Yousef Yousef

Key Skills

Software

Appen

Clickworker

Data Annotation Tech

Toloka

Scale AI

Lionbridge

Top Subject Matter

No subject matter listed

Top Data Types

Document

Image

Text

Top Task Types

Evaluation Rating

RLHF

Text Generation

Text Summarization

Translation Localization

Freelancer Overview

Experienced AI Annotator and Prompt Engineer with proven expertise in NLP dataset annotation, multilingual data training, and quality assurance across diverse AI systems. Over 7 years of hands-on experience in linguistic data processing, including syntactic and semantic tagging for machine learning models, search relevance optimization for e-commerce algorithms, and comprehensive quality control using industry-standard LQA protocols. Demonstrated track record of maintaining 98% approval rates while processing over 120,000 words of multilingual content, with specialized expertise in Arabic-English language pairs and cross-cultural AI training data. Distinguished by unique combination of linguistic precision and technical AI understanding, with direct experience in prompt engineering for large language models and systematic error identification across 1,500+ annotations. Proven ability to research and compile domain-specific terminology, improve project accuracy by 30% through meticulous verification processes, and maintain consistency across large-scale annotation projects. Native Arabic proficiency paired with advanced English skills provides valuable perspective for global AI training initiatives, while established workflow optimization techniques have consistently improved annotation efficiency by 20-25% across multiple platforms and project types.

Labeling Experience

Arabic-English Medical Translation Quality Assessment

LionbridgeAudioClassificationEmotion Recognition

Annotated Arabic and English audio recordings for speech recognition AI training. Classified speaker emotions, accents, and audio quality across 3,000+ recordings. Identified background noise, speech clarity issues, and cultural speech patterns. Maintained 95% accuracy in multilingual audio classification projects.

Annotated Arabic and English audio recordings for speech recognition AI training. Classified speaker emotions, accents, and audio quality across 3,000+ recordings. Identified background noise, speech clarity issues, and cultural speech patterns. Maintained 95% accuracy in multilingual audio classification projects.

2024 - 2025

Multilingual Content Moderation and Safety Classification

AppenVideoEntity Ner ClassificationAction Recognition

Annotated human actions in surveillance and training videos for AI behavior recognition systems. Tracked 7,500+ video sequences, identifying specific actions, gestures, and movement patterns. Maintained 93% accuracy in action classification while handling diverse cultural contexts and regional behavioral variations.

Annotated human actions in surveillance and training videos for AI behavior recognition systems. Tracked 7,500+ video sequences, identifying specific actions, gestures, and movement patterns. Maintained 93% accuracy in action classification while handling diverse cultural contexts and regional behavioral variations.

2023 - 2024

conversational AI Response Evaluation and Optimization

Scale AIImageBounding BoxEntity Ner Classification

Labeled retail product images for e-commerce AI systems. Created 10,000+ bounding boxes around products, classified categories, and identified brand logos. Achieved 94% accuracy in object detection tasks while maintaining consistent annotation quality across diverse product catalogs and cultural market variations.

Labeled retail product images for e-commerce AI systems. Created 10,000+ bounding boxes around products, classified categories, and identified brand logos. Achieved 94% accuracy in object detection tasks while maintaining consistent annotation quality across diverse product catalogs and cultural market variations.

2022 - 2023

Arabic-English Medical Translation Quality Assessment

LionbridgeTextEntity Ner ClassificationTranslation Localization

Evaluated medical document translations for AI training datasets focusing on Arabic-English healthcare terminology. Assessed 8,000+ medical text pairs for accuracy, cultural sensitivity, and clinical precision. Maintained 97% quality score while identifying critical terminology errors and cultural adaptation requirements for medical AI systems.

Evaluated medical document translations for AI training datasets focusing on Arabic-English healthcare terminology. Assessed 8,000+ medical text pairs for accuracy, cultural sensitivity, and clinical precision. Maintained 97% quality score while identifying critical terminology errors and cultural adaptation requirements for medical AI systems.

2021 - 2022

Multilingual E-Commerce Search Relevance Optimization

Scale AITextEntity Ner ClassificationTranslation Localization

Led search relevance annotation for e-commerce algorithms across Arabic and English markets. Rated 15,000+ query-result pairs on 1-5 scale, identified product entities, and evaluated cultural appropriateness. Maintained 98% accuracy over 6-month project while processing 80-120 annotations daily. Specialized in disambiguating multilingual search intent and cross-cultural terminology challenges.

Led search relevance annotation for e-commerce algorithms across Arabic and English markets. Rated 15,000+ query-result pairs on 1-5 scale, identified product entities, and evaluated cultural appropriateness. Maintained 98% accuracy over 6-month project while processing 80-120 annotations daily. Specialized in disambiguating multilingual search intent and cross-cultural terminology challenges.

2021 - 2021

Education

Work History