Data Scientist

Data Scientist - On-site - - Amsterdam , Noord-Holland , Netherlands - €3,800 - €6,200 per month - Core Team About the role and the Xomnia culture At Xomnia, data science is about solving meaningful challenges - not just building models, but delivering intelligence that performs at scale. As a Data Scientist specializing in Recommendation Systems & Personalization, you'll join a team of passionate consultants who thrive on using data to create lasting value. From personalized recommendation engines to causal impact analysis and reinforcement learning-driven decision systems, your work will span industries like e-commerce, media, finance, and more. Our culture is built on curiosity, shared ownership, and challenging the status quo - with room to grow, experiment, and make a real difference. Are you ready to take on this challenge? In this role, you'll lead end-to-end data science projects for our clients: from ideation and prototyping to model deployment and monitoring. Whether you're optimizing personalization algorithms, measuring causal business impacts, or mentoring clients on best practices, you'll combine consultancy skills and deep technical skill with practical impact. Your role - Translate business goals into scalable machine learning solutions. - Design, prototype, and productionize models that deliver measurable value. - Collaborate closely with data engineers, product teams, and stakeholders. - Design and deploy scalable recommendation systems. - Develop personalization strategies using learn-to-rank, bandit algorithms, and reinforcement learning. - Apply causal inference techniques to measure business impact. - Build production-ready systems using Python, cloud tools, and MLOps best practices. - Apply best practices in versioning, testing, and model monitoring. - Stay ahead of the curve by exploring new techniques in reinforcement learning, causal ML, and generative AI for recommendations. - Contribute to...