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Big Data Analyst

LocationAll

Work moderemote

Typefull-time

DepartmentKYIVSTAR Київстар, Big Data Products and Services Implementation Department

Company size10,000+ people

First seen3mo ago

Last seen1d ago

About the role

We are looking for a Data Analyst to work with large-scale datasets in a cloud environment using SQL (Trino) and PySpark. The role focuses on building datasets, identifying application hosts, and creating audience segments based on user behavior.

Responsibilities:

• Querying and processing large datasets using Trino (SQL);

• Working with data in AWS environment using PySpark;

• Identifying and analyzing application hosts / domains based on traffic data;

• Building audience segments based on website activity, call data, behavioral patterns and segment rules;

• Monitoring and auditing accuracy and completeness of collected data;

• Organizing data into usable formats;

• Creating basic visualizations and reports (Power BI or similar);

• Generating information and insights from data and identifying trends and patterns;

• Conducting A/B tests to understand and evaluate quality of data models;

• Developing and maintaining automated data processes.

Requirements:

• Strong experience with SQL (Trino, Presto, or similar);

• Experience working with large-scale datasets in distributed environments (AWS, PySpark);

• Excellent knowledge and confident Excel user;

• High attention to details;

• Gaining knowledge from a large amount of data;

• Basic knowledge of statistics;

• Experience with Power BI or other BI tools;

• Strong analytical thinking and problem-solving skills;

• Familiarity with Jira, Confluence.

Will be a plus:

• Experience with telecom data;

• Understanding of web/app traffic and domain classification;

• Knowledge of Python.

We offer:

• Work in one of the largest and most beloved telecom company in Ukraine;

• Opportunity to work with large-scale real-world data;

• Remote work with possibility to visit the office;

• Flexible working hours;

• Onboarding program which can help with fast on-line adaptation;

• Competitive salary and annual bonus;

• Paid vacation and sick leave;

• Medical and life insurance;

• Financial aid in different life situations;

• Great possibilities for professional development and career growth;

• Friendly and collaborative team environment.

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