About Me

Full-Stack Engineer with 5+ years of experience, including 3+ years in professional backend and payment system development. Skilled in end-to-end application architecture — from RESTful API design and relational database schema planning to AWS cloud infrastructure. Proficient in AI-assisted development using tools like Claude and Cursor, and experienced in integrating LLM APIs into production applications. Grounded in TypeScript, Node.js, C#, and modern full-stack technologies, with ongoing cloud computing studies at George Brown College.

AboutExperience

Experience

Professional experience and career achievements.

Backend Engineer

Collaborate Technology

April 2021 – August 2023 • Taipei, Taiwan

C#RESTful APIsMSSQLPayment SystemsClaudeDatabase Optimization

Integrated RESTful APIs with third-party payment systems, orchestrating complex data flows between internal services and external payment providers
Leveraged Claude to accelerate debugging and code review cycles — surfacing edge cases in payment transaction logic before QA handoff
Implemented robust logging mechanisms for payment transactions; used Claude Code to rapidly scaffold diagnostic scripts and log parsers
Managed and optimized complex MSSQL operations, using Claude-assisted query analysis to identify index improvements and reduce execution time

Software Engineer

Harmonation Inc.

November 2020 – April 2021 • Taipei, Taiwan

C#Windows ApplicationsMSSQLBanking SystemsClaude Code

Tailored Windows desktop applications for banking workflows in C#, improving transaction processing speed and reducing UI friction for tellers
Used Claude Code to prototype and iterate on MSSQL data-access layers, enabling faster delivery without sacrificing code quality
Implemented optimized database queries and stored procedures, improving data retrieval performance across core banking modules