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Data Annotation Specialist – Minddrift Data Solutions

Nigeria flagLagos, Nigeria
$10.00/hrExpertMindriftLabelboxCVAT

Key Skills

Software

MindriftMindrift
LabelboxLabelbox
CVATCVAT
ProdigyProdigy

Top Subject Matter

AI Model Training Data Preparation
ML Dataset Quality Assurance
NLP and Computer Vision Annotation

Top Data Types

TextText
AudioAudio
ImageImage
DocumentDocument

Top Task Types

ClassificationClassification

Freelancer Overview

Data Annotation Specialist – Minddrift Data Solutions. Brings 12+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mindrift, Labelbox, and CVAT. Education includes Master of Engineering, Lagos State University (2024) and Bachelor of Engineering, Federal University of Petroleum Resources, Effurun (2014). AI-training focus includes data types such as Text, Audio, and Image and labeling workflows including Classification.

ExpertEnglish

Labeling Experience

Mindrift

Data Annotation Specialist – Minddrift Data Solutions

MindriftTextClassification
As a Data Annotation Specialist at Minddrift Data Solutions, I labeled and categorized large datasets for AI model training. I ensured high accuracy in annotation tasks and validated data quality across multiple projects. I collaborated to enhance both annotation guidelines and project delivery standards. • Labeled text, audio, and image data using advanced annotation tools. • Maintained data integrity and consistency through rigorous QA processes. • Reviewed, validated, and improved labeled datasets to ensure project success. • Supported project and guideline improvements by communicating recommendations to management.

As a Data Annotation Specialist at Minddrift Data Solutions, I labeled and categorized large datasets for AI model training. I ensured high accuracy in annotation tasks and validated data quality across multiple projects. I collaborated to enhance both annotation guidelines and project delivery standards. • Labeled text, audio, and image data using advanced annotation tools. • Maintained data integrity and consistency through rigorous QA processes. • Reviewed, validated, and improved labeled datasets to ensure project success. • Supported project and guideline improvements by communicating recommendations to management.

2023 - Present

AI Data Quality Analyst – NexaCore Analytics Ltd

TextClassification
As an AI Data Quality Analyst at NexaCore Analytics Ltd, I conducted data validation and tagging for machine learning datasets. I created tagging structures to facilitate improved dataset usability and ensured thorough documentation of all annotation standards. I supported ML engineers by maintaining data quality and consistency in all labeled datasets. • Performed QA and validation for NLP and computer vision datasets. • Developed tagging schemes to enhance data structure and searchability. • Prepared clean and structured datasets for ML team use. • Documented all annotation processes for future use and onboarding.

As an AI Data Quality Analyst at NexaCore Analytics Ltd, I conducted data validation and tagging for machine learning datasets. I created tagging structures to facilitate improved dataset usability and ensured thorough documentation of all annotation standards. I supported ML engineers by maintaining data quality and consistency in all labeled datasets. • Performed QA and validation for NLP and computer vision datasets. • Developed tagging schemes to enhance data structure and searchability. • Prepared clean and structured datasets for ML team use. • Documented all annotation processes for future use and onboarding.

2021 - 2023

Junior Data Labelling Associate – Veritas Edge Systems

TextClassification
At Veritas Edge Systems, I annotated text and image datasets for both NLP and computer vision applications. I ensured labeling accuracy through manual review and helped optimize annotation workflows. I also assisted in training new data labelers on best annotation practices. • Annotated diverse datasets supporting AI model development. • Conducted quality checks by manually reviewing dataset labels. • Utilized internal tools to process and organize labeling work. • Guided and trained junior annotators during onboarding and project work.

At Veritas Edge Systems, I annotated text and image datasets for both NLP and computer vision applications. I ensured labeling accuracy through manual review and helped optimize annotation workflows. I also assisted in training new data labelers on best annotation practices. • Annotated diverse datasets supporting AI model development. • Conducted quality checks by manually reviewing dataset labels. • Utilized internal tools to process and organize labeling work. • Guided and trained junior annotators during onboarding and project work.

2019 - 2021

Education

F

Federal University of Petroleum Resources, Effurun

Bachelor of Engineering, Mechanical Engineering

Bachelor of Engineering
2010 - 2014
D

Delta State Polytechnic, Ozoro

Ordinary National Diploma, Civil Engineering Technology

Ordinary National Diploma
2008 - 2010

Work History

D

Dangote Oil Refinery & Petrochemical

Mechanical Engineer

Lagos
2022 - 2025
J

Jecofield Energy Systems

Project Engineer / Planner

Lagos
2020 - 2022