Jibril Hussein

Detail-oriented Image Annotator with experience in data annotation, image labeling, transcription, Excel expert and AI data evaluation. Skilled in accurately annotating images and datasets according to project guidelines while maintaining high quality and consistency. Experienced in working with browser-based annotation tools, quality assurance processes, and AI training projects.

Strong analytical, organizational, and communication skills with the ability to work independently in remote environments.

AI Healthcare Data Reviewer & Medical Language Evaluator (Contractor) - Freelance Contract

(2025-11 - 2026-04)

• Reviewed and evaluated AI-generated healthcare and life sciences responses for accuracy, safety, and compliance with medical standards.
• Assessed annotator evaluations and ensured alignment with evidence-based healthcare knowledge and scientific reasoning.
• Identified factual inaccuracies, bias, and unsafe medical content in AI outputs.
• Provided quality assurance feedback to improve annotation consistency and evaluation quality.
• Worked with medical NLP, AI chatbot evaluation, question-answering tasks, and clinical data annotation workflows.
• Maintained evaluation integrity in accordance with project guidelines and ethical standards.
• Stayed informed on developments in medical AI, healthcare communication, and scientific research practices.

General Data Annotator & Linguistic Evaluator-ENGLISH (Contractor) - Freelance Contract

(2024-11 - 2025-04)

• Performed data annotation, labeling, and linguistic evaluation tasks to support AI model training and improvement.
• Reviewed text and language outputs for accuracy, consistency, grammar, and contextual relevance.
• Conducted quality assurance checks on annotated datasets and evaluator feedback.
• Supported NLP and language-based AI projects through transcription, classification, and content evaluation tasks.
• Maintained high productivity, confidentiality, and adherence to project guidelines and quality standards.

Somali Transcriptionist & Annotator - CrowdGen by Appen

(2026-03)

• Transcribe and annotate Somali audio and text data for AI and language technology projects.
• Review transcription outputs for linguistic accuracy, spelling, grammar, and contextual consistency.
• Perform annotation and quality evaluation tasks to improve speech recognition and NLP systems.
• Ensure culturally accurate and high-quality Somali language data in accordance with project guidelines.

Swahili Transcriptionist & Annotator - CrowdGen by Appen

(2024-06 - 2025-01)

• Transcribe and annotate Swahili audio and text data for AI and language technology projects.
• Review transcription outputs for linguistic accuracy, spelling, grammar, and contextual consistency.
• Perform annotation and quality evaluation tasks to improve speech recognition and NLP systems.
• Ensure culturally accurate and high-quality Somali language data in accordance with project guidelines.

Image Annotation Experience (AI Training Projects) - Data annotation tech

(2025-07 - 2026-01)

• Reviewed and annotated images, diagrams, and visual datasets for AI model training.
• Applied structured guidelines to interpret visual information accurately and consistently.
• Handled ambiguous and edge-case scenarios by applying careful visual and contextual judgment.
• Ensured high precision and quality in all annotation tasks, maintaining consistency across datasets.
• Completed detail-oriented labeling tasks within deadlines while following strict project instructions.
• Worked with AI training workflows that required strong attention to detail and visual-spatial reasoning.

Data Annotation Specialist (Freelance) - Freelance

(2024-01 - 2025-12)

• Annotate and categorize text, image, and audio datasets using predefined taxonomies
• Transform unstructured data into structured formats for AI model training
• Apply detailed rubrics to ensure consistency and high-quality outputs
• Identify and flag inconsistencies, ambiguities, and errors in datasets
• Maintain high accuracy while working on large-scale annotation tasks

Freelance Speech Data Annotator & Transcription Specialist - Remote Freelance Contractor

(2025-01 - 2025-11)

• Worked with recordings of natural, unscripted conversational English for speech and language data projects.
• Validated and corrected automatically generated speech boundaries using Praat.
• Produced verbatim, time-aligned orthographic transcriptions with high accuracy.
• Identified prosodic features including pauses, pitch resets, final syllable lengthening, and speech rhythm patterns.
• Reviewed waveform and spectrogram visualizations to verify segmentation both visually and by ear.
• Preserved natural speech characteristics such as disfluencies, false starts, overlaps, filled pauses, and nonlinguistic sounds.
• Maintained consistency with annotation guidelines and quality assurance standards across large audio datasets.

Bachelor of Medicine & Surgery - Medicine & Surgery - The University of Nairobi (2022-08)

Degree - Computer Science - University of Nairobi

High School Diploma - Amboseli International School