In the role of a DevOps Engineer at 104 Corporation in Taiwan (May 2021 - August 2023), I successfully implemented security measures by building an AES SDK with HashiCorp Vault. I adhered to AWS Best Practices using tools like AWS Trusted Advisors and AWS Config Managed Rules, ensuring the scanning of all accounts. Automation played a key role in my responsibilities, as seen in the use of AWS CDK, TypeScript SDK, and Travis CI to automate AWS network infrastructure. Notably, I reduced AWS VPC costs by 25% through the implementation of a centralized VPC Endpoint Access using AWS Transit Gateway architecture. I also led the migration of the company's AWS account to a new management account within AWS Organizations, utilizing automation scripts and designing a new Organizational Unit Structure and service control policy. Prior to this, I served as a Back End Developer at 104 Corporation (May 2018 - May 2021), contributing to the development of features for "pro.104.com.tw." I actively participated in a website architecture reconstruction project, transitioning from server-side rendering to client-side rendering. I also built an Image Converter using AWS Lambda, SQS, and NodeJS. Additionally, I conducted code reviews to enhance the overall code quality of the team. During my tenure as an Android Developer at E-LEAD in Taiwan (May 2016 - March 2018), I specialized in developing Android applications for In-Vehicle Infotainment Systems, including features such as External Media Player, DVD, and FM/AM Radio. My professional journey began as a Research Assistant at NSRRC in Taiwan (September 2015 - February 2016), where I gained exposure to research activities. Overall, my expertise encompasses a wide range of technologies, including Python, AWS, Docker, Vault, TypeScript, Vue, NodeJS, PHP, SQL, and Java. My experience reflects a versatile skill set, covering development, infrastructure management, security, and successful project contributions.