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J

Joseph Hark

AI Data Trainer / Prompt Engineer

USA flagWest Haven, Usa
Intermediate

Key Skills

Software

No software listed

Top Subject Matter

General Knowledge
Math Domain Expertise
Science Domain Expertise

Top Data Types

TextText
Computer Code ProgrammingComputer Code Programming

Top Task Types

No task types listed

Freelancer Overview

AI Data Trainer / Prompt Engineer. Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, Brigham Young University–Idaho (2022). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Intermediate

Labeling Experience

AI Data Trainer / Prompt Engineer

Text
I evaluated and improved AI-generated responses for various knowledge domains to enhance model accuracy and user experience. My work included designing and testing prompts to optimize AI outputs and annotating datasets for supervised learning. I identified edge cases and followed detailed guidelines to produce high-quality training data. • Evaluated responses in subjects such as Math, Science, English, and Programming. • Designed prompts and tested for performance consistency. • Annotated and labeled text datasets to improve supervised learning. • Provided critical feedback on model outputs and edge cases.

I evaluated and improved AI-generated responses for various knowledge domains to enhance model accuracy and user experience. My work included designing and testing prompts to optimize AI outputs and annotating datasets for supervised learning. I identified edge cases and followed detailed guidelines to produce high-quality training data. • Evaluated responses in subjects such as Math, Science, English, and Programming. • Designed prompts and tested for performance consistency. • Annotated and labeled text datasets to improve supervised learning. • Provided critical feedback on model outputs and edge cases.

2025 - Present

Education

B

Brigham Young University–Idaho

Bachelor of Science, Web Design and Development

Bachelor of Science
2018 - 2022

Work History

D

Dollar Tree

Cashier and Stocker

West Haven
2025 - Present
S

San Antonio Regional Hospital

Web Development Intern

San Antonio
2022 - 2022