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Senior Data Scientist at Inbybob. Location Information: Poland - Remote. . In this role, you will lead the development of advanced segmentation and classification models, deploying scalable machine learning (ML) solutions across a vast network of business entities.. Responsibilities. . Design, implement, and optimize machine learning models for clustering, classification, and risk-based segmentation. . Process and analyze complex transactional datasets, enhancing model performance and scalability. . Conduct advanced statistical modeling, scenario tuning, and parameterization activities. . Work extensively with Apache Spark (including internals), Python, and Git to develop, test, and operationalize solutions. . Collaborate closely with data engineering and business teams to ensure smooth integration and continuous model refinement. . Requirements. . Master's degree in Data Science or a related discipline. . 7+ years of hands-on experience in ML/AI model development following completion of the master's degree. . Deep understanding of clustering and classification algorithms. . Experience working with structured transactional or behavioral data. . Proficiency with Apache Spark (including internals), Python, and Git. . Strong communication skills in English (written and verbal). . Experience in financial services, banking, or large-scale transactional environments is a plus. . English. B2+ (Upper-Intermediate or higher). . Type of Work. ‍. . Remote. . Full-Time. . Time zone. Central European Time. .