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C

Chin H.

Data Scientist Intern: LLM Prompt Engineering and Evaluation

Malaysia flagKuala Lumpur, Malaysia

Key Skills

Software

Label StudioLabel Studio
CVATCVAT

Top Subject Matter

LLM (Large Language Model) evaluation
prompt engineering
AI workflow automation

Top Data Types

TextText
DocumentDocument
ImageImage

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Entity (NER) ClassificationEntity (NER) Classification

Freelancer Overview

Data Scientist Intern: LLM Prompt Engineering and Evaluation. Brings 3+ 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, Asia Pacific University (2025) and Diploma, Asia Pacific University (2024). AI-training focus includes data types such as Text and Document and labeling workflows including Prompt + Response Writing (SFT) and Entity (NER) Classification.

Labeling Experience

Data Scientist Intern: LLM Prompt Engineering and Evaluation

TextTextPrompt + Response Writing (SFT)Prompt + Response Writing (SFT)

As a Data Scientist Intern, I developed and evaluated LLM workflows involving prompt engineering and LLM tuning for recommendation and extraction tasks. I built and automated pipelines for LLM evaluation using DeepEval, Uptrain, and Langfuse, focusing on trace retrieval, response quality scoring, and hallucination detection. I engineered both internal and external tools to improve AI model performance and reliability through data annotation and structured feedback loops. • Developed prompt/response datasets for LLM training, tuning, and evaluation • Automated data pipelines for LLM data extraction, annotation, and feedback aggregation • Implemented internal workflows to measure and monitor LLM outputs for relevance and quality • Utilized internal/proprietary tooling with Langfuse, DeepEval, Uptrain, and DSPy for AI workflow engineering.

2025 - 2026

Data Analyst Intern: Document Extraction and Entity Annotation

DocumentDocumentEntity (NER) ClassificationEntity (NER) Classification

During my Data Analyst Internship, I worked on text mining and document extraction projects where I annotated and extracted relevant entities from web-based documents. My responsibilities included researching and implementing techniques for structuring and categorizing extracted document data. I used a combination of rule-based and automated methods to augment entity annotation in large datasets. • Performed entity annotation on web application documents • Implemented document extraction workflows with Flask Framework • Categorized and mapped extracted entities using data pipeline techniques • Leveraged internal/proprietary software with Python and Flask for annotation processes.

2024 - 2024

Education

A

Asia Pacific University

Bachelor of Science, Computer Science in Artificial Intelligence

Bachelor of Science
2024 - 2025
A

Asia Pacific University

Diploma, Information and Communications Technology with a Specialism in Data Informatics

Diploma
2022 - 2024

Work History

H

Hiredly

Data Scientist Intern

Kuala Lumpur
2025 - 2026
A

A-PCCAo n| tAriPbUut ed ATS matching features and Research on self-hosted LLMs (vLLM)

Data Analyst Intern

Kuala Lumpur
2024 - 2024