Who we are: Chartboost is the leading in-app monetization and programmatic advertising platform. We reach a global audience of over 700 million monthly active users and process over 2.7 trillion monthly advertising auctions. The Chartboost SDK is one of the most widely integrated mobile ad SDKs, and through the Chartboost Exchange, Ad Network, DSP, and other services, we empower mobile app developers to build businesses while connecting advertisers to highly engaged audiences.
We're looking for an exceptional Data Scientist to join our real-time bidder team, one of the most exciting and important products within Chartboost. This role will be focused on ad ranking, which ensures that our DSP is bidding on the most promising inventory for our advertisers. The system powering this product must deal with 100,000's of requests per second and presents unique data science challenges. The bidder uses a variety of batch and real-time signals to power decision-making in real-time.
Impact you will make: Apply, develop, optimize, and benchmark ML approaches to push our AI-driven product forward.Conduct large-scale A/B testing and offline/online experiments to evaluate the performance of machine learning models.Analyze millions of structured and unstructured data points and identify meaningful signals to improve model performance.Collaborate closely with Product, Data, and Engineering teams to build new features and enhance model infrastructure.Who you are: BS degree in Statistics, Math, Machine Learning, or Computer Science.5+ years of practical experience in data science or machine learning roles.Experience with recommendation systems or ML for ranking and relevance.Exposure to different machine learning and modeling techniques, including deep learning and traditional modeling techniques.Experience using SQL and distributed frameworks such as Spark for exploratory data analysis and data transformation.The following experience would be a plus: Hands-on experience with deep learning in production pipelines.Experience in the ad tech and/or mobile space.Perks: Competitive salary with bonuses.Flexible schedule based on core hours and the possibility of working remotely.Private health insurance.Life insurance.Optical complement for glasses or contact lenses.Company sponsored lunch.English/Spanish lessons and/or other investments in your professional development.Gym membership.Transportation reimbursement.Healthy snacks and coffee in our cool office in the center of Barcelona.23 days of paid time off per year.15 paid holidays per year.Team building events.More about us: We are proud of the product we've built and appreciate the impact it has on other people's businesses and lives. We want to be surrounded by people who are always finding opportunities to try something new and grow. We love data and anything that helps drive intelligent decisions and always design with the user in mind.
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