Dennis Ngangu

Key Skills

Software

CloudFactory

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Image

Top Task Types

Geocoding

Mapping

Object Detection

Question Answering

Text Summarization

Freelancer Overview

I am a highly accomplished Data Annotator and Labeller with two years of experience, dedicated to curating high-quality, precision-labeled datasets for advanced AI systems. My core expertise spans Audio Transcription (optimized for NLU/Speech Recognition), Document Summarization (training Generative AI), and Live Event AI Training (rapid, real-time validation). I rigorously apply Data Labelling and Quality Assurance (QA) standards to maintain exceptional Inter-Rater Reliability (IRR). I am committed to operational excellence and providing reliable, production-ready data to strengthen OpenTrain AI’s development pipeline and ensure the deployment of trustworthy, high-performing AI solutions.

Labeling Experience

Data Labeller/Annotator

CloudfactoryAudioEntity Ner ClassificationText Generation

Training Event Detection AI tools using live audio and documents

Training Event Detection AI tools using live audio and documents

2024 - 2025

Education

Work History