Catherine Gitau
London
Summary
Dynamic AI Data Annotator and Product Categorisation Specialist with proven success at Outlier AI, enhancing machine learning datasets through meticulous product analysis and taxonomy mapping. Expert in structured data entry and quality control, demonstrating exceptional attention to detail and effective remote collaboration skills to drive project success.
Overview
4
4
years of professional experience
Work History
AI Data Annotator & Product Categorisation Specialist
Freelance
London
01.2022 - Current
- Categorised thousands of e-commerce products into structured taxonomies to improve AI training datasets.
- Analysed product descriptions, images, and metadata to ensure accurate classification.
- Performed quality checks and dataset validation to maintain high annotation accuracy.
- Facilitated AI training by performing data annotation assignments on Remotasks.
- Delivered product categorisation and online research tasks on Fiverr, supporting project goals.
- Contributed to AI training projects across multiple freelance platforms, enhancing machine learning model development.
- Collaborated with global remote teams working on large-scale AI data projects.
- Ensured strict adherence to data-quality guidelines while maintaining consistent productivity.
- Outlier AI – Participated in model evaluation and prompt-based training projects.
- Assisted Handshake by delivering remote data support and performing research tasks.
Online Product Research & Market Analysis
- Evaluated product listings from major e-commerce platforms including Amazon, eBay, Etsy.
- Identified product attributes, pricing patterns, and category alignment to improve data consistency.
- Technical Tools: Google Sheets & Microsoft Excel, Web-based annotation tools, Data labeling platforms, Task management dashboards, Browser-based research tools.
Education
Bachelor of Business and Information Systems -
University of East London
London, United Kingdom01.2020
A-Levels -
City of London College
London, United Kingdom01.2017
Skills
- AI annotation
- Product taxonomy
- E-commerce Product Analysis
- Data Analysis
- Quality control
- Data entry validation
- Spreadsheet management
- Online Research & Web Tools
- Workflow management
- Remote Collaboration Tools
- Clear Written Communication
Availability
Available for remote freelance or contract roles in: AI training, Data annotation, Product categorisation, E-commerce data support.
Timeline
AI Data Annotator & Product Categorisation Specialist
Freelance
01.2022 - Current
Online Product Research & Market Analysis
Bachelor of Business and Information Systems -
University of East London
A-Levels -
City of London College