Big Data Analyst

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.