Key Skills

Software

Appen

Mindrift

Other

iMerit

Mercor

Micro1

Top Subject Matter

Fraud Detection

Identity Verification

Machine Learning Model Development

Top Data Types

Image

Audio

Video

Text

Document

Top Task Types

Object Detection

Classification

Bounding Box

Freelancer Overview

Senior Data Annotator. Core strengths include Appen, Mindrift, and Other. Education includes Bachelor of Science, University of Nairobi (2019) and Certificate, Deelab.ai (2024). AI-training focus includes data types such as Image, Audio, and Video and labeling workflows including Object Detection, Classification, and Bounding Box.

Labeling Experience

Senior Data Annotator

AppenImageObject Detection

As a Senior Data Annotator at CrowdGen, I was responsible for collecting and submitting structured short-form videos and images for AI fraud detection and identity verification models. I executed data capture and annotation, ensuring strict adherence to client specifications and global data standards. I maintained a 100% acceptance rate and supported AI model improvement by enhancing dataset diversity. • Led data collection and labeling of object-based and environment-specific images and videos • Used Appen Mobile and internal tools for precise annotations • Ensured dataset uniqueness, lighting, framing, and detailed metadata • Focused on fraud detection and identity verification subject matter.

As a Senior Data Annotator at CrowdGen, I was responsible for collecting and submitting structured short-form videos and images for AI fraud detection and identity verification models. I executed data capture and annotation, ensuring strict adherence to client specifications and global data standards. I maintained a 100% acceptance rate and supported AI model improvement by enhancing dataset diversity. • Led data collection and labeling of object-based and environment-specific images and videos • Used Appen Mobile and internal tools for precise annotations • Ensured dataset uniqueness, lighting, framing, and detailed metadata • Focused on fraud detection and identity verification subject matter.

2023 - Present

Data Annotator

MindriftAudioClassification

I conducted data collection, evaluation, and annotation across audio, video, and image datasets to support AI model development. I performed pairwise comparisons, counting tasks, object tagging, and labeling adhering to detailed project guidelines. My work ensured content accuracy and consistent metadata, contributing to high dataset reliability. • Annotated and classified multi-modal content including audio, video, and images • Executed labeling and pairwise content comparison tasks • Maintained high accuracy and compliance with guidelines • Supported improvements in model training and dataset reliability.

I conducted data collection, evaluation, and annotation across audio, video, and image datasets to support AI model development. I performed pairwise comparisons, counting tasks, object tagging, and labeling adhering to detailed project guidelines. My work ensured content accuracy and consistent metadata, contributing to high dataset reliability. • Annotated and classified multi-modal content including audio, video, and images • Executed labeling and pairwise content comparison tasks • Maintained high accuracy and compliance with guidelines • Supported improvements in model training and dataset reliability.

2022 - 2023

Freelancer (AI Data Services)

OtherVideoBounding Box

As a freelancer on Upwork & Fiverr, I delivered AI data services including video recording, image labeling with bounding boxes, and dataset auditing for object recognition and scene classification. My responsibilities also included facial attribute detection and retail fraud prevention labeling projects. Client satisfaction was consistently high due to quality, error identification, and proactive guideline refinement. • Labeled video and image data with bounding boxes and classification • Supported tasks for object recognition and scene understanding • Worked on facial attribute and retail fraud datasets • Provided QA feedback and annotation error reviews.

As a freelancer on Upwork & Fiverr, I delivered AI data services including video recording, image labeling with bounding boxes, and dataset auditing for object recognition and scene classification. My responsibilities also included facial attribute detection and retail fraud prevention labeling projects. Client satisfaction was consistently high due to quality, error identification, and proactive guideline refinement. • Labeled video and image data with bounding boxes and classification • Supported tasks for object recognition and scene understanding • Worked on facial attribute and retail fraud datasets • Provided QA feedback and annotation error reviews.

2019 - 2021

Education

Work History