Justin Martin

Key Skills

Software

Appen

Clickworker

Google Cloud Vertex AI

Mercor

Mindrift

Scale AI

Telus

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Computer Code Programming

Image

Text

Video

Top Label Types

Audio Recording

Bounding Box

Classification

Computer Programming Coding

Data Collection

Emotion Recognition

Entity Ner Classification

Evaluation Rating

Object Detection

Text Summarization

Freelancer Overview

I am an AI Data Specialist with hands-on experience in data annotation, LLM training, and quality assurance, having completed over 2,500 AI training tasks across multimodal datasets, particularly in technology and coding domains. My work includes fine-tuning and evaluating large language models using metrics like BLEU and ROUGE, resulting in a 35% improvement in model accuracy for enterprise clients. I am skilled in Python, SQL, LangChain, and tools such as Hugging Face, Jupyter, and AWS SageMaker. With a strong foundation in IT support and a background in database systems and network security, I am dedicated to delivering high-quality, production-ready data for AI systems and continuously improving model performance.

Labeling Experience

Aether

Scale AIImageBounding Box

Bounding boxes, Removing people from photos, entity video matching

Bounding boxes, Removing people from photos, entity video matching

2025

Education

Work History