Machine Learning Engineer
ZefrTel-Aviv, Tel-Aviv District, Israel • Los Angeles, California, United States
Posted October 29, 2025
Full Time
About the Company
Zefr is a global technology company specializing in responsible marketing for social media platforms. They offer a range of services including contextual video targeting, programmatic video, data analysis, brand suitability verification, and optimization tools for platforms like Meta, TikTok, and YouTube. Zefr's key value proposition lies in ensuring brand safety and effective advertising within walled garden environments.
Job Description
Zefr is a leading global technology company enabling responsible marketing in walled garden social environments. They focus on AI-powered solutions for social walled gardens, helping brands manage content and improve accuracy. The company is seeking a Machine Learning Engineer to develop and implement NLP and computer vision models, working with cutting-edge models like transformer, large language models, and vector search to build sophisticated AI systems.
Requirements
- Bachelor's or Master's degree in Computer Science or related field
- Strong Data Science background
- Fluency with Python and SQL (specifically Snowflake)
- Experience with Large language models, vector search and RAG systems
- Strong foundation in data structures, algorithms and software design
- Strong verbal and written communication skills
- Openness to new technologies and creative solutions
