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J

Jibril Hussein Mohamed

Kiswahili Linguist (Freelance)

Kenya flagNairobi, Kenya
$20.00/hrIntermediateOtherAppenData Annotation Tech

Key Skills

Software

Other
AppenAppen
Data Annotation TechData Annotation Tech

Top Subject Matter

Kiswahili linguistics and language data
English linguistics and language data
General data annotation for AI systems

Top Data Types

AudioAudio
TextText
ImageImage

Top Task Types

TranscriptionTranscription
ClassificationClassification

Freelancer Overview

I have hands-on experience in data annotation and labeling across various formats, including text, audio, and image datasets. I am detail-oriented and committed to maintaining high accuracy and consistency, ensuring quality outputs that support effective machine learning models. Additionally, I have experience in transcription, delivering clear and precise transcripts in both English and Swahili while preserving context and meaning. My ability to work efficiently, follow guidelines, and meet deadlines makes me a reliable contributor to data-driven projects

IntermediateEnglishSwahiliSomali

Labeling Experience

Data Structuring for AI Systems Project

OtherTextClassification
For Data Structuring for AI Systems, I processed and organized raw datasets into structured formats for model training. I identified errors and improved overall data quality. This work provided high-quality training data to AI development teams. • Annotated and structured raw data for AI model development. • Improved dataset quality by identifying and correcting errors. • Classified and categorized diverse data sources. • Collaborated closely with AI teams on data preparation tasks.

For Data Structuring for AI Systems, I processed and organized raw datasets into structured formats for model training. I identified errors and improved overall data quality. This work provided high-quality training data to AI development teams. • Annotated and structured raw data for AI model development. • Improved dataset quality by identifying and correcting errors. • Classified and categorized diverse data sources. • Collaborated closely with AI teams on data preparation tasks.

2024 - 2025

Image & Content Categorization Project

OtherImageClassification
As part of Image & Content Categorization projects, I classified and labeled images using predefined taxonomies. I ensured annotation consistency across large datasets and flagged unclear data for review. My efforts directly supported dataset preparation for AI vision models. • Labeled images based on project taxonomy requirements. • Maintained dataset quality and flagged ambiguous images. • Reviewed outputs to ensure labeling accuracy. • Contributed to large-scale data structuring for AI vision.

As part of Image & Content Categorization projects, I classified and labeled images using predefined taxonomies. I ensured annotation consistency across large datasets and flagged unclear data for review. My efforts directly supported dataset preparation for AI vision models. • Labeled images based on project taxonomy requirements. • Maintained dataset quality and flagged ambiguous images. • Reviewed outputs to ensure labeling accuracy. • Contributed to large-scale data structuring for AI vision.

2024 - 2025

Text Classification & Sentiment Analysis Project

OtherTextClassification
In Text Classification & Sentiment Analysis, I labeled large datasets into sentiment categories such as positive, negative, and neutral. I applied structured annotation guidelines to ensure dataset consistency and reliability. This work improved training data quality for NLP models. • Labeled text for sentiment using predefined structures. • Ensured output met annotation quality standards. • Performed correction and validation of labeled data. • Supported development of AI text classifiers.

In Text Classification & Sentiment Analysis, I labeled large datasets into sentiment categories such as positive, negative, and neutral. I applied structured annotation guidelines to ensure dataset consistency and reliability. This work improved training data quality for NLP models. • Labeled text for sentiment using predefined structures. • Ensured output met annotation quality standards. • Performed correction and validation of labeled data. • Supported development of AI text classifiers.

2024 - 2025

Data Annotation Specialist (Freelance)

OtherTextClassification
As a Data Annotation Specialist (Freelance), I annotated and categorized text, image, and audio datasets. I transformed unstructured data into structured formats for AI model training. Using detailed rubrics, I ensured consistency, high quality, and flagged issues for review. • Labeled text, image, and audio according to strict guidelines. • Structured large datasets for machine learning models. • Flagged ambiguous or inconsistent data for quality checks. • Validated and corrected datasets to improve accuracy.

As a Data Annotation Specialist (Freelance), I annotated and categorized text, image, and audio datasets. I transformed unstructured data into structured formats for AI model training. Using detailed rubrics, I ensured consistency, high quality, and flagged issues for review. • Labeled text, image, and audio according to strict guidelines. • Structured large datasets for machine learning models. • Flagged ambiguous or inconsistent data for quality checks. • Validated and corrected datasets to improve accuracy.

2024 - 2025

English Linguist (Freelance)

OtherTextTranscription
As an English Linguist (Freelance), I completed annotation, correction, and conversational interaction tasks in English. I ensured grammatical accuracy and consistency across various linguistic datasets. This work supported enhancements in AI-powered text understanding applications. • Annotated and corrected text datasets for language processing. • Conducted conversational interaction labeling for AI models. • Ensured grammatical, spelling, and formatting accuracy in datasets. • Maintained high quality and consistency in labeled data.

As an English Linguist (Freelance), I completed annotation, correction, and conversational interaction tasks in English. I ensured grammatical accuracy and consistency across various linguistic datasets. This work supported enhancements in AI-powered text understanding applications. • Annotated and corrected text datasets for language processing. • Conducted conversational interaction labeling for AI models. • Ensured grammatical, spelling, and formatting accuracy in datasets. • Maintained high quality and consistency in labeled data.

2024 - 2025

Education

U

University of Nairobi

Bachelor of Science, Computer Science

Bachelor of Science
2024 - 2024
A

Amboseli International School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2018 - 2018

Work History

A

appen

data annotation and transcription

NAIROBI
2025 - Present
D

data annotation tech

image labeling and data annotation

NAIROBI
2025 - 2025