Data Science Data Science Senior Data Scientist

We are a team of tech and data enthusiasts on a mission to bring together the best minds in IT and analytics. To build cutting-edge analytical hubs that empower our partners to become truly data-driven organizations. We are currently looking for a Senior Data Scientist to lead the design, development, and deployment of advanced analytical solutions within the Global Analytics Unit — a centralized, global team driving smart data products across all business areas. This is a high-impact role for someone who thrives on end-to-end ownership: from exploratory data analysis and model design, through refactoring and stability testing, to production deployment and performance monitoring. Tackle complex, real-world business challenges using advanced analytics and machine learning Work with an exceptional international team of Data Scientists, ML Engineers, and Data Engineers Operate in an environment that values autonomy, innovation, and technical excellence …Flexible working hours and remote/hybrid work model Private medical care and Multisport card As a Senior Data Scientist , you will take ownership of developing and productionizing advanced data science models and services. Your work will go far beyond notebooks — you’ll help design stable, reproducible, and automated ML pipelines. Lead end-to-end data science projects , from problem framing and data exploration to deployment and monitoring Develop, refactor, and productionize robust data preprocessing pipelines for increased stability and scalability Design and implement comprehensive model stability testing frameworks , including: Work closely with Data Engineers and MLOps Specialists to deploy models into production using Azure-based infrastructure Refactor and optimize data pipelines and REST services to ensure scalability and low-latency performance 5+ years of professional experience in Data Science or ML Engineering, including production deployments ~ MSc or PhD in Computer Science, Statistics, Mathematics, Physics, or related technical field ~ Strong Python programming skills , including software engineering practices (OOP, modular code design, testing) ~ Solid experience with ML frameworks and NumFOCUS stack : pandas, scikit-learn, SciPy, Matplotlib, NumPy ~ Hands-on experience with PySpark and large-scale data processing ~ Familiarity with Azure cloud ecosystem (Databricks, ML Studio, Data Factory, Azure DevOps) ~ Experience designing robust validation and monitoring strategies for ML models in production ~ Fluency in English (spoken and written), as you’ll collaborate globally Nice to have Familiarity with DBT for data transformation Exposure to multi-tenant or global-scale data systems We’re looking for a Senior Data Scientist who’s not just great at modeling — but who writes clean, production-ready Python, builds pipelines that last, and obsesses over model robustness, automation, and stability. I hereby agree to the processing of my personal data included in my job offer by hubQuest spółka z ograniczoną odpowiedzialnością located in Warsaw for the purpose of the current recruitment process.” I also agree to the processing of my personal data for the purpose of future recruitment processes.”