- Developed various API test cases with Tarven API testing to test over 50 API endpoints, which spotted 80% of deployment errors, enhancing efficiency by 25%.- Implemented new features to synchronise product data for over 100 merchants, enabling them to manage and edit order information via an online store platform.- Collaborated with a team of 4 to design and develop the backend system of a temporary e-commerce platform using the latest technology of AWS Lambda, S3, DynamoDB.- Decomposed a library package from a single lambda function to a microservices environment with multiple lambda functions, reducing cold start time by 50% and deploying time by 25%.

- Migrated a Unity project to a newer editor version by replacing library functions in C# to utilize the new features of Vuforia (AR Library), enhancing the user experience in controlling the application.- Worked with a team of 4, responsible for designing the game logic flow and developing a VR adventure game for 4-5 players using Oculus Quest 2. The game was designed to be played within 15 minutes in the metaverse development.- Collaborated with the Hong Kong Maritime Museum, responsible for deploying an augmented reality mobile application on iOS using Xcode. Modified the motion tracking from the AR foundation library and changed the user interface to fulfill client requirements.

- Collaborated with Hong Kong EMSD department and worked with a team of 5, responsible for firmware development and implementation

- Developed web crawler for collecting cantonese article of over 50000 and analysed it in database for team's developer to train the dataset