Achref Grina

Key Skills

Software

Data Annotation Tech

Don't disclose

Top Subject Matter

No subject matter listed

Top Data Types

Text

Medical Dicom

Top Label Types

Classification

Text Generation

Translation Localization

RLHF

Evaluation Rating

Freelancer Overview

I am an experienced AI trainer and data annotator with a strong background in linguistics, NLP, and prompt engineering. My work includes testing and evaluating up to 47 Gemini PContext models, writing rubrics and rationales, and ensuring high-quality training data for AI systems. I have contributed to projects involving machine translation, linguistic assistance, and content optimization, leveraging my expertise in English, Arabic, and French. My skills in cross-domain annotation, from education to iGaming and medical English, are complemented by my ability to design precise prompts and provide detailed feedback for AI model improvement. I am passionate about advancing AI through meticulous data labeling and annotation, always aiming for accuracy and clarity in every project.

Labeling Experience

Kardia Project

Don T DiscloseMedical DicomRLHF

Recognition, localization and personalization.

Recognition, localization and personalization.

2025

Metis Project

Don T DiscloseTextEvaluation Rating

Personalization in Gemini using connected Apps and previous chats.

Personalization in Gemini using connected Apps and previous chats.

2025

AI Trainer/Data Annotator

Data Annotation TechTextClassificationText Generation

As an AI trainer at DataAnnotation, I was responsible for personalizing and testing Gemini models. I conducted writing rubrics, criteria testing, and prompt engineering. My work included evaluating model responses and providing detailed rationales for improvements. • Conducted up to 47 Gemini model tests (PContext models) • Developed criteria for writing response evaluation. • Generated and reviewed prompts for language models. • Specialized in prompt and response writing, as well as rubrics development.

As an AI trainer at DataAnnotation, I was responsible for personalizing and testing Gemini models. I conducted writing rubrics, criteria testing, and prompt engineering. My work included evaluating model responses and providing detailed rationales for improvements. • Conducted up to 47 Gemini model tests (PContext models) • Developed criteria for writing response evaluation. • Generated and reviewed prompts for language models. • Specialized in prompt and response writing, as well as rubrics development.

2025

Education

Work History