TECHNOLOGIES, SYSTEMS, AND PROFESSIONAL TOOLS

Analytics and Attribution

Google Analytics 4 (GA4), Google Analytics, Google Tag Manager (GTM), Firebase SDK, AppsFlyer, Adjust, FullStory. Olena has hands-on experience with these platforms across multiple projects. Their use depends on the needs of each client and project.

Advertising and Marketing Platforms

Google Ads, Meta Ads (Facebook / Instagram), TikTok Ads, Bing Ads, LinkedIn Ads, DV360, AdForm. These advertising tools are used according to project requirements and available channels. Individual documented advertising cases are described in detail for Google Ads and Meta.

BI, Data, and Reporting

Tableau, BigQuery, SQL, dashboards, reporting frameworks, spreadsheet analysis. Used in analytics practice and client projects. Specific warehouse sizes and data architectures are not added without project documentation.

UX, Search Quality, and Product Analytics

UX review, customer journey mapping, funnel analytics, buyer persona development, search intent, search relevance, semantic search, ranking evaluation, NDCG, MRR, Precision, Recall, CTR, A/B testing. These are methods and fields of analysis, not evidence of ownership or mastery of any particular proprietary algorithm.

Web Architecture and Systems Integration

API integrations, data models, cloud architecture, microservices, containerization, DevOps, technical governance, privacy/security practices. These competencies appear in her LinkedIn Web Application Architect profile. No programming language, DevOps stack, or cloud provider is inferred without evidence.