Joseph Gitau

Key Skills

Software

Appen

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Computer Code Programming

Document

Image

Video

Top Label Types

Bounding Box

Polygon

Segmentation

Relationship

Freelancer Overview

I am an experienced data annotator and online data analyst with a strong background in evaluating search engine results, reviewing AI-generated responses, and verifying product categorization for e-commerce platforms. My work at Mindrift involved ensuring the accuracy, safety, and helpfulness of AI outputs, as well as providing constructive feedback to annotation teams to maintain high-quality standards. With advanced skills in AI annotation, research, and Microsoft Office, I excel at delivering precise, timely results. My academic background in English and communications, combined with extensive freelance writing and transcription experience, has honed my attention to detail and ability to work effectively with complex language data, making me well-suited for roles in NLP, content moderation, and AI training data projects.

Labeling Experience

AI Data Labeling & Annotation Specialist – Image and Text Projects

AppenImageBounding BoxPolygon

Performed image and text data labeling to support AI model training. Tasks included object detection, classification, and evaluation of AI-generated responses while following strict annotation guidelines and maintaining high accuracy and quality standards.

Performed image and text data labeling to support AI model training. Tasks included object detection, classification, and evaluation of AI-generated responses while following strict annotation guidelines and maintaining high accuracy and quality standards.

2024 - 2025

Education

Work History