Zefr

Data Scientist

• We are hiring a Senior Data Scientist focused on the research and productionalization of Large Language Models for multimodal social media content understanding.
• Work with multi-terabytes of social media platform data from TikTok, YouTube, Facebook, Instagram, and Snap.
• Fine-tune, optimize, and deploy LLMs that understand what hundreds of millions of videos, images, and text posts are about.
• Span the full lifecycle — from research and prototyping to production-grade serving at scale.
• Build sophisticated compound AI systems that combine multiple models and modalities into reliable, scalable pipelines.

Senior Data Scientist

Sales

• Develop a high-volume of cohesive and creative sales proposals, case studies, product one-sheets, and other sales enablement materials that that drive revenue while maintaining Zefr’s brand voice
• Collaborate closely with sales leads, product leads, research team leads, and Account Services teams to ensure Zefr’s marketing’s voice and product positioning is clear throughout the pre-sales process and all collateral
• Partner with in-house design team to produce best in best-in-class collateral that is in alignment with our brand guidelines
• Conduct competitive and industry research across major verticals, platforms, and trends to assess campaign strategies and best practices
• Help manage and organize internal marketing resources and document library across Marketing and Sales teams
• Support in-market sales meetings to develop thoughtful client facing strategies and collateral
• Understand the full suite of Zefr products and services to identify and deliver on opportunities for additional Zefr-driven value
• Help the world's largest brands achieve their advertising goals

Senior Data Scientist

Senior Sales Marketing Manager