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Mathias Chukwuka

Mathias Chukwuka

AI Specialist/Data Analyst in Contract Review, Compliance, and Legal Research

NIGERIA flag
Lagos, Nigeria
$15.00/hrEntry LevelLabelboxLabelimgCVAT

Key Skills

Software

LabelboxLabelbox
LabelImgLabelImg
CVATCVAT

Top Subject Matter

Legal Services & Contract Review
Regulatory Compliance & Risk Analysis
Legal Research & Document Analysis

Top Data Types

TextText
ImageImage
AudioAudio
DocumentDocument

Top Task Types

Text Summarization
Question Answering
Object Detection
Function Calling

Freelancer Overview

AI Specialist/Data Analyst in Contract Review, Compliance, and Legal Research. Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Master of Engineering, Engineering Institute of Technology (2024) and Bachelor of Engineering, M. O University (2024).

Entry LevelEnglish

Labeling Experience

Ai Data Annotation Specialist

ImageText Summarization
I have worked on a variety of data labeling and annotation projects across different domains, which have helped me develop strong attention to detail and consistency. Below are a few examples: 1. Image Annotation for Object Detection I worked on labeling images for computer vision models by drawing bounding boxes around objects such as vehicles, pedestrians, and everyday items. This project required accuracy and consistency to ensure the model could correctly identify and classify objects in real-world scenarios. 2. Text Classification and Sentiment Analysis In this project, I categorized text data (such as customer reviews and social media posts) into predefined labels like positive, negative, or neutral sentiment. I also worked on topic classification, helping improve natural language processing (NLP) models. 3. Audio Transcription and Speech Labeling I participated in annotating audio datasets by transcribing spoken words and tagging elements like speaker identity, tone, and background noise. This contributed to improving speech recognition systems. 4. Named Entity Recognition (NER) I labeled text data by identifying entities such as names, locations, organizations, and dates. This helped train models to extract structured information from unstructured text. 5. Data Cleaning and Quality Assurance Beyond annotation, I reviewed labeled datasets to ensure accuracy, consistency, and adherence to guidelines. I corrected errors and flagged ambiguous cases to maintain high-quality training data. These experiences have strengthened my ability to follow detailed guidelines, meet deadlines, and maintain high-quality standards across different types of data annotation tasks.

I have worked on a variety of data labeling and annotation projects across different domains, which have helped me develop strong attention to detail and consistency. Below are a few examples: 1. Image Annotation for Object Detection I worked on labeling images for computer vision models by drawing bounding boxes around objects such as vehicles, pedestrians, and everyday items. This project required accuracy and consistency to ensure the model could correctly identify and classify objects in real-world scenarios. 2. Text Classification and Sentiment Analysis In this project, I categorized text data (such as customer reviews and social media posts) into predefined labels like positive, negative, or neutral sentiment. I also worked on topic classification, helping improve natural language processing (NLP) models. 3. Audio Transcription and Speech Labeling I participated in annotating audio datasets by transcribing spoken words and tagging elements like speaker identity, tone, and background noise. This contributed to improving speech recognition systems. 4. Named Entity Recognition (NER) I labeled text data by identifying entities such as names, locations, organizations, and dates. This helped train models to extract structured information from unstructured text. 5. Data Cleaning and Quality Assurance Beyond annotation, I reviewed labeled datasets to ensure accuracy, consistency, and adherence to guidelines. I corrected errors and flagged ambiguous cases to maintain high-quality training data. These experiences have strengthened my ability to follow detailed guidelines, meet deadlines, and maintain high-quality standards across different types of data annotation tasks.

2021 - 2025

Education

E

Engineering Institute of Technology

Master of Engineering, Mechanical Engineering

Master of Engineering
2023 - 2025
M

M. O University

Bachelor of Engineering, Mechanical Engineering

Bachelor of Engineering
2019 - 2023

Work History

C

Coca-Cola Europacific Partners

AI Specialist/Data Analyst

Perth
2023 - 2024
D

Dynamic Total Services

Data Entry Specialist / Workshop Engineer

Perth
2023 - 2023