Senior Data Scientist

OfferUp is changing how people buy and sell locally by making it as easy as taking and sharing a photo from your phone. We are a rapidly growing team in Seattle looking to bring on more passionate, motivated, and curious people who want to be a part of our fast growing marketplace.

We have an exciting opportunity to join our Data team as a Data Scientist. The right candidate will have a passion for manipulating and using new and existing data sources to help drive actionable recommendations. We seek to delight our users with the safest, simplest and most effective local marketplace app on the planet. Your role as a Data Scientist will be to research, design, implement and evaluate machine learning models and algorithms to make our products more intelligent.

* Design and measure experiments to test in various cross-functional areas to challenge hypotheses and come up with actionable recommendations. * Identify and perform deep analysis in specific business areas (crime risk modeling, user reputation, product search, personalization, recommenders etc.) * Develop end-to-end experimentation-driven product improvements from conception/research, to offline testing, then live A/B testing and finally shipping to production. * Act as an analytics advisor to solve business problems using data. * Discover new areas of impact across the company * Leverage the latest machine learning trends including deep learning to solve challenges in image modeling, text processing, search, instant messaging, and many more areas. * A passion for working with large data sets is a must. * Ability to mentor new Data Scientists

**Requirements:** * 6+ years of demonstrated experience as a Data Scientist or similar * PhD or Master’s Degree in Computer Science, Mathematics, Statistics or a technical related field * Expertise around programming languages like Java, Python (or willing to learn quickly) * Hands on experience in predictive modeling and analyses * Strong analysis, problem solving, data structures and algorithm development background * Must be eligible to work in the United States **Nice to Have:** * Experience working in e-commerce and mobile marketplaces * Some experience in some the following: entity extraction, semantics in text, image recognition, recommender systems, ranking, LDA, classification