Data Scientist
Há 6 dias
As a Data Scientist on our Decision Science team, your mission is to design and optimize intelligent systems that power core product experiences. You'll transform rich data into models that drive automation, personalization, and smart decision-making at scale. This role blends applied science and analytics, focused on building adaptive ML systems that evolve continuously and make a tangible impact. The Decision Science teamWe work across the ML spectrum – from traditional statistical models to cutting-edge agentic systems We collaborate with distributed, cross-functional teams of Engineers, Data Scientists, and Analysts in a culture that values open discussion and intellectual honesty We experiment with emerging techniques to push the boundaries of real-world AI capabilities and system optimization We value curiosity and ownership – the mindset of a researcher with the maturity to own both problems and outcomes What You'll DoDesign and optimize ML models that power core product experiences and drive business outcomes Develop statistical frameworks for A/B testing, performance monitoring, and measuring model effectiveness Research and implement cutting-edge techniques to enhance model accuracy, speed, and reliability Collaborate with product teams to optimize user experiences and translate insights into business strategy Build evaluation pipelines to continuously monitor and improve model performance in production What You'll NeedStrong statistical and ML foundation with experience in experimental design, hypothesis testing, and model optimization Python proficiency with data science libraries (pandas, scikit-learn, numpy, scipy) Machine learning expertise across supervised, unsupervised, and reinforcement learning approaches SQL skills for data extraction, analysis, and feature engineering Communication skills to translate analytical findings into clear business insights Ability to communicate and debate in English and Portuguese Nice to HaveApp optimization experience with multi-armed bandits (MAB), recommendation systems, or personalization algorithms Analytics platform experience with tools like Amplitude, Rudderstack, or similar product analytics platforms MLOps familiarity with tools like MLflow for model tracking and experimentation Experience with Google Cloud Platform and BigQuery for large-scale data analysis Agentic frameworks experience with LangChain or similar tools for AI system development Recruiting process outlineOnline assessment: An online test to evaluate your analytical skills and statistical reasoning Technical interview: Deep dive into your ML experience and problem-solving approach Cultural interview If you are not willing to take an online quiz and work on a test case, do not apply. Diversity and inclusionWe believe in social inclusion, respect, and appreciation of all people. We promote a welcoming work environment, where each CloudWalker can be authentic, regardless of gender, ethnicity, race, religion, sexuality, mobility, disability, or education. #J-18808-Ljbffr
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