Data Scientist

What started in a small but vibrant office in Los Angeles has now evolved into Zefr, a global leader in brand suitability targeting and measurement. Established in 2009, Zefr was co-founded by Rich Raddon and Zach James, who shared a vision to enhance digital advertising's responsibility. Over the years, Zefr has transformed from a nascent startup into a powerhouse that powers brand safety across the complex landscapes of social media platforms.

Zefr's technology is fundamentally built for walled gardens, meticulously analyzing over 5 billion pieces of content daily to ensure that brand advertising meets rigorous safety and suitability standards. By utilizing advanced AI and machine learning, Zefr provides advertisers with critical insights into content adjacency, allowing brands to connect with their target audiences in a meaningful and ethical manner. This commitment to accountability not only serves the needs of advertisers but also safeguards the interests of viewers, ensuring that everyone in the digital ecosystem has a more transparent and responsible experience.