Kelvin Nwachukwu

Key Skills

Software

HiveMind

Top Subject Matter

No subject matter listed

Top Data Types

Video

Top Label Types

Point Key Point

Segmentation

Classification

Object Detection

Tracking

Freelancer Overview

I am an experienced AI data annotation and training specialist with over five years of hands-on expertise in text annotation, image labeling, search relevance rating, and LLM evaluation. I have worked on high-volume projects using platforms like Atlas Capture, Aurora Studios, Mindrift, and Turing, consistently maintaining a 98%+ accuracy rate and delivering over 10,000 validated data entries. My background spans multilingual data validation, content moderation, and providing structured feedback to optimize AI models for tasks in natural language processing and computer vision. I am adept at following complex guidelines, meeting tight deadlines, and collaborating remotely to ensure high-quality, reliable training data for AI systems.

Labeling Experience

AI Data Annotator | Precision Labeling and Quality-Focused Evaluation

HivemindVideoPoint Key PointSegmentation

Currently contributing to a video annotation project focused on action recognition and temporal labeling. My role involves reviewing video clips, accurately tagging actions, defining start–end timestamps, and applying “No Action” where appropriate within structured taxonomy guidelines. The dataset includes thousands of real-world video samples, requiring strong attention to detail and edge case handling. I maintain quality through strict guideline adherence, self-review, and consistency checks to ensure high annotation accuracy and strong QA alignment

Currently contributing to a video annotation project focused on action recognition and temporal labeling. My role involves reviewing video clips, accurately tagging actions, defining start–end timestamps, and applying “No Action” where appropriate within structured taxonomy guidelines. The dataset includes thousands of real-world video samples, requiring strong attention to detail and edge case handling. I maintain quality through strict guideline adherence, self-review, and consistency checks to ensure high annotation accuracy and strong QA alignment

2023

Education

Work History