Obinna Aliozor

Key Skills

Software

Labelbox

CVAT

Other

Top Subject Matter

AI Training Datasets

Machine Learning Applications

E-commerce/Product Data

Top Data Types

Image

Text

Geospatial Tiled Imagery

Top Task Types

Classification

Entity (NER) Classification

Fine-tuning

Object Detection

Transcription

Data Collection

Function Calling

Prompt + Response Writing (SFT)

Text Summarization

Question Answering

Text Generation

Evaluation/Rating

Segmentation

Bounding Box

Polygon

Computer Programming/Coding

Freelancer Overview

Senior Annotation Specialist. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, CVAT, and Other. Education includes Bachelor of Science, Nnamdi Azikiwe University (2014). AI-training focus includes data types such as Image and Text and labeling workflows including Classification and Entity (NER) Classification.

Labeling Experience

Senior Annotation Specialist

LabelboxImageClassification

As a Senior Annotation Specialist at Adehot Global, I annotated and validated large-scale datasets for AI training across multiple projects. My work focused on improving AI model accuracy through high-quality data labeling and review of other annotators’ output. I consistently interpreted and applied complex project guidelines while collaborating with interdisciplinary teams. • Led annotation and validation for image, text, and audio data. • Reviewed and corrected team members’ annotations for quality assurance. • Enhanced annotation strategies alongside scientists and managers. • Achieved significant improvements in model performance through accurate data labeling.

As a Senior Annotation Specialist at Adehot Global, I annotated and validated large-scale datasets for AI training across multiple projects. My work focused on improving AI model accuracy through high-quality data labeling and review of other annotators’ output. I consistently interpreted and applied complex project guidelines while collaborating with interdisciplinary teams. • Led annotation and validation for image, text, and audio data. • Reviewed and corrected team members’ annotations for quality assurance. • Enhanced annotation strategies alongside scientists and managers. • Achieved significant improvements in model performance through accurate data labeling.

2021 - Present

Data Annotation Analyst

CVATTextEntity Ner Classification

In my position as Data Annotation Analyst, I labeled text, image, and audio data for various machine learning applications. My consistent attention to detail maintained 98% accuracy rates project-wide. I identified and resolved dataset inconsistencies while ensuring deadline adherence. • Labeled multi-type data (text, images, audio) for machine learning. • Maintained high annotation accuracy and consistency. • Improved workflows by suggesting process enhancements. • Met daily annotation and project targets successfully.

In my position as Data Annotation Analyst, I labeled text, image, and audio data for various machine learning applications. My consistent attention to detail maintained 98% accuracy rates project-wide. I identified and resolved dataset inconsistencies while ensuring deadline adherence. • Labeled multi-type data (text, images, audio) for machine learning. • Maintained high annotation accuracy and consistency. • Improved workflows by suggesting process enhancements. • Met daily annotation and project targets successfully.

2018 - 2021

Junior Developer (Data Annotation Tasks)

OtherImageClassification

At Finev-Mall, as a Junior Developer, I handled data annotation tasks tied to e-commerce datasets and online product listings. My responsibilities included strict adherence to annotation guidelines and preparing data for analytics. Additionally, I supported tagging and labeling during inventory management. • Followed annotation protocols for product tagging and dataset cleaning. • Prepared labeled datasets for use in business analytics and planning. • Created product labels and assisted purchase planning. • Supported consistency in labeling for e-commerce data.

At Finev-Mall, as a Junior Developer, I handled data annotation tasks tied to e-commerce datasets and online product listings. My responsibilities included strict adherence to annotation guidelines and preparing data for analytics. Additionally, I supported tagging and labeling during inventory management. • Followed annotation protocols for product tagging and dataset cleaning. • Prepared labeled datasets for use in business analytics and planning. • Created product labels and assisted purchase planning. • Supported consistency in labeling for e-commerce data.

2016 - 2018

Education

Work History