Duo Zhang is a backend software engineer with 12 years of industry experience and five years focused on building and operating production-grade, distributed systems at Salesforce. He has deep expertise in log ingestion, data platforms, cloud infrastructure, and security-critical services, having led architecture uplifts that cut customer Splunk query wait times by 60% and boosted throughput via parallel processing. Duo has bridged analytics and operations—connecting Trino and Athena for historical log search and building a full-stack data portal used by 200+ customers—while also driving security and cost optimizations as a team champion. Comfortable across Python, Java, React, and AWS, he brings a pragmatic full-stack mindset backed by machine-learning internship work that improved model accuracy substantially. Based in Seattle and now at Microsoft, he supplements his production focus with open-source mobile and macOS contributions that demonstrate attention to UX and cross-platform polish.
12 years of coding experience
6 years of employment as a software developer
Bachelor of Science - BS Finance, Bachelor of Science - BS Finance at Nankai University
Bachelor of Science - BS Logistics Engineering, Bachelor of Science - BS Logistics Engineering at Tianjin University
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Northeastern University
Exchange program Data Science, Exchange program Data Science at Nanyang Technological University Singapore
Contributions:9 releases, 64 commits, 15 PRs in 5 years 6 months
Contributions summary:Duo primarily worked on implementing features and making improvements to the macOS application. They added new functionalities, such as allowing the user to specify an output path and providing a replace option. The commits demonstrate the user's involvement in UI design, application configuration, and integrating third-party libraries like Alamofire for network requests. These changes suggest a focus on enhancing the user experience and application functionality.
A cute widget of Switch Button for you to create beautiful and friendly UI.
Role in this project:
Mobile Developer (Android)
Contributions:132 commits, 8 PRs, 79 pushes in 6 years 10 months
Contributions summary:Duo primarily focused on the development of the `switchbutton` widget for Android applications. Their contributions include improvements to the widget's functionality, specifically adding features for more flexible checked states, fixing thumb color states, and general updates. Furthermore, the user added features related to text displayed on the switch button, and performed refactoring on the codebase.
widgetbuttonbutton-switchflutterswitch
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