Backend / Full-Stack Engineer with 2+ years of production experience building RESTful APIs and cloud-native services on AWS and Azure. Skilled in C#, Node.js, and TypeScript. Relocated to Toronto to deepen cloud and mobile expertise at George Brown College — currently targeting Backend or Full-Stack Engineering roles in the Greater Toronto Area.
Integrated RESTful APIs with third-party payment systems, orchestrating data flows between internal services and external payment providers across a platform processing thousands of daily transactions.
Built logging and diagnostic tooling for payment transactions, cutting average incident investigation time by ~50%.
Optimized complex MSSQL queries and indexing strategy on high-traffic payment reporting tables, reducing query execution time by ~60% and eliminating timeout errors during peak periods.
Software Engineer
Harmonation Inc.
November 2020 – April 2021 • Taipei, Taiwan
C#Windows ApplicationsMSSQLBanking Systems
Built and maintained C# Windows desktop applications for banking workflows, reducing transaction processing steps for tellers and cutting average task completion time.
Designed MSSQL data-access layers and stored procedures, improving data retrieval performance by ~40% across core banking modules.