# Siyu Sun

> Software Engineer at Microsoft

Location: Atlanta, Georgia, United States
Profile: https://flows.cv/siyusun

• Programming languages:​ Java, C#, JavaScript, TypeScript, Python
• Web development: ​Angular, React, Node.js, Rest API, AJAX, Socket.io, Express 
• Database:​ Redis, MongoDB, MySQL, AWS
• System/tools:​ Unix/Linux, Git, Docker, Kubernetes, Nginx, RabbitMQ, Auth0, CI/CD, Jenkins, TestNG, JUnit

## Work Experience
### Software Engineer @ Microsoft
Jan 2021 – Present | Atlanta, Georgia, United States

### Software Engineer @ PayPal
Jan 2020 – Jan 2020 | California, United States
• Implemented the account linking service in a Java Maven framework to combine multiple accounts (e.g., IZettle, Xoom, etc.) to a single PayPal account
• Refactored the data flow of http CRUD requests to reduce the latency of searching and adding users
• Optimized the data model and business logic of onboarding services to synchronize different accounts for any given single user
• Improved functional and unit test coverage by using Mockito and JUnit/TestNG framework

### Full Stack Engineer @ AppToSucceed
Jan 2019 – Jan 2020 | United States
• Designed interactive pages of the training application by using Angular and REST APIs that improved the user experience
• Implemented a glossary-word service by designing a service plugin to show the definitions of financial terms that improved the efficiency of development
• Refactored front-end code by creating generic components to increase the speed of loading web pages

### Software Engineer Intern @ DaoCloud.io
Jan 2018 – Jan 2018 | Shanghai, China
• Implemented a plugin of cloud service in the Kubernetes cluster and improved the deployment efficiency 
• Built a test environment with the 5-node Kubernetes cluster and the F5 load balancer to handle high concurrent transactions at peak time
• Deployed the Ceph, Redis and NGINX servers in the cluster and increased the transaction processing speed
• Created python API documentation and designed web pages using Angular that received the highest customer satisfaction


## Education
### Master's degree in Computer Science
The George Washington University - School of Engineering & Applied Science
Jan 2017 – Jan 2019

### Bachelor's degree in Electrical Engineering and Automation
Northeast Agriculture University
Jan 2012 – Jan 2016


## Contact & Social
- LinkedIn: https://linkedin.com/in/siyu-sun-97b1a5139

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Source: https://flows.cv/siyusun
JSON Resume: https://flows.cv/siyusun/resume.json
Last updated: 2026-03-29