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Eleazar A.

Eleazar A.

AI Data Annotator (Appen)

Nigeria flagPort Harcourt, Nigeria

Key Skills

Software

AppenAppen
LabelboxLabelbox
Other

Top Subject Matter

AI training and conversational response quality
Computer vision and NLP dataset annotation
Remote AI data labeling and prompt engineering

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

AI Data Annotator (Appen). Brings 4+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Appen, Labelbox, and Other. Education includes Bachelor of Laws, Rivers State University (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

Labelbox

AI Annotation Contributor (Labelbox)

LabelboxLabelboxTextTextData CollectionData Collection

Contributed to large-scale data labeling projects, ensuring high-quality ground-truth datasets for computer vision and NLP models. Followed project-specific guidelines to improve label consistency and model performance. • Produced/validated ground-truth annotations • Ensured adherence to labeling guidelines • Improved data reliability for CV and NLP • Supported model training readiness

2023 - 2025
Appen

AI Data Annotator (Appen)

AppenAppenTextText

Evaluated and refined AI-generated responses to ensure accuracy, safety, and relevance. Used linguistic and logical frameworks to categorize outputs for downstream machine learning model training. • Quality and safety checking of AI responses • Relevance and accuracy validation • Categorization using linguistic/logical rules • Supporting reliable training data preparation

2024 - 2024

Freelance AI Data Annotator (Upwork / Remote)

OtherTextTextPrompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Provided high-precision data labeling and prompt engineering services for global clients in a remote, self-managed setting. Consistently met rigorous deadlines and quality benchmarks while supporting AI training and evaluation needs. • Delivered labeled datasets for AI use cases • Engineered prompts to guide model behavior • Maintained labeling quality standards • Met client deadlines in a remote workflow

2023 - 2024

Education

R

Rivers State University

Bachelor of Laws, Law

Bachelor of Laws
2021 - 2025

Work History

F

Freelance

Social Media Marketing Specialist

Port Harcourt
2025 - Present
F

Freelance

Digital Marketing Manager

Port Harcourt
2024 - Present