Celestine Izundu

Key Skills

Software

Appen

Data Annotation Tech

Labelbox

Mindrift

Telus

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Medical Dicom

Text

Video

Top Label Types

Action Recognition

Data Collection

Evaluation Rating

Object Detection

Prompt Response Writing SFT

Transcription

Freelancer Overview

I am an experienced English Language Specialist and AI Trainer with a strong background in data annotation, proofreading, and linguistic quality assurance for AI and NLP projects. With native-level English proficiency (IELTS Band 8, CEFR C1/C2), I excel at reviewing and annotating text data, crafting realistic multi-turn dialogues, and evaluating LLM responses for instruction-following, coherence, and tone. My work involves applying strict quality standards to ensure data accuracy and contextual relevance, as well as generating prompts and rubrics for AI model training. I am adept at remote collaboration, consistently delivering high-quality results on tight deadlines, and bring a professional, detail-oriented approach to every project. My medical training also equips me with strong analytical skills and domain expertise for projects involving medical or technical data.

Labeling Experience

Video Labeling

AppenVideoObject DetectionAction Recognition

Labeled video clips. The project facilitates a human egocentric video annotation workflow. Annotated videos showing humans completing physical tasks from a first-person (ego) perspective.

Labeled video clips. The project facilitates a human egocentric video annotation workflow. Annotated videos showing humans completing physical tasks from a first-person (ego) perspective.

2021 - 2023

Education

Work History