Chimjika O.

Key Skills

Software

Appen

Other

Top Subject Matter

AI training datasets (text/audio categorization)

Content analysis and structured writing quality checks

Academic research data processing and organization

Top Data Types

Text

Audio

Document

Top Task Types

Classification

Data Collection

Freelancer Overview

AI Data Annotator (Remote). Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, Other, and Microsoft Excel. Education includes Undergraduate Degree, N/A. AI-training focus includes data types such as Text, Audio, and Document and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Content Analysis & Structured Writing (Self-Employed)

OtherText

Reviewed and analyzed written content for clarity, accuracy, and structure while following strict guidelines. Organized information into consistent structured formats to support reliable downstream use. Maintained high accuracy across repetitive content review tasks. • Assessed written content for clarity and accuracy • Restructured content into consistent formats • Followed strict guidelines across multiple tasks • Delivered high-accuracy outputs for repetitive reviews

2023 - 2024

AI Data Annotator (Remote)

AppenTextClassification

Annotated and labeled text and audio data to support AI model training while adhering to detailed project guidelines. Performed categorization and review of outputs against predefined criteria to maintain high accuracy and consistency. Flagged unclear or inconsistent samples for resolution according to instructions. • Labeled text and audio items for training data • Followed structured annotation guidelines for consistency • Reviewed and categorized data using predefined criteria • Flagged ambiguous/inconsistent data when required

2023 - 2024

Excel Data Tracking Project

DocumentClassification

Built and managed an attendance tracking dataset in Excel with careful organization and categorization. Applied formulas and automated calculations to process large volumes of data efficiently. Ensured accuracy in data entry and computed results. • Organized and categorized large datasets • Applied Excel formulas for automation and processing • Ensured accuracy in data entry and calculations • Managed attendance tracking data structures

2023 - 2023

Academic Research & Data Processing

OtherTextData Collection

Conducted structured research and processed information by extracting relevant data into clear, understandable formats. Applied frameworks and detailed instructions to maintain consistency and accuracy in research outputs. Simplified complex topics for structured presentation across tasks. • Extracted relevant information from research materials • Simplified complex topics into clear formats • Maintained consistency and accuracy across outputs • Followed detailed instructions and frameworks

2022 - 2023

Education

Work History