Emmanuel A.

Key Skills

Software

Other

Data Annotation Tech

Top Subject Matter

AI model training

prompt evaluation

and ML dataset labeling

Top Data Types

Text

Image

Document

Top Task Types

Text Generation

Data Collection

Freelancer Overview

I have experience working with data annotation and structured content review in environments that require high attention to detail, consistency, and accuracy. My background as a QA Analyst has strengthened my ability to identify inconsistencies, follow annotation guidelines, validate outputs, and maintain data quality across large volumes of information. I have worked with structured reporting, bug documentation, data validation, and workflow management, which are highly transferable to AI training data and labeling operations.

Labeling Experience

Blockchain & Web3 QA Tester (Independent Testnet Contributor)

Don't discloseText

Contributed to blockchain testnet quality checks by validating wallet interactions and transaction flows during decentralized application testing. Conducted functional and exploratory testing of smart contract and DApp behaviors to support reliability of Web3 systems. Documented and reported usability issues and defects discovered during testnet phases. • Tested wallet interaction and transaction validation • Verified smart contract interaction behaviors • Performed functional and exploratory DApp testing • Reported usability issues and network performance findings

2021 - Present

AI Trainer & Data Annotation Specialist

OtherTextText Generation

Provided AI response evaluation to improve model accuracy and consistency across generated outputs. Designed and tested prompts to enhance AI training results and guide response quality. Performed data annotation and labeling for machine learning datasets, then reviewed labeled outputs for quality and consistency. • Evaluated AI-generated responses for accuracy • Designed test prompts for training improvement • Performed dataset annotation/labeling • Conducted quality and consistency review of AI responses

2025 - 2026

Education

Work History