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Joseph David

@josephdavid3

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AI evaluation specialist ensuring accurate, relevant, safe AI outputs across modalities.

Nigeria

Message

What I'm looking for

I’m looking to support AI training by evaluating and annotating outputs with rigorous accuracy, safety, and quality checks, working closely with ML teams and clear guidelines in fast-paced timelines.

I’m a detail-oriented AI Evaluation Specialist with a Computer Science foundation and hands-on experience evaluating AI-generated outputs for accuracy, relevance, and safety. I’ve worked across annotation, transcription, and media evaluation, with a strong analytical understanding of machine learning workflows.

From 2024 to present, I’ve evaluated AI-generated text responses for fluency, policy compliance, and factual correctness, labeled datasets across conversational AI and search/classification tasks, and ranked model outputs by relevance and coherence. I also perform audio transcription and alignment with high precision, consistently maintaining 95%+ quality scores, while flagging harmful, biased, or unsafe outputs according to guidelines.

Experience

Work history, roles, and key accomplishments

Current

AI Data Annotator & Evaluator

Current

Freelance

Jan 2024 - Present (2 years 5 months)

Evaluated AI-generated text responses for accuracy, fluency, and policy compliance, and ranked outputs by relevance, coherence, and factual correctness. Produced 95%+ quality scores while labeling multi-domain datasets and flagging harmful, biased, or unsafe responses.

Prompt Evaluation Audio Transcription Quality Assurance (QA)

Audio Transcriber & Translator

Upwork

Jan 2023 - Jan 2024 (1 year)

Transcribed complex English audio with diverse accents and background noise, delivering accurate, well-structured transcripts under strict deadlines. Corrected AI-assisted outputs to ensure contextual accuracy and grammatical correctness.

Transcription Translation