Multilingual Data Annotation Specialist, Spanish

The role

You will label video, image, and metadata content across YouTube, TikTok, Meta, and Snap. You will use in-house tooling to apply contextual category guidelines and provide cultural fluency to machine learning training data.

What you will do

• Label social media content against Zefr's contextual category guidelines using in-house tooling.
• Make daily judgment calls on video, image, and metadata.
• Apply labeling frameworks and help sharpen them.
• Spot emerging trends and edge cases.
• Run root cause analysis on quality misses and turn findings into process changes.
• Perform lingual quality assurance across multiple project pipelines.

Required qualifications

• Oral, written, and cultural fluency in Spanish and English
• Strong cultural fluency and a feel for context across varied content types
• Regular user of TikTok, YouTube, Facebook, Instagram, and Snapchat
• Exceptional attention to detail
• Clear written communication
• Comfort applying style guides and holding consistency across formats
• Comfortable using AI tools such as Claude, Gemini, or ChatGPT
• Proficiency in Google Workspace
• Comfortable reviewing sensitive content, including political topics, religious perspectives, violence, and adult material
• Reliable and coachable
• Analytical, with structured problem-solving instincts
• Steady in a fast-paced environment with shifting priorities

Nice to have

• Background in annotation, content moderation, labeling, quality assurance, or policy enforcement
• SQL familiarity
• Additional languages — Portuguese, 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
• 10+ 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

About the company

Zefr is a global technology company enabling responsible marketing in walled garden social environments. The company uses patented AI technology to help brands manage advertising on YouTube, Meta, TikTok, and Snap.