Вікторія

VIKTORIIA
SIERKOVA
Data Analyst
Kyiv, Ukraine, hybrid (on-site + remote)

CONTACT ME SKILLS
[открыть контакты](см. выше в блоке «контактная информация») Excel & Google Sheets: Formulas, Formatting,
Pivot Tables, Data Cleaning, Visualization
[открыть контакты](см. выше в блоке «контактная информация»)
SQL: Advanced Queries, Window Functions, Query
@sierkova_vika Optimization, CTEs

LinkedIn Python: Pandas, NumPy, SciPy, Statsmodels, EDA,
Visualization (Matplotlib, Seaborn)
Tableau: Interactive Dashboards, LOD, Data
Storytelling
SUMMARY Power BI: Interactive Dashboards, DAX, Data
Modeling, Power Query, Power BI Service
Skilled in SQL, Python, PostHog: Product Analytics, Funnels, User
Tableau, Power BI, Excel, Behavior Tracking, Dashboards
Google Sheets, statistics, and Statistics: Descriptive Statistics, Sampling,
A/B testing. Experienced in Hypothesis Testing, Correlation
e-commerce and team A/B Testing: Design, Analysis, Reporting
projects. Other Tools: Jupyter Notebooks, GitHub, Jira, Meta
Ads, Canva, Microsoft Office 365, AI Tools

Strong at transforming raw
data into actionable insights. LANGUAGES
English: Upper-Intermediate, incl. Business Eng.
Combines analytical French: Pre-Intermediate
thinking with a creative
approach to problem- EXPERIENCE
solving developed through
DATA ANALYST, FROM AUGUST 2025
roles in education and
marketing. Completed more than 406 hands-on tasks.
Сompleted 4 end‑to‑end projects using Google
Academic background in Sheets, Python, SQL, statistics, hypothesis

mathematics, physics, and testing, and Tableau.
Practiced data storytelling by creating 13
international business.
interactive Tableau dashboards, with 9 showcased
in my public profile.
Fluent in English for
Worked as a Data Analyst on a team developing a
professional communication.
pet-services platform “Pawly” from scratch.
PORTFOLIO PREVIOUS EXPERIENCE
*Links inserted

CREATIVE COPYWRITER AT “BRAIN
SQL Projects:
TANK” CREATIVE MARKETING AGENCY,
queries for email activity, December 2024 - June 2025
timestamp breakdowns, and
Conducted market research.
revenue & cost and revenue vs.
Identified insights into consumer behaviour.
target comparisons
Collaborated with designers, project managers,
and directors to deliver projects.
Tableau Projects:
Worked with companies across diverse
interactive dashboards to analyze
industries.
trends, A/B test results, and KPIs
Presented ideas on brand concepts and
advertising campaigns.
Python Projects: Produced promotional storytelling (e.g., created
A/B Test Analysis and EDA for 2 e- the game plot for Lays campaign).
commerce companies Solved problems under tight deadlines,
(complemented by Tableau dashboards)
consistently achieving high client satisfaction.

Google Sheets:
ENGLISH TEACHER AT “ANTI-SCHOOL” &
merged tables, built charts,
performed ABC analysis, and
TUTOR
March 2024 - December 2024
provided insights
Simplified complex concepts for 10+ students of
Team Project (website): varying ages and proficiency levels (A1-B1).
database design, SQL, Tableau, Designed structured lesson plans and adapted
PostHog, A/B test plans, insights, methods to improve learning outcomes.
and recommendations

ACHIEVEMENTS EDUCATION
200 out of 200 in the National Taras Shevchenko National University of Kyiv,
Multi-Subject Test for “INSTITUTE OF INTERNATIONAL RELATIONS”
Mathematics, 2022 Bachelor`s Degree in International Business
Excellent Result, All-Ukrainian 2022-2026
Physics Competition Levenya-2021
2d Place Winner of the 11th and KHMELNYTSKYI LYCEUM
12th Regional Mathematics Physics and Mathematics, with Distinction
Olympiad, 2018, 2019 2020-2022

ADDITIONAL EDUCATION
Data Analyst course at Mate Academy (2026) Certificates (link inserted)
Business Valuation at LinkedIn Learning (2026)
Public Speaking Course at the John F. Kennedy Institute of Rhetoric (2025)
Targeting course at “Targeting 0-100” Company (2023)