David N.

Key Skills

Software

Other

Top Subject Matter

Conversational AI evaluation

search relevance

safety & factuality QA

Top Data Types

Text

Audio

Image

Top Task Types

Transcription

Classification

Object Detection

Freelancer Overview

Freelance AI Data Annotator & Language Specialist | Remote (AI model evaluation and search relevance). Core strengths include Other. Education includes Bachelor of Science. AI-training focus includes data types such as Text, Audio, and Image and labeling workflows including Evaluation, Rating, and Transcription.

Labeling Experience

Freelance AI Data Annotator & Language Specialist | Remote (Text labeling)

OtherTextClassification

I labeled text data for machine learning tasks, including text classification under detailed guidelines. I reviewed and maintained dataset quality by checking labeling consistency and compliance with project rules. I delivered structured, clean labeled outputs for use in ML training and evaluation workflows. • Labeled text samples according to category guidelines • Ensured consistent classification across large batches • Performed dataset QA checks for label quality • Followed detailed project rules to maintain clean outputs

2022 - Present

Freelance AI Data Annotator & Language Specialist | Remote (Image labeling)

OtherImageClassificationObject Detection

I performed large-scale image tagging and dataset review while strictly following detailed project guidelines. I categorized image content to support downstream machine learning training and quality assurance. I contributed to maintaining clean, high-quality labeled datasets suitable for model development. • Tagged images according to provided labeling guidelines • Applied consistent categorization to support dataset integrity • Reviewed labeled data for quality assurance • Supported production of clean datasets for ML teams

2022 - Present

Freelance AI Data Annotator & Language Specialist | Remote (Transcription & translation)

OtherAudioTranscription

I handled high-accuracy audio transcription tasks and converted spoken content into written text. I also translated audio content between Hausa and English while ensuring grammatical correctness and culturally appropriate phrasing. I used careful language verification to preserve meaning and maintain localization quality for training data. • Produced precise transcriptions from audio inputs • Translated between Hausa and English with grammar checks • Ensured culturally correct localization between source and target • Verified output quality to match project expectations

2022 - Present

Freelance AI Data Annotator & Language Specialist | Remote (AI model evaluation and search relevance)

OtherText

I evaluated conversational AI outputs by chatting with models, writing test prompts, and grading responses for accuracy, helpfulness, safety, and logical consistency. I compared multiple AI responses and produced clear justification for which output was better and why, including factual correctness and risk/safety considerations. I assessed web search queries and online ad relevance to ensure returned results matched user intent and improved overall search relevance quality. • Wrote and executed test prompts for chatbot response evaluation • Rated and compared AI-generated text for safety and factual accuracy • Provided written rationales explaining relative quality of responses • Reviewed search queries/ads for relevance to intended user needs

2022 - Present

Education

Work History