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Data Annotator Russian Market (Lisbon Onsite)

Thoth AI Portugal


Job Location:

Lisbon - Portugal

Monthly Salary: EUR 950 - 950
Posted: 24 July 2026 (30+ days ago)
Application Deadline: 21 October 2026
Vacancies: 1 Vacancy

Job Summary

Thoth AI is a cutting-edge data solutions company specializing in AI training data content moderation and linguistic services. We collaborate with global tech leaders to improve machine learning models and enhance user experiences across digital platforms. Weve recently opened our new office in Lisbon and were excited to grow our team in a city known for its vibrant culture and international talent.

We are seeking diligent and detail-oriented Data Annotators fluent in Russian to support a world-renowned short-video platform. Your work will directly contribute to improving content quality and user experience by helping train AI models to recognize and categorize ambiguous or low-quality content.

Key Responsibilities:

  • Assess the quality of audio transcript based on predefined quality criteria
  • Accurately label content into specific poor-quality categories for model training
  • Meet daily quality and quantity targets set by the Project Manager
  • Adapt to evolving guidelines and project updates
  • Maintain a high level of attention to detail and responsibility

Requirements:

  • Native or fluent Russian speaker
  • Good command of English (minimum B2 level)
  • Background in linguistics or experience in language teaching is a strong plus
  • At least 6 months experience in data annotation or content moderation.
  • Strong attention to detail and ability to support team improvement

Benefits:

  • Base Salary: 950/ month
  • Schedule: Monday to Friday 9:00 AM 6:00 PM (40 hours/week)
  • Opportunity to work with a global tech client
  • Supportive and inclusive team culture in a newly established Lisbon office

At Thoth AI we foster a familiar and supportive work environment where every team member is valued and encouraged to grow.