Justin Hadinata

Key Skills

Software

Data Annotation Tech

Top Subject Matter

General Domain Expertise

Top Data Types

Text

Computer Code Programming

Document

Top Task Types

Classification

RLHF

Evaluation/Rating

Fine-tuning

Question Answering

Text Generation

Freelancer Overview

Multilingual Generalist. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Outlier. Education includes Bachelor of Engineering, Hassanudin University (2023). AI-training focus includes data types such as Text and labeling workflows including Classification.

Labeling Experience

AI Data Annotator

Data Annotation TechTextClassification

As an AI Data Annotator at DataAnnotation Tech, I completed assigned data annotation projects for AI training purposes. I closely followed project-specific guidelines to ensure high-quality labeling and performed quality checking and error analysis to reduce annotation inconsistencies. My work contributed to improving dataset usability for downstream AI models. • Delivered tasks punctually in a remote work environment • Applied rigorous attention to detail in labeling and quality assessment • Collaborated with remote teams as needed to align on standards • Supported error analysis and documentation of labeling issues

As an AI Data Annotator at DataAnnotation Tech, I completed assigned data annotation projects for AI training purposes. I closely followed project-specific guidelines to ensure high-quality labeling and performed quality checking and error analysis to reduce annotation inconsistencies. My work contributed to improving dataset usability for downstream AI models. • Delivered tasks punctually in a remote work environment • Applied rigorous attention to detail in labeling and quality assessment • Collaborated with remote teams as needed to align on standards • Supported error analysis and documentation of labeling issues

2026 - Present

Education

Work History