Data Scientist (AdTech)

TL;DR

Data Scientist (AdTech): Develop and evaluate machine learning models to improve product performance and business outcomes in a large-scale advertising network. Focus on building predictive models, conducting deep data analysis, and optimizing traffic and user behavior.

hirify.global is an advertising network handling billions of events daily across multiple data centers in Europe and the US.

What you will do

• Develop and evaluate machine learning models to improve product and business outcomes
• Collaborate cross-functionally with analysts, developers, and product managers
• Conduct deep exploratory analysis of massive product and user data
• Build predictive and prescriptive models to support decision-making
• Participate in feature selection, A/B test design, and model validation
• Develop tools and dashboards to monitor key metrics and ensure data quality

Requirements

• 3+ years of experience in data science or applied machine learning
• Strong skills in statistical analysis, hypothesis testing, and experimental design
• Understanding or willingness to learn ad tech and media buying fundamentals
• Fluent in SQL, especially ClickHouse (major plus)
• Proficient in Python or R for data analysis and machine learning
• Experience working with large-scale datasets (terabytes to petabytes)

Culture & Benefits

• No dress code and no bureaucracy
• Fully official employment with competitive salary
• Laptop choice: Mac or PC
• Medical insurance and mobile communication
• Free lunches, beverages, fruit baskets, and snacks in the office
• Free English course and gym membership coverage
• Partial payment for schools and childcare (35%)
• Fitness reimbursement and assistance with school and kindergarten payments