Stefanie Low

Design and develop scalable full-stack solutions using AWS cloud-native services for the NUHS mobile app, serving over 700,000 patients. Collaborated closely with cross-functional teams in an agile environment to deliver robust application. • Backend and Cloud Expertise: Contributed to migrating 100+ AWS Lambda functions and batch jobs, architected with Onion Architecture, within 5 months to support modernization efforts. Established cloud infrastructure using Infrastructure as Code (IaC) via AWS CDK, optimizing deployment workflows and ensuring consistent scalability across environments. • Full-Stack Development: Expanded into full-stack development, contributing across both frontend and backend initiatives • Engineered and deployed a scalable, event-driven data lake using AWS services, ensuring high availability and performance at scale. Now in production, it serves as the foundation for the department’s data lake architecture guidelines, enabling data-driven insights through analytics, streamlining troubleshooting, and enhancing operational efficiency.

• Involved in implementing AWS serverless cloud native services such as Lambda and DynamoDB for OneNUHS application • Assist in the migration to FHIR (Fast Healthcare Interoperability Resources) APIs • Assist in developing RESTful APIs using Typescript and AWS services (Lambda, DynamoDb, API Gateway, Cognito and etc.) for internal administration React application

• Collate and reconcile claims statistic from large raw datasets using Python • Perform year end claims analysis using PowerBI and Tableau • Built a web scraping tool to automate the process of collating insurance data statistics of other companies and automate Excel reporting with Python • Translate actuarial models from Excel’s VBA to Python to handle large volumes of data