LeethubLeethub
JobsCompaniesBlog
Go to dashboard

Leethub

Curated tech jobs from FAANG and top companies worldwide.

Top Companies

  • Google Jobs
  • Meta Jobs
  • Amazon Jobs
  • Apple Jobs
  • Netflix Jobs
  • All Companies →

Job Categories

  • Software Engineering
  • Data, AI & Machine Learning
  • Product Management
  • Design & User Experience
  • Operations & Strategy
  • Remote Jobs
  • All Categories →

Browse by Type

  • Remote Jobs
  • Hybrid Jobs
  • Senior Positions
  • Entry Level
  • All Jobs →

Resources

  • Google Interview Guide
  • Salary Guide 2025
  • Salary Negotiation
  • LeetCode Study Plan
  • All Articles →

Company

  • Dashboard
  • Privacy Policy
  • Contact Us
© 2026 Leethub LLC. All rights reserved.
Home›Jobs›Zefr›Data Scientist
Zefr

About Zefr

Contextual targeting for smarter video advertising

🏢 Tech👥 251-1K📅 Founded 2009📍 Venice, California, United States

Key Highlights

  • Headquartered in Venice, California
  • Over $100 million raised in funding
  • Specializes in contextual targeting for YouTube
  • Serves major brands in entertainment and consumer goods

Zefr is a video advertising technology company headquartered in Venice, California, specializing in contextual targeting solutions for brands on platforms like YouTube. With a focus on enhancing brand safety and audience engagement, Zefr serves a diverse clientele, including major brands in the ente...

🎁 Benefits

Zefr offers competitive salaries, equity options, flexible PTO, and a remote work policy that supports a healthy work-life balance....

🌟 Culture

Zefr fosters a culture of innovation and collaboration, encouraging employees to explore new ideas in the rapidly evolving video advertising landscape...

🌐 Website💼 LinkedIn𝕏 TwitterAll 11 jobs →
Zefr

Data Scientist

Zefr • Tel Aviv, Israel

Posted 12h ago🏛️ On-SiteMid-LevelData scientist📍 Tel aviv
Apply Now →

Skills & Technologies

PythonSQLNatural language processingComputer visionMachine learning

Overview

Zefr is hiring a Data Scientist to focus on algorithm development and implementation of natural language processing and computer vision models. You'll work with Python and SQL to build sophisticated AI systems. This role requires a strong background in machine learning and data science.

Job Description

Who you are

You have a solid background in data science, particularly in algorithm development and implementation of natural language processing and computer vision models. You are comfortable working with state-of-the-art transformer models, large language models, and vision language models, applying them to analyze tens of millions of social media posts daily. Your experience includes leveraging vector databases to perform semantic and image similarity searches, and you understand the balance between cost and quality in developing high-performing classifiers. You are passionate about keeping up with the latest advancements in machine learning and computer vision, and you thrive in collaborative environments where learning is mutual. You are based in Israel and are looking for an opportunity to contribute to a leading technology company.

Desirable

Experience with AI technologies and a strong understanding of the data science landscape will be beneficial. Familiarity with working in social media environments and knowledge of content adjacency frameworks will set you apart. You are encouraged to apply even if you do not meet 100% of the qualifications.

What you'll do

As a Data Scientist at Zefr, you will be responsible for developing and implementing advanced algorithms that utilize natural language processing and computer vision techniques. You will work closely with a team of engineers and researchers to build sophisticated AI systems that enhance brand marketing strategies in social media environments. Your role will involve analyzing vast amounts of data from social media platforms, ensuring that the models you develop are both accurate and efficient. You will also be expected to contribute to the ongoing research and development efforts within the company, staying abreast of the latest trends and technologies in the field of data science. Collaboration with cross-functional teams will be key as you work to integrate your models into Zefr's existing technology stack.

What we offer

Zefr provides a dynamic work environment where innovation is encouraged. You will have the opportunity to work with cutting-edge technologies and contribute to projects that have a significant impact on the marketing industry. We offer competitive compensation and benefits, along with a culture that values diversity and inclusion. Join us in our mission to empower brands with responsible marketing solutions in the evolving landscape of social media.

Interested in this role?

Apply now or save it for later. Get alerts for similar jobs at Zefr.

Apply Now →Get Job Alerts