Cunjun Wang Email & Phone Number

Hangzhou, Cn

Hangzhou, Zhejiang, China

- In accordance with the group's changes in the positioning of the LiteTao business, I served as the technical PM for the project that directing the LiteTao traffic to Taobao Mobile App. This helped shape LiteTao as an essential distribution channel for price-sensitive users within the larger Taobao ecosystem, while maintaining independent operations and a unique shopping service experience on the LiteTao platform.- I undertook daily requirements for businesses such as LiteTao, Idlefish, TaoFresh & TaoFruits, and Tmall Luxury. Within the scope of these services, I provided comprehensive support for e-commerce transactions, including shopping cart, order placement, forward and reverse fulfillment, and more. This support encompassed business requirement assessment, solution design and review, and development implementation.

Hangzhou, Zhejiang, China

- Participated in the architecture upgrade of the core transaction system (shopping cart, order placement, forward and reverse fulfillment). The architecture was horizontally split into four independent layers: view, logic, data, and business extension. Vertically, we abstracted the combination of basic "commercial capabilities" such as transactions, marketing, inventory, settlements, and users.- Deeply involved in the development of "transaction commercial capabilities." Implemented general business processes for the shopping cart, order placement, and refunds. Through the SPI extension mechanism, we provided extension capabilities to various businesses, supporting daily services across the entire transaction process for Tmall Luxury, Maoxiang Self-operated shop, and other businesses, as well as participating in major promotional events such as 6·18 and Double 11.- Based on the group's legal and compliance requirements, I served as the responsible person for transactions in the business middleware platform, promoting the independent deployment and architecture evolution of Alibaba Life Services (ALSC). This improved autonomous operation flexibility and realized the isolation of traffic, data, and changes between Taobao and ALSC. I sorted out the business logic, middleware, configuration items, and upstream and downstream dependencies related to local life services in the transaction system, designed independent deployment and traffic-cutting solutions, and ultimately implemented them.

Seattle, Washington, United States

Team: Managed Prometheus/Grafana- Composed OpenTelemetry C++ Prometheus Exporter design document and filed a PR for review.- Developed the C++ Prometheus Exporter and integrated with C++ Prometheus client.- Wrote test document, designed unit test cases, and implemented with Google Test framework.- Modified CI/CD scripts and integrated with the C++ Metric team to test the flow of data.- Configured Doxygen in the project generated and released a project technical document.

Shanghai City, China

- Developed server-side REST APIs for order service to support user operations of online orders with Spring Boot and Mybatis.- Implemented client-side functions to update inventory and user coupons in the life cycle of an order using REST template and Feign.- Resolved distributed database transaction problems by redesigning underlying logics to avoid them.- Designed scheduled jobs to periodically monitor order and stock data, and a notification mechanism when mismatches are found.- Introduced distributed Redis lock on transactional functions to avoid duplicated orders and click farm. - Wrote configuration and deployed services in Docker containers, and managed services on Consul.- Added and maintained Zuul configuration to make API exposed from order service reachable by domain.

Shanghai City, China

• Trained a model using 10000 images for the MNIST dataset. Developed and application (in Python and Javascript) to accept a user input from drawing with mouse, to show the prediction and to save the input and result data to a Cassandra database. With convolution neural network, a test accuracy of 99.2% was obtained on a dataset consisting of 10000 images, and a 95% accuracy on user input.• Wrote Dockerfile to made a docker image for the application.

Vancouver, Canada Area

Taught 5 mathematics courses in calculus and linear algebra to 70 students in total. All students got final mark above average and 50% got an A grade (greater than 80).

Master Of Science - Ms, Computer Science

Bachelor Of Science - Bs, Computer Science

UBC Trek Excellence Scholarship (top 5%, Fall 2016), J Fred Muir Memorial Scholarship in Science (top 0.5%, Fall 2016), UBC Science.

High School, High School