Staff/ Principal Data Scientist
The Role As a Staff/Principal Data Scientist at Tunnl , you will own the design and delivery of machine learning systems that power audience intelligence, targeting, and measurement across television and digital channels. You'll work at the intersection of data science and AdTech — building production-grade machine learning systems that directly shape how advertisers reach and measure their audiences at scale. This is a high-impact, senior IC role where your work will influence product direction and business strategy. What You'll Do Design, build, and deploy machine learning solutions for audience targeting, lookalike generation, and individual propensity scoring Own the complete ML lifecycle - from exploratory analysis and experimentation all the way through production deployment and operational monitoring Develop and ship production ML systems spanning self-supervised representation learning, vector similarity search, and supervised classifiers Leverage distributed computing (Spark/