Senior Data Scientist, Preply

• Minimum 4 years of previous experience as a Product Data Scientist focused on machine learning products
• Bachelor's degree in a relevant technical field
• Having a solid understanding of machine learning techniques, including linear regression, logistic regression, decision trees, random forests, gradient boosting
• Demonstrating proficiency in Python and SQL, with prior experience in ML frameworks such as sklearn, pandas, numpy, xgboost, lightgbm, etc.
• Experience and/or interest in extracting insights, identifying patterns, and uncovering trends from large datasets
• Exhibiting strong curiosity, problem-solving skills, and the ability to identify and address underlying problems
• Emphasizing a creative mindset and proactively engaging in the formation and evaluation of new hypotheses
• Possessing strong written and verbal communication skills in English

Desirable

• Building end-to-end ML solutions that drive tangible business impact
• Designing and analyzing AB experiments to improve model performance and user experience
• Conducting in-depth data analysis to extract meaningful insights and drive data-informed improvements on the ranking model
• Writing production code and developing pipelines when it is needed
• Collaborating closely with software engineers to understand system constraints and deliver effective solutions
• Working closely with product teams to identify user needs and leverage ML solutions to enhance the learning experience for both learners and tutors