Open to opportunities

Ryan Doh

@ryandoh

Message

I am a data scientist specializing in scalable ML pipelines and model deployment.

United States

Message

What I'm looking for

I seek roles focused on scalable ML model development and deployment (AWS SageMaker, XGBoost) on collaborative teams that prioritize rigorous evaluation, reliable data pipelines, and technical growth.

I am a data scientist with hands-on experience building and deploying machine learning models using Python and AWS SageMaker. I led automation of ML workflows that reduced manual intervention by 60% and improved XGBoost model accuracies by 5-10%.

I built a recommendation system to uncover implicit coverage rules in healthcare claims data and engineered end-to-end data pipelines using AWS S3 for robust model training. I hold Google Advanced Data Analytics and Google Data Analytics professional certificates and deliver reproducible, high-quality results through rigorous evaluation and feature engineering.

Experience

Work history, roles, and key accomplishments

Current

Associate Data Scientist

Current

Xifin Incorporated

Jun 2025 - Present (2 months)

Built a recommendation system in Python using XGBoost to uncover implicit coverage rules in healthcare claims, improving prediction accuracy and streamlining decision support. Led collection of large datasets from AWS S3 and implemented robust data cleaning and transformation pipelines to ensure high-quality model inputs.

Python XGBoost Recommendation Systems AWS S3 Data Cleaning Model Evaluation Machine Learning

Data Science Intern

Xifin Incorporated

Feb 2024 - Jun 2025 (1 year 4 months)

Led automation of ML workflows, improving model deployment efficiency and reducing manual intervention by 60%. Used AWS SageMaker to train and deploy scalable models and improved XGBoost prediction accuracy by 5-10%.

AWS Sagemaker XGBoost Python Machine Learning AWS S3 Data Engineering Model Evaluation

Education

Degrees, certifications, and relevant coursework

University of California, San Diego

Bachelor of Science, Data Science

2021 - 2025

Grade: 3.6

Bachelor of Science in Data Science awarded June 2025 with a cumulative GPA of 3.6. Coursework included Theoretical Foundations of Data Science, Exploratory Data Analysis and Inference, Practice and Application of Data Science, and Intro to Data Mining.