Senior Data Scientist - Performance

About Vibe Streaming TV is no longer just a brand awareness channel. It's becoming a core part of the performance marketing mix, alongside search and social. Vibe.co is building the platform that makes TV work like the rest of the acquisition stack: targeted, measurable, and optimized for results. Vibe.co is an Audience First Streaming TV Advertising platform that gives marketers the tools to reach the right audiences, optimize campaigns in real time, and understand what's actually driving business outcomes. With hyper-targeted segmentation, AI-powered recommendations, real-time optimization, and incrementality measurement, Vibe brings the precision and accountability of digital advertising to the biggest screen in the house. Today, more than 12,000 brands use Vibe.co to reach 120 million+ households. And in August 2026, Vibe.co became a Walmart company, opening up a new chapter for the business and the industry. With Walmart's first-party data and purchase signals now part of the Vibe platform, advertisers can connect TV advertising to real-world transactions and measure the impact of CTV with a level of precision previously associated with platforms like Google and Meta. This is a unique moment to join Vibe. With Walmart's scale, data, and reach behind us, we're building the next generation of TV advertising and creating a more measurable, performance-driven future for the channel. About the Role You'll join the Performance team, the group that owns advertiser outcomes at Vibe end to end, from prediction models to bidding to the delivery stack that puts both into production. You'll report to the Head of Performance. This role exists because the modeling roadmap has outgrown current bandwidth, right as the scale and diversity of data available to the team is about to grow significantly. CTV performance advertising is still being invented: cross-device attribution and identity graphs linking TVs to households look nothing like web display or search, so there's no playbook to copy here, you'd be writing it. You'll work with data few data scientists ever touch, joining CTV signal with real-world purchase and behavioral data in ways that change how the team measures, attributes, and trains. Vibe is growing fast enough that the model architecture is still yours to shape, and established enough that your work ships to real advertisers and shows up in the numbers within weeks. What You'll Do Own the Prediction Stack Improve the unified multi-task model predicting visits, purchases, and other outcomes simultaneously Design shared representations so model heads learn from each other across sparse conversion funnels Take ideas from exploration to production, covering dataset design, architecture, training, and deployment Debug production models for gradient issues, convergence failures, drift, and regression Partner with Performance engineers building the serving and bidding infrastructure Build the Data Foundation Design new features from raw signal, inc