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Anh Ha Hoang

@anhhahoang

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AI Trainer at Outlier.ai who evaluates and ranks AI responses and reviews them for factual accuracy and safety.

Vietnam

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At Outlier.ai, I evaluated and ranked AI responses for accuracy, fluency, coherence, and instruction adherence. I also performed RLHF preference labeling and reviewed outputs for factual accuracy, hallucinations, logical consistency, and safety.

With OneForma (Centific), I classified text and intent and evaluated Vietnamese content for grammatical correctness, naturalness, tonal accuracy, and contextual fit. I also reviewed transcriptions against recorded audio and corrected tone markers, punctuation, and word boundaries.

Across freelance AI training platforms, I reviewed annotation quality, flagged harmful content, rated search relevance, and labeled images and videos. As a Full-Stack Developer Intern (Java & Angular) at Ignify, I integrated and evaluated the Google Gemini API for automated data parsing.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer Intern

Ignify

Nov 2025 - Apr 2026 (5 months)

Integrated and evaluated Google Gemini API for automated data parsing. Conducted API testing with Postman and database validation in MySQL for a banking system.

Java Angular Google Gemini API Postman MySQL API Testing Database Validation

Data Annotator & Language Evaluator

OneForma (Centific)

Jan 2025 - Jan 2026 (1 year)

Performed text classification, intent labeling, and structured data categorization for NLP training datasets. Evaluated Vietnamese language content for grammatical correctness, naturalness, tonal accuracy, and contextual fit.

Text Classification Intent Labeling Language Evaluation Transcription Review Audio Recording

AI Trainer

Outlier.ai

Jan 2025 - Jan 2026 (1 year)

Evaluated and ranked AI responses side-by-side across accuracy, fluency, coherence, and instruction adherence. Performed RLHF preference labeling and reviewed prompts for factual accuracy, hallucination, logical consistency, and safety concerns.

Response Ranking RLHF Prompt Engineering Factuality Review Safety Evaluation Video Recording

Freelance Data Annotation Specialist

Various AI Training Platforms

Jan 2024 - Jan 2026 (2 years)

Conducted label quality assurance and safety flagging across batches. Completed search relevance rating and image/video labeling tasks including bounding boxes and scene classification.

Label Quality Assurance Safety Flagging Relevance Rating Image Labeling Video Labeling Bounding Box Annotation