Sr. Principal Data Scientist

Welcome to Warner Bros. Discovery… the stuff dreams are made of. Who We Are… When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content and beloved brands, are the storytellers bringing our characters to life, the creators bringing them to your living rooms and the dreamers creating what’s next… From brilliant creatives, to technology trailblazers, across the globe, WBD offers career defining opportunities, thoughtfully curated benefits, and the tools to explore and grow into your best selves. Here you are supported, here you are celebrated, here you can thrive. Your New Role : As a Sr. Principal Data Scientist, you will operate at the highest technical individual-contributor level at Warner Bros. Discovery—serving as a company-wide authority in advanced Data Science, Machine Learning, and Applied AI. This role is designed for an elite practitioner with 15–18+ years of experience, including 10–14 years of deep, hands-on expertise in Data Science, ML, and AI systems at enterprise scale. Unlike leadership or management roles, this position is purely an IC role, focused on technical depth, architectural rigor, and scientific excellence, without formal people-management responsibilities. You will design, architect, and deliver some of WBD’s most complex and business-critical AI systems, directly influencing how the company creates, distributes, personalizes, monetizes, and optimizes content across streaming, linear TV, advertising, and direct-to-consumer platforms. This is a hands-on, high-impact role for a technologist who thrives on solving unsolved problems, pushing the boundaries of applied ML, and translating advanced science into durable business advantage. 1. Enterprise-Grade Applied AI & ML Leadership (IC) Act as one of WBD’s  most senior technical ICs  in Data Science and Machine Learning. Lead the  end-to-end design and implementation  of advanced ML systems across: Content intelligence & metadata enrichment Audience modelling & personalization Forecasting, optimization, and experimentation Advertising intelligence & monetization analytics Set  technical direction and standards  for complex ML implementations without direct people management. 2. Advanced Modelling & Scientific Excellence Design and implement  state-of-the-art models , including: Large-scale recommender systems Time-series forecasting & probabilistic models Causal inference, experimentation & uplift modelling NLP, generative AI & multimodal ML systems Computer vision & video intelligence pipelines Apply rigorous statistical thinking, experimentation discipline, and scientific validation to all solutions. Serve as a  final technical reviewer  for high-risk or high-impact ML solutions. 3. Architecture of Scalable ML Systems Architect  production-grade ML systems  integrated with WBD’s cloud data ecosystem (AWS, Snowflake, GCP). Define best practices for: Feature engineering & feature stores Model lifecycle management & MLOps CI/CD for ML, model monitoring, and drift detection Reproducibility, governance, and responsible AI Partner deeply with data engineering, platform, and product engineering teams to ensure scalable, resilient delivery. 4. High-Impact Business Problem Solving Own and deliver  mission-critical AI solutions  across: Content performance prediction & ratings intelligence Marketing attribution & lifecycle analytics Search, discovery & ranking systems Ad load optimization & pricing intelligence Operational forecasting & automation Translate complex modelling outputs into  clear, executive-ready insights  that drive decisions. 5. Executive & Cross-Functional Influence (Without Line Management) Serve as a  trusted technical advisor  to senior leaders across Streaming, Content, Ad Sales, Marketing, and Technology. Communicate complex ML concepts with clarity and credibility to non-technical stakeholders. Influence enterprise AI roadmaps, architectural decisions, and investment priorities through expertise—not hierarchy. 6. Technical Mentorship & Community Leadership Mentor senior and staff-level data scientists through  technical guidance, design reviews, and deep problem-solving . Contribute to internal AI communities of practice, technical forums, and standards bodies. Elevate overall engineering and scientific rigor across the Data Science organization. Qualifications & Experiences: Master’s or Ph.D.  in Computer Science, Machine Learning, Data Science, Statistics, Mathematics, Operations Research, or related disciplines. 18–20 years  of total experience, with  13–15 years  in Data Science/ML, including hands-on technical leadership. Deep expertise in: Predictive modeling, optimization, and advanced ML techniques MLOps and large-scale model deployment Modern cloud ecosystems (AWS/GCP/Snowflake) Python, PyTorch, TensorFlow, SQL, ML frameworks Experiment design, causal inference, and statistical modeling Demonstrated experience in Media & Entertainment, streaming, digital advertising, or consumer intelligence. Strong track record of delivering enterprise-impact through AI solutions. Exceptional communication skills, including the ability to influence executives and inspire technical teams. Preferred Experience developing or customizing Large Language Models or multimodal foundation models. Patent, publication, or conference-track record in ML/AI. Experience with video intelligence, CV for media workflows, or content metadata systems. Experience partnering with product and engineering organizations in a fast-paced environment. How We Get Things Done… This last bit is probably the most important! Here at WBD, our guiding principles are the core values by which we operate and are central to how we get things done. You can find them at www.wbd.com/guiding-principles/ along