Data Scientist - Remote
About The Company Reddit is a vibrant online community that hosts a vast array of interest-based forums, known as subreddits, where users share, discuss, and engage on topics they are passionate about. Built on the principles of openness, authenticity, and trust, Reddit fosters a unique environment for meaningful conversations and community building. With over 100,000 active communities and approximately 126 million daily active visitors, Reddit stands as one of the largest and most influential sources of information and social interaction on the internet. The platform continually evolves to enhance user experience and advertiser engagement, maintaining its position as a leader in social media and digital content. For more information, visit www.redditinc.com. About The Role Reddit’s Ads Data Science team is seeking a highly experienced Staff Data Scientist to lead initiatives that power the advertiser experience on Reddit. In this strategic role, you will take full ownership of high-impact projects within the advertising ecosystem, focusing on measurement, identity resolution, and signal quality. Your expertise will influence the strategic direction of Reddit’s advertising technology, setting a high technical standard and driving cross-functional collaboration across engineering, product, and sales teams. This position offers a unique opportunity to shape the future of digital advertising by developing innovative models and methodologies that improve measurement accuracy, signal utilization, and overall ad performance. As a key member of the team, you will mentor others, champion best practices, and contribute to the company's growth and innovation in the advertising space.
Qualifications
Advanced degree (Master's or Ph.D.) in Statistics, Mathematics, Physics, Economics, or Operations Research For M.S. holders: 10+ years of industry experience in applied science or data science roles For Ph.D. holders: 6+ years of industry experience in applied science or data science roles Deep understanding of the advertising ecosystem and digital marketing metrics Demonstrated expertise in measurement and experimentation at scale, including lift and attribution methodologies Experience in identity graph creation, resolution methodologies, and infrastructure development Proficiency in predictive modeling with signal loss considerations Advanced skills in statistical programming languages such as Python or R, and SQL Experience with machine learning, optimization techniques, and causal inference methodologies Strong problem-solving skills and the ability to communicate complex concepts effectively Experience working in fast-paced, ambiguous environments with cross-functional teams
Responsibilities
Design and develop probabilistic models for identity resolution, linking on-platform and off-platform actions while respecting privacy constraints Lead the advancement of lift methodologies and experimentation frameworks, supporting large-scale and high-velocity testing for advertisers Define strategies for incorporating new signal sources, mathematically quantify their value, and integrate them into predictive models to enhance bidding efficiency and return on ad spend Establish ground truth and evaluation frameworks to validate identity and measurement models, designing objective functions and truth sets for training and assessment Collaborate deeply with engineering, product, and sales teams to align on strategic goals, translate insights into actionable initiatives, and drive execution Mentor team members, set high technical standards, and promote best practices across modeling, experimentation, and measurement disciplines Stay abreast of industry trends and emerging technologies to continually improve measurement accuracy and signal quality
Benefits
Comprehensive healthcare benefits including medical, dental, and vision insurance Income replacement programs and 401(k) with employer match Global benefit programs supporting professional development, caregiving, and work-life balance Family planning support and gender-affirming care Mental health and coaching benefits Flexible vacation policies and paid volunteer time off Generous paid parental leave Equal Opportunity Reddit is committed to fostering an inclusive and diverse workplace. We are an equal opportunity employer and do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We provide reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the application and interview process. We believe that a diverse workforce enriches our community and drives innovation, and we welcome applicants from all backgrounds to join our team.