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Zakaria El Hatimi

Zakaria El Hatimi

AI Developer

USA flagAtlanta, Usa
$40.00/hrExpertOtherScale AI

Key Skills

Software

Other
Scale AIScale AI

Top Subject Matter

Generative AI and Machine Learning
AI Training Data
AI Code Generation/Quality Evaluation

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

ClassificationClassification
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
SegmentationSegmentation
Object DetectionObject Detection
Text GenerationText Generation
RLHFRLHF
Red TeamingRed Teaming
Fine-tuningFine-tuning
Text SummarizationText Summarization
Question AnsweringQuestion Answering
Evaluation/RatingEvaluation/Rating
TranscriptionTranscription
PolylinePolyline
Point/Key PointPoint/Key Point
Entity (NER) ClassificationEntity (NER) Classification
PolygonPolygon
CuboidCuboid
Computer Programming/CodingComputer Programming/Coding
Bounding BoxBounding Box
Data CollectionData Collection
Function CallingFunction Calling

Freelancer Overview

Data Annotator for AI Models. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Applied Science, N/A (2023). AI-training focus includes data types such as Text, Computer Code, and Programming and labeling workflows including Classification, Evaluation, and Rating.

ExpertEnglishFrenchArabic

Labeling Experience

Welo Data Vendor

OtherTextClassification
As a Welo Data Vendor, I contributed to high-quality, secure, and culturally relevant AI training datasets. My work involved linguistic analysis, quality assessment, and ensuring ethical data collection and labeling for AI model refinement. I collaborated with a global network of AI training professionals to boost data fidelity and localization. • Conducted linguistic and contextual evaluations • Assessed and improved dataset quality • Followed rigorous ethical and security standards • Supported multicultural and bilingual data annotation

As a Welo Data Vendor, I contributed to high-quality, secure, and culturally relevant AI training datasets. My work involved linguistic analysis, quality assessment, and ensuring ethical data collection and labeling for AI model refinement. I collaborated with a global network of AI training professionals to boost data fidelity and localization. • Conducted linguistic and contextual evaluations • Assessed and improved dataset quality • Followed rigorous ethical and security standards • Supported multicultural and bilingual data annotation

2025 - 2025

Data Annotator for AI Models

OtherTextClassification
As a Data Annotator for AI Models at RWS Group, I focused on training and enhancing generative AI and machine learning models. My main responsibilities included accurately annotating data in accordance with strict guidelines, conducting research to confirm label accuracy, and providing feedback to optimize the data annotation process. I played a key role in maintaining quality and improving data-driven AI systems. • Labeled data for training generative AI and ML models • Ensured high consistency and alignment with guidelines • Conducted quality checks by researching ambiguous cases • Provided actionable feedback on annotation patterns

As a Data Annotator for AI Models at RWS Group, I focused on training and enhancing generative AI and machine learning models. My main responsibilities included accurately annotating data in accordance with strict guidelines, conducting research to confirm label accuracy, and providing feedback to optimize the data annotation process. I played a key role in maintaining quality and improving data-driven AI systems. • Labeled data for training generative AI and ML models • Ensured high consistency and alignment with guidelines • Conducted quality checks by researching ambiguous cases • Provided actionable feedback on annotation patterns

2025 - 2025

Coders - AI

Other
At Outlier as part of the 'Coders - AI' initiative, I evaluated the outputs of AI-generated computer code and provided qualitative feedback to improve model capabilities. My responsibilities included reviewing code summaries, optimizing code performance, authoring robust test cases, and validating problem-solving strategies. This work advanced the evaluation and refinement of code-producing AI systems. • Evaluated and rated AI-generated programming solutions • Developed and executed functional test cases • Reviewed and summarized multiple solution approaches • Collaborated to enhance overall coding model quality

At Outlier as part of the 'Coders - AI' initiative, I evaluated the outputs of AI-generated computer code and provided qualitative feedback to improve model capabilities. My responsibilities included reviewing code summaries, optimizing code performance, authoring robust test cases, and validating problem-solving strategies. This work advanced the evaluation and refinement of code-producing AI systems. • Evaluated and rated AI-generated programming solutions • Developed and executed functional test cases • Reviewed and summarized multiple solution approaches • Collaborated to enhance overall coding model quality

2024 - 2025

Image Segmentation and Annotation (Freelance/Projects)

OtherImageSegmentation
I labeled images for advanced image segmentation projects, using models such as Cellpose, SAM, DINO, ViT, and YOLO for cell classification and tree detection. The work involved annotating masks, classifying features, and calculating quantitative measures across varied datasets. Through these projects, I directly facilitated computer vision model development and metric-based evaluation. • Created and validated segmentation masks for images • Classified and quantified cell and tree instances • Combined multiple computer vision models and toolkits • Improved dataset quality for enhanced evaluation metrics

I labeled images for advanced image segmentation projects, using models such as Cellpose, SAM, DINO, ViT, and YOLO for cell classification and tree detection. The work involved annotating masks, classifying features, and calculating quantitative measures across varied datasets. Through these projects, I directly facilitated computer vision model development and metric-based evaluation. • Created and validated segmentation masks for images • Classified and quantified cell and tree instances • Combined multiple computer vision models and toolkits • Improved dataset quality for enhanced evaluation metrics

2023 - 2025

Prompt Engineering and LLM Data Annotation (Freelance/Projects)

OtherTextPrompt Response Writing SFT
I created multi-turn prompt and response datasets for language model fine-tuning and safety evaluation. By authoring high-quality instructions, responses, and safety-compliant annotations, I supported iterative LLM improvement projects. The experience required strict adherence to accuracy, safety, and clarity standards in conversational data generation. • Wrote prompts and multi-turn model responses • Performed iterative quality assurance for safety • Parsed and structured data using JSON schemas • Ensured clarity and relevance for model training

I created multi-turn prompt and response datasets for language model fine-tuning and safety evaluation. By authoring high-quality instructions, responses, and safety-compliant annotations, I supported iterative LLM improvement projects. The experience required strict adherence to accuracy, safety, and clarity standards in conversational data generation. • Wrote prompts and multi-turn model responses • Performed iterative quality assurance for safety • Parsed and structured data using JSON schemas • Ensured clarity and relevance for model training

2023 - 2025

Education

U

University

Bachelor, Mathematics and Computer Science

Bachelor
2018 - 2023

Work History

A

Aligned Labs

Senior Software Engineer

San Fransisco ,CA
2025 - Present
M

Microsoft Partner

Independent Software Vendor

London
2024 - Present