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Multilingual Data Annotation Specialist

Zefr· Data Science
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Hybrid (Marina del Rey, CA), Hybrid (New York City, NY), Hybrid (Chicago, IL)$69.5k - $74.5kFull-timePosted 1mo ago

About the role

We are hiring a Multilingual Data Annotation Specialist to support the training and performance of Zefr’s AI systems. You will annotate videos, images, and metadata across major social platforms, ensuring high-quality labeled data to improve content understanding and safety. This role emphasizes nuanced judgment, process improvement, and collaboration in a hybrid, fast-paced environment.

Responsibilities

  • Use internal tools to label social media content according to Zefr’s contextual category guidelines.
  • Conduct daily annotation and quality evaluation across video, image, and metadata formats.
  • Apply cognitive and cultural nuance when making judgment calls on complex or sensitive content.
  • Interpret, apply, and help refine labeling frameworks and documentation.
  • Identify emerging trends or edge cases and surface potential issues to stakeholders.
  • Conduct root cause analyses to identify opportunities for improving content quality.
  • Provide insights on content patterns and contribute to enhancements of the labeling interface.
  • Generate weekly reports with findings and quality recommendations.
  • Perform quality assurance across multiple project pipelines.
  • Maintain up-to-date knowledge of Zefr policies and proactively suggest optimization opportunities.
  • Gain foundational exposure to machine learning concepts and develop an understanding of how high quality annotation data powers AI systems.

Qualifications

  • Professional experience in annotation, content moderation, labeling, quality assurance, or policy enforcement.
  • Strong cultural fluency and ability to interpret contextual nuance across varied content types.
  • Familiarity with major social media platforms including TikTok, YouTube, Facebook, Instagram, and Snapchat.
  • Exceptional attention to detail with the ability to perform repetitive tasks with consistency and accuracy.
  • Strong written communication skills, particularly in explaining ambiguity, inconsistencies, or definitional drift.
  • Ability to apply style guides and enforce consistency across diverse content formats.
  • Experience using AI tools such as Claude, Gemini, ChatGPT, or similar technologies.
  • Proficiency in Google Workspace applications.
  • Familiarity with SQL is a plus.

Skills

Required:Fluency in English and Hindi
Nice to have:Additional language proficiency (Spanish, Mandarin, Turkish, Tagalog, or others)

Benefits

  • Flexible PTO
  • Medical, dental, and vision insurance with FSA options
  • Company-paid life insurance
  • Paid parental leave
  • 401(k) with company match
  • Professional development opportunities
  • 13 paid holidays off
  • Flexible hybrid work schedules
  • Summer Fridays (shorter work days on select Fridays during the summertime)
  • In-office lunches and lots of free food
  • Optional in-person and virtual events (we like to celebrate!)
Last updated Sep 3, 2026. Interested? Apply on the company site.
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