Senior Data Scientist, Marketplace

📋 Description Partner with engineers, PMs, and business partners to frame problems and roadmaps Perform exploratory data analysis to understand the problem and marketplace Develop, fit, and evaluate time series forecasting and ML models Write production code; collaborate with software engineers to scale models Design backtests and live experiments; analyze results to inform launches Define and monitor model health; build tooling to improve operational efficiency 🎯 Requirements MS or PhD in statistics, mathematics, economics, OR, CS, or related field 5+ years in a technology company with a product Proven time series forecasting and ML model experience in real-time/large-scale prod Strong ML fundamentals: feature engineering, evaluation, bias-variance Proficiency with Python and modern ML libraries; production coding End-to-end data experience: querying, aggregation, analysis, visualization Passion for solving unstructured mathematical problems Strong written/verbal communication; ability to align stakeholders with data 🎁 Benefits Great medical, dental, and vision insurance options Mental health benefits Family building benefits Child care and pet benefits 401(k) with company match PTO: discretionary for salaried; 15 days for hourly 18 weeks paid parental leave Subsidized commuter benefits Monthly Halcyon Labs credits and Halcyon Labs Pink membership