At Microsoft, I enabled video-ad experiments that reduced accidental clicks by 15% and increased revenue by 4%. I also owned three video-ad projects end-to-end, from architecture and implementation through deployment and production monitoring.
I deployed a Playwright request-validation framework across six ad products and unified React SPA coverage reporting with Azure DevOps pull-request gates. These checks helped catch duplicate impressions, missing beacons, and coverage gaps before release.
At Criteo, I delivered campaign analytics and migrated BidSwitch to an Nx monorepo with independently deployed applications. Earlier, at Yandex, I built Smart Design for RTB creative authoring and optimized its React editor to stay responsive across tens of thousands of banner configurations.
