Joanna Mata

• Annotates large-scale image and video datasets to support machine learning model training and validation
• Identifies and labels entities, objects, actions, scenes, and temporal key frames using structured annotation schemas
• Evaluates AI-generated outputs for accuracy, consistency, and alignment with task specifications
• Applies rigorous quality assurance protocols, flagging edge cases, ambiguities, and annotation errors
• Interpretes evolving technical guidelines and adapts annotations accordingly while maintaining high precision
• Maintains productivity and accuracy in high-throughput, deadline-driven environments
• Reviews translations for accuracy, fluency, and cultural appropriateness to help improve the quality of AI language systems
• Reviews AI-generated Polish content and provides structured feedback to improve linguistic quality, clarity, and consistency
• Identifies mistranslations, awkward phrasing, or tone inconsistencies
• Provides recommendations regarding potential edits that reflect idiomatic and contemporary Polish usage
• Provides detailed written feedback on grammar, style, and terminology

1 year - Mercor - Data Annotation Expert for projects: Musen & Nova

1 year - Language Bilingual Expert POL - EN

10 years - m/Oppenheim Group - Research, Database & Special Projects Team Lead

M.A. in Political Science - Northeastern Illinois University

M.A. in International Relations - University of Warsaw, Poland