Konstantin Efremov
Web Advertising Product Tech Lead at Luxup Network
Moscow, Moscow, Russia
Summary
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Senior🎓
Top SchoolKonstantin Efremov is a Web Advertising Product Tech Lead with 11+ years focused on high-performance client- and server-side ad systems, currently leading product engineering at Luxup Network. He combines deep JavaScript and PHP expertise with MySQL and ClickHouse experience to build complex header-bidding, ad delivery and consent solutions (Prebid, GAM/AdManager integrations, IAB TCF/CMP). Known for pragmatic engineering (DRY, YAGNI, SOLID) he optimizes Core Web Vitals and designs scalable ad stacks that automate line-item generation, multi-currency billing and realtime reporting. Equally comfortable in low-level XSLT or worker-based JS and in crafting technical specs, he often automates tedious workflows and polishes shared codebases. Outside work he applies CAD and 3D-printing skills to DIY projects, reflecting a hands-on approach to solving engineering challenges.
11 years of coding experience
17 years of employment as a software developer
Engineer's degree, Renovation in engineering, Engineer's degree, Renovation in engineering at Bauman Moscow State Technical University
English, Russian
Github Skills (84)
googleapis10
google-api10
highcharts9
web-components9
php9
js8
database8
intellij-plugin8
cpp8
charting8
header-bidding8
prebid8
performance-analysis8
audit8
embedded7
Programming languages (10)
Github contributions (5)
PsychodelEKS/soap4me-userjs
Sep 2017 - May 2022
UserJs for soap4me better experience
Contributions:18 commits, 1 PR, 17 pushes in 4 years 9 months
userjs
medianet/Prebid.js
Apr 2017 - Mar 2026
Setup and manage header bidding advertising partners without writing code or confusing line items. Prebid.js is open source and free.
Contributions:68 pushes, 4 branches in 9 years
headerprebidjavascriptconfusingbidding
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