUU Kyiv Polytechnic Institute and is known for preferring code-level fixes that eliminate entire classes of bugs rather than band-aid patches.
7 years of coding experience
Igor Sikorsky Kyiv Polytechnic Institute
Github Skills (9)
database-security10
go10
postgresql10
encryption10
cryptography10
security9
error-handling8
databases8
database8
Programming languages (10)
Github contributions (5)
cossacklabs/acra
Mar 2022 - Jul 2022
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 & Security Engineer
Back-end Developer & Security EngineerContributions:56 reviews, 21 commits, 38 PRs in 4 months
Contributions summary:Nazar primarily focused on enhancing the security and functionality of the Acra database security suite. Their contributions include removing deprecated or unnecessary code, such as `IsForbidden` logic, and improving the handling of database packets. Furthermore, the user worked on fixing bugs in the packet parser, implementing more robust error handling, and improving the overall stability of the system. They also addressed vulnerabilities by adding support for more secure configurations and implementing measures to handle potential threats, focusing on the security aspect of the project.
proxydatabase-proxydjangoencryption-serverintrusion-detection
G1gg1L3s/Tick
Dec 2020 - Jan 2021
Contributions:62 commits, 17 pushes, 1 branch in 24 days
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