Uchenna C.

Key Skills

Software

Appen

Data Annotation Tech

Label Studio

CVAT

Top Subject Matter

AI training data annotation (text)

AI training data annotation (images)

Freelance dataset preparation (data entry/cleaning)

Top Data Types

Text

Image

Document

Top Task Types

Classification

Question Answering

Evaluation/Rating

Data Collection

Text Summarization

Object Detection

Segmentation

Freelancer Overview

AI Training Data Annotation Projects (CrowdGen) - Text Annotation. Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include CrowdGen, Google Sheets, and Microsoft Excel. Education includes Bachelor of Pharmacy, University of Port Harcourt (2021) and Bachelor of Pharmacy, Federal Medical Centre, Umuahia (2024). AI-training focus includes data types such as Text, Image, and Document and labeling workflows including Classification.

Labeling Experience

Freelance Data Entry Specialist - Dataset Preparation for AI/Data Work

DocumentClassification

Prepared and organized dataset content through high-accuracy freelance data entry and cleaning tasks. Reviewed datasets to identify and correct inconsistencies to improve usability for later AI/data-labeling work. Followed client instructions and maintained confidentiality while working on spreadsheet-based projects. • Cleaned and organized large volumes of dataset records • Reviewed data for inconsistencies and corrections • Managed spreadsheet-based dataset preparation • Maintained confidentiality and met project deadlines

2024 - Present

AI Training Data Annotation Projects (CrowdGen) - Image & Video Tagging/Annotation

ImageClassification

Annotated image datasets according to CrowdGen project guidelines for machine learning model training. Categorized and labeled visual data and applied required labeling rules to meet consistency standards. Performed quality checks to ensure accuracy and improve overall dataset readiness. • Labeled/categorized images for ML training • Performed quality assurance on labeled outputs • Followed annotation guidelines for consistency • Supported dataset quality improvements for model performance

2024 - Present

AI Training Data Annotation Projects (CrowdGen) - Text Annotation

TextClassification

Annotated text datasets according to CrowdGen project guidelines to support machine learning model training. Categorized and labeled data for use in downstream AI workflows while ensuring label consistency. Conducted quality checks to maintain annotation accuracy and dataset reliability. • Labeled/categorized text for machine learning training • Verified annotation consistency during QA • Followed project instructions and labeling guidelines • Assisted in improving dataset quality for model performance

2024 - Present

Education

Work History