Data Annotation & LLM Evaluation in Portuguese (Freelance / Self-Practice)
TextText Generation
Developed high-quality Portuguese-language datasets for LLM training and evaluation. Performed text classification, sentiment analysis, entity recognition (NER), and response ranking (RLHF-style). Annotated over 2,500 samples with strict adherence to detailed guidelines. Focused on cultural nuances of Angolan/Brazilian Portuguese, achieving 96%+ inter-annotator agreement in quality checks. Used tools such as LabelStudio and platform interfaces (Remotasks/Outlier-style). This experience improved my precision in multilingual data annotation and prepared me for production-level AI projects.
Developed high-quality Portuguese-language datasets for LLM training and evaluation. Performed text classification, sentiment analysis, entity recognition (NER), and response ranking (RLHF-style). Annotated over 2,500 samples with strict adherence to detailed guidelines. Focused on cultural nuances of Angolan/Brazilian Portuguese, achieving 96%+ inter-annotator agreement in quality checks. Used tools such as LabelStudio and platform interfaces (Remotasks/Outlier-style). This experience improved my precision in multilingual data annotation and prepared me for production-level AI projects.
2025 - Present