Аня

HANNA TYMOFEIENKO
Junior Data Analyst
Data Analyst with strong skills in data exploration, visualization, and
statistical analysis. Experienced in cleaning and processing data,
delivering insights, and supporting business decisions. Confident in
using AI tools to solve complex analytical tasks and improve
workflow efficiency. Looking to contribute to data-driven strategies
and grow within a collaborative team.

Project experience
User Funnel Analysis in a Digital Product
In this project, I built a dashboard to analyze user progression through
the conversion funnel — from registration to trial and finally to payment.
Using SQL and Tableau, I calculated KPIs such as the number of users at
each stage, conversion rates, and monthly trends in user behavior.
I visualized results through dynamic KPI blocks, a time series chart of
[відкрити контакти](див. вище в блоці «контактна інформація») registrations and trial conversions, and a funnel diagram showing
absolute numbers and conversion rates.
[відкрити контакти](див. вище в блоці «контактна інформація»)
This project provided insights into user behavior and helped identify
Telegram potential drop-off points to optimize the funnel.

linkedin A/B Test on Subscription Pricing
As part of an experiment to evaluate the impact of pricing strategies, I
Bucha, Ukraine
conducted an A/B test comparing a standard $4.99 subscription with a
Hard skills 50% discount offer.
Data analysis & visualization I analyzed conversion rates from install to payment, selected a
A/B testing & statistical hypothesis statistical test to assess significance, and calculated p-values and
testing confidence intervals.
SQL (queries, joins, CTEs) Visualization was used to communicate differences between the
Python (pandas, numpy, matplotlib, control and test groups, including 95% confidence intervals.
seaborn, scipy) The results informed recommendations on subscription pricing and
Data preprocessing & cleaning supported decisions to improve monetization strategy.

Tools Work Experience
Individual entrepreneur
Tableau Sales manager
Google Sheets 2018 - now
Power BI Search for new clients for the online store
Amplitude Active sales of company products
Google Analytics , Receiving calls, responding to notifications online
Jupyter Notebook Consulting on the assortmen
ChatGPT / AI assistants
Music Mall
Audio Advertising Sales Manager
Soft skills
2013 - 2015
Analytical thinking Active search for new clients, creation of own client base (telephone
Communication skills mode and Internet) and management of existing clients
Time management Analysis and systematization of client base
Continuous management of the client from order to payment,
Languages transfer a new client to the status of permanent
English - Pre-Intermediate Education
Ukrainian - Native Data Analyst Financier
IT School "GoIT" Volodymyr Dahl East Ukrainian National
2024 - 2025 University
2007 - 2012