Zifeng Guo Email & Phone Number

Toronto, Ontario, Canada

Toronto, Ontario, Canada

Montreal, Quebec, Canada

• Implemented a new microservice architecture for a 500+ user application by leading the project end-to-end from the initial discussion phase to the production launch using Java Spring, ReactJS, SQL, and Hibernate.
• Achieved a 50% increase in CPU usage and a 26% reduction in memory usage through rigorous testing and data collection, resulting in improved system efficiency in Kubernetes and faster response time for end-users.
• Led the new architecture discussion, designed the test plan and deployment plan, launched the project end-to-end into production, and collected metrics to validate the results.
• Built and deployed a buffer queue layer to handle the increasing higher throughput for core business microservices that are used by 1000+ clients, replaced the current direct RestAPI calling with an asyncronized model.

Kingston, Ontario, Canada

• Trained the Deep Neural Network using TensorFlow & Keras to classify 50 million real-world hand-sketch images and obtain correlation matrices for determining the top 200 highly correlated object categories.
• Deployed the model manually on the university’s advanced computing server cluster to optimize performance.
• Optimized the correlation matrix using Principal Component Analysis (PCA) to reduce the variance by 30% compared to the original approach.
• Analyzed over 90 users’ data using Pandas and Scikit-learn to test the classifier to classify data with 90% accuracy.

Master'S Degree, Computer Science

Bachelor Of Computing(Hons.), Cognitive Science