Zefr
A Senior Data Scientist at Zefr works on researching and productionalizing Large Language Models for understanding multimodal social media content. The role involves fine-tuning, optimizing, and deploying LLMs to analyze vast amounts of data from major platforms.
Headquarters
Los Angeles, California, United States
Company Size
201-500 employees
Founded
2009
Zefr is a leading technology company specializing in AI-powered content classification for digital advertising, focusing on brand safety and suitability in complex social platforms. With patented AI technology, Zefr processes billions of content types daily to ensure brands' advertising effectiveness while upholding social responsibility and compliance. The company's solutions enable effective targeting and post-campaign verification, making them an essential partner for brands navigating the digital landscape. Zefr is committed to delivering transparency and innovative solutions, which positions them at the forefront of the brand suitability market.
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for Zefr.
44% above the average for this role
Zefr’s Richard Raddon is cleaning up social media for brands
May 19, 2025
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