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Nubwa John

Nubwa John

AI Trainer - Data Annotation & Quality Assurance

NIGERIA flag
Abuja, Nigeria
$20.00/hrEntry LevelAppenHivemindLionbridge

Key Skills

Software

AppenAppen
HiveMindHiveMind
LionbridgeLionbridge
MindriftMindrift
OneFormaOneForma
TolokaToloka

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
VideoVideo

Top Label Types

Audio Recording
Classification
Data Collection
Emotion Recognition
Evaluation Rating
Object Detection
Segmentation
Transcription

Freelancer Overview

I am a detail-oriented AI Trainer and Data Annotator with over 10 years of experience supporting data labeling and annotation projects across image, video, audio, and text modalities. My background includes hands-on work with digital annotation platforms, where I have consistently delivered high-quality, bias-aware datasets for machine learning model training and evaluation. I excel at interpreting complex annotation guidelines, performing quality assurance checks, and collaborating remotely with QA and project teams to resolve discrepancies and optimize workflows. My experience spans data analysis, content evaluation, and information management for international organizations, enabling me to handle structured and unstructured data with a strong focus on accuracy and consistency. I am proficient in tools such as Python, Power BI, and Microsoft 365, and bring a self-driven, deadline-oriented approach to every project. My passion lies in building reliable AI systems through meticulous annotation, error detection, and continuous process improvement.

Entry LevelEnglishHausa

Labeling Experience

No Data Labeling experience added

Nubwa J. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

U

University of Texas at Austin (online)

Postgraduate Program, Data Science and Business Analytics

Postgraduate Program
2024 - 2025
N

National Open University of Nigeria

Master of Art, Public Administration

Master of Art
2017 - 2019

Work History

I

International Organization for Migration

Data Analyst / Information Management Specialist

Lagos
2020 - 2024