Data Scientist / Algorithm Engineer (AdTech)

Data Scientist / Algorithm Engineer at MGID focusing on CPA optimization in AdTech. Responsibilities include data analysis of large-scale event data to identify trends and inform decisions, designing, implementing, and optimizing algorithms for CPA targets, building and refining predictive models to improve CPA campaign performance, collaborating with product/business/tech teams to translate findings into actionable recommendations, conducting A/B tests to validate algorithm changes, and creating dashboards to track KPIs and communicate results to stakeholders. Requires proven data science experience, strong Python and SQL skills, expertise in ML techniques and tools (CatBoost, XGBoost, TensorFlow, PyTorch, scikit-learn), experience with big data technologies (Spark, Hadoop), and an MSc or PhD in a related field. English proficiency at Intermediate/Upper-Intermediate level. Remote work option available with local city offices in Kyiv (UA) and Warsaw (PL); role is full-time and open to hybrid working arrangements.