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 that increased QPS by 30%, using Python, RabbitMQ and Docker

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