Yurii

Yurii Kretov
Data analyst

 [open contact info](look above in the "contact info" section)  Odesa, Odesa  [open contact info](look above in the "contact info" section)
Motivated and detail-oriented Data Analyst with experience in marketing analytics, operational reporting, business
intelligence, and data-driven process optimization. Skilled in SQL, Python, Power BI, Looker, and data visualization, with a
strong ability to transform complex data into actionable insights and clear business recommendations.
Fast learner with an analytical mindset, strong attention to detail, and the ability to work both independently and in cross-
functional teams. I value accuracy, clear communication, and continuous improvement, always aiming to deliver high-quality
work that supports better decision-making.

EDUCATION WORK EXPERIENCE

2022-09 - 2024-01 2025-10 - Present

Master of Marketing Oddity
Kharkiv Karazin National University Data analyst
• Conducted in-depth conversion funnel analysis for new users,
2018-09 - 2022-06 identifying key drop-off points and opportunities for improvement
Bachelor of Marketing across acquisition and onboarding flows.
Kharkiv Karazin National University • Optimized the existing user segmentation system, improving
targeting logic and helping increase new user conversion by 25%.
• Developed and maintained Looker reporting for marketing flows,
SKILLS including QRS and prep-cust, providing visibility into campaign
performance, customer behavior, engagement, and conversion metrics.
SQL - PostgreSQL, MySQL, MS SQL, Redshift
• Built SQL-based reporting pipelines to consolidate marketing,
Python - OOP, FastAPI, sqlalchemy, pydantic
customer, and event-level data, improving the accuracy and reliability of
Pandas, numpy, sklearn, matplotlib, seaborn
business reporting.
ML - regression, classification, clustering
• Created analytical views and dashboards that helped marketing and
PowerBI, Redash, Looker
product teams evaluate flow performance, compare user segments, and
make data-driven decisions.
CERTIFICATIONS
2025-03 - 2025-08
Advanced FastAPI, Stepik 2026
Aventus IT
Data analyst
Mastering DAX Calculations in Power BI, Udemy, 2025
• Designed and developed dynamic Power BI reports and dashboards
to support the company’s rapid business growth, enabling stakeholders
OOP in Python, Stepik, 2024
to monitor KPIs, financial performance, and operational efficiency.
• Optimized complex SQL queries in MS SQL and PostgreSQL,
Start ML, Karpov Courses, 2023 improving query performance and reducing data refresh times across
multiple reporting pipelines.
TOEFL IBT, 2023 • Collaborated closely with cross-functional teams to translate business
requirements into efficient data models, automated reporting solutions,
and interactive visualizations.
• Ensured data accuracy and integrity by streamlining ETL processes
and implementing best practices for performance tuning and query
optimization.

2024-03 - 2025-01

Simply Contact
Operational Data Analyst
• Developed and deployed an ML-based workload prediction model,
improving staff allocation efficiency by 25% and helping reduce ticket
backlog by 15%.
• Built a workforce forecasting system that enabled the call center to
handle incoming ticket volume within SLA and improve operational
planning.
• Created and optimized interactive Power BI dashboards for
operational and management reporting, improving real-time KPI
tracking and reducing data refresh time by 40%.
• Analyzed ticket volume, workload patterns, SLA performance, and
agent productivity to support staffing decisions and improve service
quality.

2022-11 - 2024-02

Grosspeak LLC
Data analyst
• Developed automated data pipelines using SQL and Python, reducing
data processing time by 40% and improving reporting accuracy.
• Built interactive dashboards in Redash, enabling real-time tracking of
key business metrics and supporting faster decision-making.
• Analyzed transportation, freight, and route-level data to identify
profitable lanes and improve business performance.
• Designed and implemented predictive models using Scikit-learn and
Pandas, helping management evaluate profitability and optimize
operational decisions.