For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
N
Nguuma Chan

Nguuma Chan

Data Annotation/QA Expert

Nigeria flagLagos, Nigeria
$40.00/hrIntermediateMindriftOther

Key Skills

Software

MindriftMindrift
Other

Top Subject Matter

AI Search and Online Shopping
Computer Vision/Data Annotation

Top Data Types

TextText
ImageImage

Top Task Types

Object DetectionObject Detection

Freelancer Overview

Data Annotation/QA Expert. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mindrift and Other. Education includes Certificate, Digital Regenesys (2026) and Level 4 Diploma, Chartered Institute of Procurement and Supply (2025). AI-training focus includes data types such as Text and Image and labeling workflows including Evaluation, Rating, and Object Detection.

IntermediateEnglish

Labeling Experience

Data Annotator

OtherImageObject Detection
As a Data Annotator with Atlas Capture, I recorded and uploaded videos of daily tasks for AI training. I classified and labelled objects and actions in both images and videos to aid machine learning models. My work contributed directly to improving AI's understanding of real-world visual data. • Labeled objects and actions in videos and images. • Uploaded and organized visual data for annotation. • Supported object and action detection for model training. • Assisted in maintaining annotation accuracy and consistency.

As a Data Annotator with Atlas Capture, I recorded and uploaded videos of daily tasks for AI training. I classified and labelled objects and actions in both images and videos to aid machine learning models. My work contributed directly to improving AI's understanding of real-world visual data. • Labeled objects and actions in videos and images. • Uploaded and organized visual data for annotation. • Supported object and action detection for model training. • Assisted in maintaining annotation accuracy and consistency.

2026 - 2026
Mindrift

Data Annotation/QA Expert

MindriftText
As a Data Annotation/QA Expert at Mindrift, I evaluated search engine results and product categorizations to enhance algorithms and recommendation systems. I compared AI-generated responses to prompts for safety, helpfulness, and factual accuracy. I also provided feedback to annotators to improve submission quality. • Assessed and rated pair-wise search engine outputs. • Reviewed product listings for correct category alignment on shopping sites. • Compared AI responses for safety and factual correctness. • Offered constructive feedback on annotation submissions.

As a Data Annotation/QA Expert at Mindrift, I evaluated search engine results and product categorizations to enhance algorithms and recommendation systems. I compared AI-generated responses to prompts for safety, helpfulness, and factual accuracy. I also provided feedback to annotators to improve submission quality. • Assessed and rated pair-wise search engine outputs. • Reviewed product listings for correct category alignment on shopping sites. • Compared AI responses for safety and factual correctness. • Offered constructive feedback on annotation submissions.

2025 - 2026

Education

M

Microsoft

Certificate, Microsoft 365 Copilot and Agents

Certificate
2026 - 2026
D

Digital Regenesys

Certificate, Project Management Powered by Artificial Intelligence

Certificate
2026 - 2026

Work History

T

Tedxpeal marine Services limited

Procurement and Contracts

lagos
2022 - Present
U

Upwork

Freelance Writer

Lagos
2022 - Present