Тетяна

Tetiana Poliakova
[відкрити контакти](див. вище в блоці «контактна інформація»), [відкрити контакти](див. вище в блоці «контактна інформація»), [відкрити контакти](див. вище в блоці «контактна інформація»)

Telegram: @usershine689, Kyiv, Ukraine

Data Analyst
Data Analyst with over 15 years of experience in data analysis and strong practical skills in SQL query
development. Combines analytical thinking with creative problem-solving to develop effective data strategies and
drive business decisions. Confident working with SQL, with a solid understanding of statistics and data
visualization. Skilled at creating clear, informative dashboards and communicating analytical insights in simple,
understandable terms. Experienced in maintaining databases in Oracle DBMS environments.

After a 4-year career break, seeking a Junior Data Analyst position to re-enter the field. Recently completed
several Data Analysis and SQL courses on LinkedIn Learning to refresh and update skills.
HARD SKILLS

SQL (query building, optimization), ETL process understanding, Statistical Analysis and Visualization, Dashboard
development and reporting, Database management.

Tools

PostgreSQL, DBeaver, SQLite, Oracle, Python, Tableau, Power BI, Looker Studio, BigQuery, Excel, Google Sheets,
Oracle DBMS.

Soft Skills

Problem-Solving, Analytical and Critical Thinking, Self-learning and adaptability, Communication and teamwork.
Project Experience

Onboarding Funnel in SaaS

Tools: SQL, Power BI, Google Sheets, Looker Studio, Tableau, BigQuery

Description: Built a dashboard to analyze user churn and revenue dynamics, identifying weak points in the
conversion funnel and improving retention strategies.

Responsibilities: Data processing, visualization, and user behavior analysis. Provided retention improvement
recommendations.

Result: Identified key churn drivers and reduced reporting time for management by 40%.
PROFESSIONAL EXPERIENCE


Various companies, 2004–2021

Analyzed business data to identify trends and support strategic decision-making.

Designed and optimized SQL queries for reporting and data extraction.

Created dashboards and reports in Tableau, Power BI, and Looker Studio.

Collaborated with cross-functional teams to translate data into actionable insights.

Maintained and managed Oracle databases to ensure data quality and consistency.
EDUCATION

Donetsk National Technical University

2004

Specialist’s Degree in Software Development

Additional Education



Data Analyst — GoIT Certificates earned) 202
( 5


Advanced SQL for Data Scientists — LinkedIn Learning 202 5


SQL for Data Analysis — LinkedIn Learning 202 5


Learning SQL Programming — LinkedIn Learning 202 5


Power BI: Dashboards for Beginners LinkedIn Learning 202
— 5


Statistics Foundations 1:The Basics LinkedIn Learning 2025
—

LANGUAGES

English - Pre-Intermediate

Ukrainian - Native

Russian - Native