Oleksandr Kovalchuk
Information Technology Specialist, IBM Ukraine
Ukraine
Summary
👤
Senior🎓
Top SchoolOleksandr Kovalchuk is an experienced IT and security specialist with over a decade managing complex server, virtualization and identity infrastructures at IBM and major Ukrainian banks. He combines deep hands-on expertise in Windows and Linux server administration, VMware ESXi, Active Directory, SCCM, Nagios and McAfee appliances with practical security engineering—deploying IDS/HIDS, encryption for ATM/POS networks, and PCI DSS-compliant controls. His background includes leading technical security teams, performing forensic investigations, and delivering audit-ready solutions without extra budget by leveraging OS features and open-source tools. Comfortable in both operational and compliance roles, he has a track record of keeping large, mixed OS environments secure and resilient under real-world constraints.
10 years of coding experience
5 years of employment as a software developer
MS in Radio Technology, MS in Radio Technology at Kiev Military Radio Engineering institute (new name) (KVIRTU PVO)MBA in National Security, MBA in National Security at National Academy of Security Service of Ukraine
English, Russian, Ukrainian
Github Skills (37)
commerce10
spree10
ecommerce9
spryker9
readonly9
dockerfile9
shopware9
claranet8
docker8
yii2-rbac8
b2b8
container7
yii2-extension7
authentication6
auth5
Programming languages (2)
Github contributions (5)
avtop3/yii2-pm-conf
Mar 2016 - Feb 2017
Contributions:96 commits, 5 PRs, 83 pushes in 11 months
avtop3/yii2-mongodb-multilingual-behavior
Jul 2015 - Jul 2016
Contributions:12 pushes, 1 branch in 11 months
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