Yury Strozhevsky
Freelance Software Engineer at Home
Mari El Republic, Russia
Summary
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Rockstar🎓
Top SchoolYury Strozhevsky is a freelance software engineer with 12+ years focused on security, PKI, cryptography, and PDF processing, combining deep C++ and JavaScript expertise. He is the author and maintainer of widely used Russian cryptographic tooling and key open-source projects such as PKI.js and ASN1js, contributing practical implementations for X.509, OCSP, PKCS#10 and certificate-chain validation. Comfortable working across distributed international teams, he has both hands-on backend development and prior management experience leading security and audit efforts. Yury’s work often tackles “impossible” problems—Merkle tree operations for Certificate Transparency and complex PDF signing/encryption among them—reflecting a knack for turning cryptographic theory into production-grade libraries. Based in the Mari El Republic, he pairs long-term product ownership with frequent open-source publishing and technical authorship on ASN.1 and CAdES.
12 years of coding experience
11 years of employment as a software developer
Бакалавр, Радиотехника, Бакалавр, Радиотехника at Марийский Государственный Технический Университет (МарГТУ)
English
Stackoverflow
13reputation
59reached
0answers
1question
Github Skills (9)
javascript10
certificate10
x509certificates10
cert10
asn110
x509certificate210
pki10
pdf-generation6
pdf6
Programming languages (8)
Github contributions (5)
PeculiarVentures/PKI.js
May 2014 - Jan 2021
PKI.js is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto (Web Cryptography API) and requires no plug-ins.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 375 commits, 29 PRs in 6 years 9 months
Contributions summary:Yury primarily focused on implementing features related to Public Key Infrastructure (PKI) in the PKI.js JavaScript library. Their commits involved adding and modifying code for various components, including certificate chain validation, PKCS#8 support, authority information access extensions, and PKCS#10 functionality. The user's work also included adding features related to working with X.509 certificates and CRL profiles.
signingtimestampasnweb-cryptography-apijavascript
YuryStrozhevsky/YuryStrozhevsky
Aug 2020 - Apr 2024
Contributions:1 PR, 13 pushes, 1 branch in 3 years 9 months
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