Анастасія

[відкрити контакти](див. вище в блоці «контактна інформація»)
Anastasia Postol [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram https://t.me/poostool
DATA ANALYST
LinkedIn Anastasiia Postol
Kyiv, Ukraine, office, hybrid


SUMMARY
Data Analyst with a marketing and project coordination background, fluent in both data and business language.
I use SQL, BigQuery, Tableau, and Google Sheets to turn raw numbers into decisions stakeholders can actually
act on. Quick to pick up new tools and always digging into why metrics move, not just what they show.

SKILLS

● Spreadsheets: Pivot Tables, Data Cleaning, Visualization
● SQL: Advanced Queries, Window Functions, Query Optimization, Common Table Expressions (CTE)
● Python: Pandas, NumPy, Matplotlib, Seaborn
● Tableau: Interactive Dashboards, Data Storytelling, Publishing
● Statistics: Sampling, Hypothesis Testing, Correlation, Statistical Significance
● A/B Testing: Planning, Analysis, Reporting
● Other Tools: Jupyter Notebooks, Google Analytics, Excel, Git, GTM
● Languages: English B1, French A2

EXPERIENCE

Data Analyst | Projects Nov 2025 – Present

● Analyzed user behavior and funnel data to spot conversion drop-offs and revenue opportunities
● Built SQL + Python pipelines connecting BigQuery to Tableau for automated, self-updating dashboards
● Ran A/B tests, cohort, and segmentation analysis to guide product and marketing decisions
● Turned statistical results into clear recommendations for non-technical stakeholders

PORTFOLIO
1. Product Sales Analytics | ABC Analysis · Google Sheets
1,300+ orders from 45 countries, categorized by revenue, profit, and units sold. Found a category that leads in
sales volume but underperforms on margin.
2. A/B Test Analysis Dashboard | Tableau + BigQuery
Dashboard with a live BigQuery connection — updates automatically, no manual data reloads. Found a +12% lift
in payment conversion, plus a drop-off at registration worth investigating.
3. E-commerce Statistical Analysis | Google Colab + Tableau
Statistical analysis of user behavior using Mann-Whitney, Kruskal-Wallis with Bonferroni correction, and z-tests
for conversions. Revealed heavy business dependence on a single traffic channel and market — a risk worth
diversifying.
4. AB test conversion analysis | Google Colab + Tableau

Two-proportion z-tests across 4 stages of the purchase funnel, with p-values for each. Result: an interactive
dashboard that instantly flags statistically significant changes.

● Daisy Marketing Agency
Self Employed Feb 2025 - Nov 2025
Founded and managed a marketing agency, overseeing operations, project delivery, and data-informed
decision-making.

● Independently managed end-to-end project delivery and client communication for 1-2 clients at a time,
ensuring campaigns stayed on schedule and aligned with business goals
● Tracked clicks, conversions, and ROI in Meta Ads Manager and Google Sheets, using performance
data to guide budget allocation and creative decisions
● Presented campaign performance and recommendations to clients using Canva, translating raw data
into clear, actionable reporting

EDUCATION
Institution: Kyiv Applied College of telecommunication
Qualification and Degree: Diploma of Professional Junior Bachelor in Management
Dates Attended: 2022 – 2026

ADDITIONAL EDUCATION //
● Data Analyst course at Mate academy
● Digital Marketing Manager at Diia.Education

ACHIEVEMENTS
● Volunteered at Robotics Festival, 2025 – assisted with event coordination, participant support, and
logistics management in a fast-paced environment.