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Data Annotator and AI training specialist with experience labeling text, image, audio, and video datasets for AI/ML applications. Strong focus on guideline compliance, accuracy, and consistency at scale across multiple annotation platforms. Experienced with RLHF preference ranking and LLM evaluation/quality assurance workflows. Committed to improving model performance through precise, well-documented annotations and thorough QA, including review of peer work.…Data Annotator and AI training specialist with experience labeling text, image, audio, and video datasets for AI/ML applications. Strong focus on guideline compliance, accuracy, and consistency at scale across multiple annotation platforms. Experienced with RLHF preference ranking and LLM evaluation/quality assurance workflows. Committed to improving model performance through precise, well-documented annotations and thorough QA, including review of peer work.

Attah Faith Uzochukwu

Data Annotator, Data Scientist, Audio Transcriber, +1

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Data Annotator and AI training specialist with experience labeling text, image, audio, and video datasets for AI/ML applications. Strong focus on guideline compliance, accuracy, and consistency at scale across multiple annotation platforms. Experienced with RLHF preference ranking and LLM evaluation/quality assurance workflows. Committed to improving model performance through precise, well-documented annotations and thorough QA, including review of peer work.…Data Annotator and AI training specialist with experience labeling text, image, audio, and video datasets for AI/ML applications. Strong focus on guideline compliance, accuracy, and consistency at scale across multiple annotation platforms. Experienced with RLHF preference ranking and LLM evaluation/quality assurance workflows. Committed to improving model performance through precise, well-documented annotations and thorough QA, including review of peer work.

Available to hire

Data Annotator and AI training specialist with experience labeling text, image, audio, and video datasets for AI/ML applications. Strong focus on guideline compliance, accuracy, and consistency at scale across multiple annotation platforms.
Experienced with RLHF preference ranking and LLM evaluation/quality assurance workflows. Committed to improving model performance through precise, well-documented annotations and thorough QA, including review of peer work.

Skills

AI Collection (Audio)

Experience Level

Expert

Expert

Intermediate

Intermediate

AI Collection (Audio)

Intermediate

AI Collection (Video)

Intermediate

Data Visualization

Beginner

Language

English

Fluent

Work Experience

Freelance Data Annotator at Multiple AI Platforms (Scale AI, Outlier, DataAnnotation)

January 1, 2023 - Present

Annotated thousands of text, image, and audio samples for AI training datasets across multiple concurrent platforms, maintaining over 95% accuracy. Performed RLHF preference ranking and LLM response evaluation tasks to improve model output quality. Labeled diverse data types including NER, sentiment analysis, bounding boxes, segmentation masks, and transcription. Met deadlines consistently and performed peer review/quality checks to ensure dataset consistency and inter-annotator agreement.

Data Labeling Specialist at Independent Contractor

January 1, 2022 - January 1, 2023

Completed NLP annotation tasks including intent classification, entity tagging, and dialogue act labeling. Annotated over 10,000 images with precise bounding boxes and segmentation for computer vision training. Interpreted and applied complex annotation guidelines across varied domains, maintained completion logs, and flagged ambiguous cases for supervisor review to improve guideline clarity.