Dmitriy Kopylenko
Senior Software Engineer at Unicon, Inc.
New Brunswick, New Jersey, United States
Summary
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RockstarDmitriy Kopylenko is a Senior Software Engineer with over 20 years of experience building enterprise Java systems, specializing in core Spring technologies, Spring Boot, Spring Cloud, Groovy, and integration patterns. Based in New Brunswick, NJ, he currently delivers Identity and Access Management solutions at Unicon, where he has driven production-grade IAM deployments since 2011. Dmitriy contributes to the well-known Apereo CAS project, improving server-side authorization, error handling, and test coverage—work that underscores his focus on security, reliability, and maintainability. He combines deep back-end craftsmanship with a pragmatic approach to refactoring and dependency upgrades, making legacy systems more robust and easier to operate.
21 years of coding experience
Stackoverflow
376reputation
256kreached
7answers
3questions
Github Skills (18)
user-authentication10
authentication10
java10
javas10
spring-boot10
logging9
testing8
saml7
openid-connect7
sso-authentication7
oauth7
concurrency6
hibernate6
cas6
grails6
Programming languages (9)
Github contributions (5)
apereo/cas
Dec 2004 - Oct 2022
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 485 commits, 108 PRs in 18 years 1 month
Contributions summary:Dmitriy primarily focused on back-end development, contributing to core functionalities of the CAS server. Their work included implementing a feature to disallow proxy tickets and constructing informative log messages for error handling. Further, the user refactored the service authorization check, constructed error messages, and upgraded the dependency libraries. This user also added unit tests and performed a refactoring of the code base.
signwebssoapereoapache2identity
Unicon/cas-password-manager
Aug 2012 - Oct 2014
Contributions:2 commits in 2 years 2 months
cas-serverpassword-managerpasswordcapabilitiescas
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