Тетяна

TETYANA LIVITSKA
Data Analyst | Product Analytics | SQL, Python, A/B Testing
Zhytomyr, Ukraine (open to remote) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) |
github.com/livitskatetyana

SUMMARY
Data Analyst with 10 months of experience in product and marketing analytics at an online marketplace. Skilled in SQL, Python,
statistics and A/B testing. I investigate KPI anomalies end-to-end, evaluate experiments, validate event tracking and build
monitoring dashboards and alerts, automating routine analysis with AI agents while verifying every number. Background in
economics and finance (MSc).

EXPERIENCE
Process Analyst (Data Analytics & AI Workflows), User Acquisition
Lalafo (online marketplace), remote | Apr 2026 - Oct 2026
Monitored product and marketing KPIs, handled 250+ alert incidents and investigated 50+ metric anomalies end-to-end using
SQL, Python change-point detection and cross-source validation (GA4, Firebase, Google Search Console), separating real
user behavior from tracking issues and bot traffic.
Identified root causes of unexplained metric changes and quantified their impact on key metrics to support decisions.
Assessed the impact of product releases on user activity metrics.
Evaluated A/B tests with A/A checks, difference-in-differences, MDE and power analysis; prepared rollout / stop
recommendations.
Validated server-side event tracking by reconciling database records, application logs and code; wrote analytics event
specifications.
Built BI dashboards and configured 240+ KPI alert rules; tuned thresholds with robust statistics and seasonality to reduce
false positives.
Automated routine analysis with AI agents (Claude Code).
Analytics Trainee | Lalafo | Jan 2026 - Apr 2026
3-month analytics traineeship (1.5-month course + 1.5-month team internship): process metrics, data visualization, anomaly
detection, event tracking, data modeling, experiment evaluation; hired to the core team.
Social Media Specialist | Level Up Creative Agency (US, remote) | Mar 2024 - Apr 2025
Analyzed user engagement and content performance for clients' social media accounts and optimized content strategy based
on data.
Logistics Department Specialist | Aurora Group | Oct 2023 - Mar 2024
Analyzed and optimized delivery routes and logistics processes; maintained reporting and tracked KPIs in Excel.
Recruiter | EvaCodes | Oct 2021 - Mar 2022
Maintained the candidate database and analyzed recruitment funnel metrics.

SKILLS
SQL & Programming: SQL (ClickHouse, PostgreSQL), Python (pandas, NumPy, SciPy, matplotlib, seaborn), R
Analytics: A/B Testing, Statistical Tests (z-test, confidence intervals, MDE), EDA, Anomaly Detection, Time Series Analysis,
Funnel & Cohort Analysis, Product Analytics, Marketing Attribution, Conversion Tracking (Meta CAPI), Event Tracking QA, Log
Analysis, Data Quality, Data Modeling
BI & Tools: Apache Superset, Tableau, Power BI, Google Analytics 4 (GA4), Firebase, Adjust, Google Search Console,
DBeaver, dbt, DataHub, Jira, Confluence, Git / GitLab, Excel (advanced)
AI & Docs: Claude Code, AI agents, prompt engineering, analytics workflow automation; requirements and event specifications
(PRD)

EDUCATION
Master's degree, Finance, Banking, Insurance and Stock Market
National University of Ostroh Academy | 2025 - 2026
Bachelor's degree, Economics (Economic Cybernetics)
National University of Ostroh Academy | 2021 - 2025
Research: used-car price forecasting in Ukraine with econometric models (R).

LANGUAGES
Ukrainian (native), English (B2, Upper-Intermediate), Polish (B1), German (A2)