Jeffrey Sun Email & Phone Number

Calgary, Ab, Ca

加拿大 艾伯塔 卡尔加里

·Designed and implemented notification systems to deliver real-time alerts and updates to users via email.·Implemented a modular API architecture, enabling easy versioning and extension, and reducing development time for new features by 20%.·Implemented a message queue system, decoupling system components and enhancing fault tolerance, evidenced by processing 26,000,000+ messages with only 2000+ failures, resulting in a failure rate of merely 0.008%.·Introduced Redis caching to optimize application performance, and designed caching strategies to store frequently accessed data, achieving a 76% reduction in response times.·Maintained a test coverage of 88%, ensuring testing of critical functionalities and early detection of potential issues.·Designed and implemented a Public Key Infrastructure system, utilizing a private Certificate Authority to issue and manage certificates for authorized personnel.

·Enhanced system reliability, performance, and functionality by implementing unit, integration, and tests, achieving an 82% test coverage.·Adapted quickly to fast-paced development environments using tools like Microsoft Planner for project management.·Conducted code reviews and led refactoring efforts to ensure the code followed modular design principles and industry best practices.

Edmonton, Canada Area

·Designed and developed RESTful APIs to facilitate communication between front-end and back-end systems, ensuring clarity, consistency, and scalability.·Implemented design patterns such as MVC (Model-View-Controller) to structure applications into cohesive and loosely coupled modules.

Edmonton, Canada Area

· Provided exceptional client service experience to achieve client’s shopping goal· Handled cash, credit, and debit transactions· Effectively handled client objections and helped colleagues deal with client complaints· Identified cross-selling opportunity through active listening and made recommendations to improve the client’s experience· Delivered professional and customized client services through strategic marketing and comprehensive product presentation to exceed sales target

Edmonton, Canada Area

Research Topic: An Artificial Neural Network Model for Weather Forecasting in Advanced Irrigation Systems· Developed an artificial neural network (RNN) model with application in weather forecast of advanced irrigation systems. · Advanced the RNN prediction model; optimized the prediction error for wind speed to ~4%.

Edmonton, Canada Area

· Co-founded and recruited 50+ team members to compete International Robomasters Competition· Placed 1st in Canada and 38th in the world during the club’s inaugural year· Liaised with mechanical and computer engineer teams to design 6 different robots· Developed tasks in the RTOS system for the control and communication system of the robots· Modeled induction motor to improve the performance of the gimbal system· Designed the schematics and PCBs to provide the rated power for robots

Edmonton, Canada Area

· Led a team of 10 members and organized 4 club events to host 2,000 university students· Organized facilities and managed all event’s details such as promotional material, transportation, decor and catering· Interacted with multiple sponsors and vendors to ensure event materials and venue bookings were completed in advance of scheduled events