Yevhen Viktorov
Senior Software Engineer at GlobalLogic
Kyiv, Ukraine
Summary
👤
Senior🎓
Top SchoolYevhen Viktorov is a Senior Software Engineer in Kyiv with a strong track record building high-throughput backend systems in Golang and Java, particularly in ad tech platforms that handle billions of bid requests daily. He has led small cross-functional teams, driven cloud migrations and cost-optimizing rewrites, and designed hybrid Java/Golang architectures for audience targeting and reach estimation. An active contributor to the notable Prebid Server Java project, he improved video ad serving and VAST handling, reflecting deep domain expertise in header bidding. Beyond production services, he evangelizes AI tooling internally and prototyped local LLM integration for large-scale video categorization, blending backend engineering with applied ML experimentation. His background in complex PostgreSQL optimization and OpenTelemetry-based ML monitoring underscores a pragmatic focus on observable, scalable systems.
4 years of coding experience
7 years of employment as a software developer
Master's degree Business Administration and Management General, Master's degree Business Administration and Management General at East-European University of Economics and ManagementIgor Sikorsky Kyiv Polytechnic Institute
Github Skills (8)
unit-testing10
javas10
video-ads10
openrtb10
vast10
java10
prebid10
testing9
Programming languages (1)
Github contributions (1)
prebid/prebid-server-java
Oct 2021 - Apr 2022
Java version of Prebid Server
Role in this project:
Back-end Developer
Back-end DeveloperContributions:76 reviews, 14 commits, 17 PRs in 6 months
Contributions summary:Yevhen primarily focused on enhancing the Java-based Prebid Server, specifically by implementing features related to video ad serving. Their work included integrating VAST wrappers using the 'adm' field in addition to existing URL-based ad retrieval. The user added new test cases to ensure the correct handling of video bids and VAST markup generation. Additional contributions involved refactoring for video-related functionalities, like Amp and Video response models, including debug information handling.
prebidjavarewardserver
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