Кіріл

Name: Kirill Kosak

Contact Address

• City: Brovary, Kyiv region, Ukraine
• Phone Number: [відкрити контакти](див. вище в блоці «контактна інформація»)
• Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
• Telegram: @Wep0ut1337
• LinkedIn: [відкрити контакти](див. вище в блоці «контактна інформація»)

Summary

Dedicated Systems Analysis student at the State University of Trade and Economics with a
strong background in mathematical modeling and data processing. Finalist and semi-finalist
of major Ukrainian hackathons, demonstrating the ability to solve complex technical
challenges and master new technologies rapidly. Focused on leveraging analytical thinking
and technical skills to optimize customer support processes and data diagnostics.

Technical Skills
Programming & Databases:

• Python (Pandas, NumPy), SQL, Microsoft SQL Server.
Data Analysis & Visualization:

• Microsoft Excel (Pivot Tables, Advanced Formulas, Data Modeling), Data Cleaning,
Data Visualization.
Tools:

• Visual Studio Code, Jupyter Notebook, Git, SSMS.
Core Competencies:

• Systems Analysis, Sensor Fusion, Fraud Detection, Mathematical Modeling.

Hachathons & Experience

Finalist | BEST HACKathon Lviv 2026

Developed an Inertial Navigation System (INS) for GPS-denied environments.

• Implemented Sensor Fusion logic to merge data from multiple IMUs (accelerometers
and gyroscopes).

• Utilized an Error-State Kalman Filter (EKF) and barometric data for trajectory
correction and drift minimization.

• Processed raw telemetry logs using Python and Pandas to generate 3D movement
trajectories.
Semi-finalist | Monobank & Skelar Hackathon 2026

• Developed a Fraud Detection model by analyzing large-scale banking datasets (Big
Data).

• Identified suspicious patterns and anomalies in user behavior to enhance system
 security.

• Collaborated in a high-pressure environment to build data-driven solutions for
financial safety.

Data Analysis & Optimization

• Performed data cleaning and standardization for complex datasets using SQL and
Excel.

• Built performance dashboards in Excel using Power Pivot to visualize business trends
and insights.

Education

• State University of Trade and Economics (SUTE)
▪ Faculty of Information Technology Bachelor's
Degree in Systems Analysis (2025 – 2029)

Languages

• Ukrainian — Native
• English — Intermediate (B1)