Key Skills

Software

Appen

OneForma

Other

Top Subject Matter

LLM evaluation in Spanish

Data labeling in Spanish and English

Data annotation

Top Data Types

Audio

Image

Text

Top Task Types

Classification

Data Collection

Emotion Recognition

Evaluation Rating

Question Answering

Freelancer Overview

With 4+ years of experience in search engine evaluation and multilingual data labeling, I specialize in improving AI model accuracy through precise dataset curation and bias mitigation. My work focuses on bridging human communication with machine learning systems. Core Expertise: - ✅ **Text/Audio Annotation**: NLP datasets, LLM fine-tuning - ✅ **Search Quality Evaluation**: 1,000+ weekly queries rated (98% accuracy) - ✅ **Bilingual Projects**: Spanish/English translation for AI training - ✅ **QA Testing**: Identifying algorithmic biases in ML models Key Achievement: - Boosted Spanish-language search result relevance by 30% through systematic bias detection. Open to collaborating on AI training projects and multilingual data initiatives.

Labeling Experience

Text annottator

AppenTextText GenerationTranslation Localization

Annotated and categorized text data to support machine learning and NLP model development. Labeled entities, sentiment, intent, and other linguistic features according to project-specific guidelines. Worked with diverse datasets, including chat transcripts, user queries, and product reviews. Ensured high annotation accuracy and consistency through careful guideline application and quality checks. Used internal annotation tools and platforms to complete tasks efficiently and meet productivity targets.

Annotated and categorized text data to support machine learning and NLP model development. Labeled entities, sentiment, intent, and other linguistic features according to project-specific guidelines. Worked with diverse datasets, including chat transcripts, user queries, and product reviews. Ensured high annotation accuracy and consistency through careful guideline application and quality checks. Used internal annotation tools and platforms to complete tasks efficiently and meet productivity targets.

2020 - 2024

Audio data labeler

AppenAudioEvaluation RatingData Collection

Labeled and transcribed audio data for AI and speech recognition training. Worked on multiple projects involving segmentation, speaker identification, and audio quality tagging.

Labeled and transcribed audio data for AI and speech recognition training. Worked on multiple projects involving segmentation, speaker identification, and audio quality tagging.

2020 - 2024

Education

Work History