Senior Data Scientist - AdTech Tribe - Growth Alliance (m/f/d)

Nasze wymagania: Proven track record of scientific work in your Bachelors, Masters or PhD in statistics, physics, economics, mathematics, data science or similar. Long-term (3+ yrs) work experience as a (senior) data scientist, preferably in an e-commerce environment Strong marketing domain knowledge as well as experience with in the Google Search ecosystem and attribution models are a huge plus In-depth knowledge how to interpret experiment results, how to handle statistical uncertainties and how to apply statistical models such as regressors and classifiers Experience with forecasting algorithms, portfolio optimization approaches, as well as Vector Autoregression Fluency and long-term experience in Python, including high familiarity with its scientific stack such as Numpy, Pandas, Scikit-learn, Matplotlib, etc. (experience in Databricks is a plus) Ability to retrieve (using SQL), manipulate and analyse large, heterogeneous datasets and build data pipelines Familiarity with software development practices and tools (Git, Docker, AWS) You love to learn, are a critical thinker and creative problem solver who strives for excellence You are a team player who loves to collaborate and work with stakeholders from different backgrounds in an international environment Exceptional communication and collaboration capabilities. Zakres obowiązków: Collaborate as an integral part of an amazing and fun team consisting of highly skilled data scientists and engineers. Collaborate closely within cross-functional teams (engineering, product, marketing) to translate business objectives into concrete, data-driven strategies. Take responsibility for the delivery and execution of scientific optimization models and algorithms, from data collection to operationalization, and closely align them with non-technical stakeholders. Experiment and explore opportunities to constantly improve and refine technical approaches. Leverage statistical analysis and machine learning algorithms in development and production to enhance incrementality measurement solutions. Think out of the box to come up with new ways to improve the data products delivered to stakeholders. Oferujemy: Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit).