Tsz Yan Au Email & Phone Number

Waterloo, On, Ca

Sunnyvale, California, United States

San Francisco, California, United States

VHQ Android! Huddles and Clips :)

Montreal, Quebec, Canada

ReCaptcha Enterprise Mobile SDK team• Implemented a new signal collection engine on Android which improved signal collection speeds by up to 95%• Refactored server-side structure to isolate mobile-specific signals from web, allowing for new signals to be added easily• Implemented benchmarking and visualized data to help quantify direct impact

Vancouver, British Columbia, Canada

Slack Canvas Android Team• Designed and implemented blue/grey user mentions on Android (Kotlin) in canvases depending on their access level, and also show a "Not in canvas" string in the autocomplete• Retrieved user permissions through network calls using RxJava and Kotlin Coroutines• Developed flow to prompt users to share a canvas when a grey mention is tapped, with options to customize their access level

Waterloo, Ontario, Canada

• Revamped interface for 5 features according to provided Figma designs.• Improved accessibility by increasing support for increased font and display size, and dynamically resizing text if required.• Investigated migrating to Android App Bundle as a publishing method and presented suggestions to the product manager such as which new features we should utilize.• Refactored and moved over 400 attributes from layout files to styles, allowing similar views to reuse the same style for easier maintenance.

• Implemented changes needed for optimistic locking using TypeScript (Angular) to ensure customers do not edit outdated data. ∗ Retrieved current version number using backend call and pass it on to the update request to allow backend to verify the version number.• Developed an interceptor to handle HTTP errors and provide relevant error messages to the user to increase transparency to customers. ∗ Restructured logic to display snack bar so error messages corresponding to correct internal error code will show up, allowing users to have a better idea of the issue.• Refactored and combined 9 components to reduce over 800 lines of repetitive code to improve maintainability.

• Improved navigation interface and overall design for internal website built using the Java Server Pages to allow for quicker access. ∗ Redesigned file navigation interface to a grid design in alphabetical order rather than all over the place. ∗ Sorted app releases based on newest to allow coworkers to find required versions easier.• Wrote unit test cases for 4 mobile services using JUnit and Mockito to ensure code coverage is above 85%.• Designed and won best branding for an algorithm design competition.

• Collaborated with another web developer and a UX designer to build project wiki page using React, to introduce a new quantitative tool to aid the diagnosis of ADHD.• Built accessibility toolbar including features such as changing font size and light and dark mode to allow website to be accessible to a larger audience.

Hong Kong Sar

• Designed and developed using React, Node.js, Heroku for deployment, and Firebase for authentication and database to allow over 150+ teachers and staff to request professional development workshops.• Implemented features such as sending automated emails and generating PDFs upon request approval to keep everyone notified.• Worked alongside 3 school administrators as my clients to identify requirements and ensure the website interface is intuitive.

Hong Kong Sar

• Created 2 week lesson plans for high school students covering 11 topics such as designing HUDs and handling in-game collisions using Java and the LibGDX framework.• Delivered lessons to 14 students virtually through Zoom while providing real-time debugging assistance and feedback.• Introduced to the overall process of game development, and how to help troubleshoot and guide students virtually.

• Developed and pitched a mental healthcare app alongside 3 team members using Java with Android Studio and Firebase.• Collaborated on designing the overall app layout and user interface. • Learned how to write a business plan, research and consult experts, and implement changes according to user feedback.

Hong Kong Sar

• Brainstormed advertising and marketing campaigns for Colgate-Palmolive. • Pitched campaign ideas for upcoming products alongside other interns with guidance from experts in the field. • Experienced different companies’ work environments and the workflow of a professional advertising project.

Bachelor Of Computer Science, Computer Science

Activities and Societies: HKSA, Culture and Language Exchange Club Relevant Courses: Data Structures and Data Management, Algorithms.

International Baccalaureate Diploma Programme (Ibdp)