Staff Data Scientist - Growth Alliance (f/m/x)

Your responsibilities, Decisioning, Modeling & Strategy, • Direct and evolve the data and modeling strategy behind customized journeys and funnel decisioning., • Direct complex feature engineering initiatives that improve decision quality, robustness, and scalability., • Design, implement, and evaluate machine learning approaches for large-scale personalization and routing decisions., • Define standards for model validation, monitoring, and experimentation to ensure long-term reliability and impact., , Technical Coordination & Strategy, • Act as a strategic technical resource for Product, Engineering, and Marketing, shaping how decisioning capabilities are embedded into the conversion funnels and experiences., • Drive alignment across technical workstreams on how personalization is measured, iterated, and scaled., • Provide technical frameworks for roadmap and prioritization decisions by framing problems in terms of data, impact, and trade-offs., • Contribute technical assessments to "build vs. buy" decisions related to data science tooling, platforms, and external solutions., , Platform & Enablement, • Define and evolve shared decisioning frameworks and data products used across Conversions and adjacent domains., • Ensure analytical solutions are production-ready, observable, and efficient to iterate on., • Provide high-level technical guidance to other data scientists, setting a high bar for analytical rigor and project impact., , AI & Automation, • Coordinate with engineering teams to bring these capabilities safely into production environments., • Explore how AI and automation can improve decisioning quality, experimentation velocity, and iteration speed. What we offer, 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).