Hero I.

Key Skills

Software

Appen

Top Subject Matter

Machine learning dataset annotation and QA

Web evaluation and video annotation for AI training

Top Data Types

Text

Video

Image

Top Task Types

Classification

Action Recognition

Text Generation

Evaluation/Rating

Data Collection

Prompt + Response Writing (SFT)

Function Calling

Freelancer Overview

DataAnnotation – Data Analyst & Annotator (Present). Core strengths include Internal, Proprietary Tooling, and Appen. Education includes Bachelor of Science, University of Uyo and Master of Science, University of Uyo. AI-training focus includes data types such as Text and Video and labeling workflows including Classification and Action Recognition.

Labeling Experience

DataAnnotation – Data Analyst & Annotator (Present)

TextClassification

Provided data labeling and annotation for large-scale machine learning dataset preparation, ensuring labeled outputs were accurate and consistent. Validated JSON-formatted datasets against labeling rules and data structure requirements to support downstream training. Reviewed and verified annotations using Java-based internal tools and workflows. • Annotated structured and unstructured datasets for model training support • Performed accuracy and consistency checks on labeled data • Validated JSON schema and labeling rule compliance • Coordinated with cross-functional teams to deliver dataset quality within deadlines

2021 - Present

Appen Ltd – Web Evaluator | Data Labeling & Video Annotation Specialist

AppenVideoAction Recognition

Evaluated web search results for relevance, accuracy, and usefulness to improve search performance. Performed data labeling and video annotation for AI and computer vision training datasets, ensuring outputs met project specifications. Managed and validated JSON-based annotation files using Java-supported tools and quality benchmarks. • Labeled data and annotated video content for computer vision datasets • Conducted web search evaluation for relevance and accuracy • Validated JSON annotation files against requirements • Maintained high-quality outputs under tight deadlines

2018 - 2021

Education

Work History