Matianqi Song

Experience

• 

  Sunny Optical Technology (Group) Co. Ltd.

  May 2018 - Aug 2018

  Software Engineer(AR/VR)

  • Created an employee self-service software for the HR department, facilitating access to personal details, company announcements, leave management, and pay information, resulting in a 50% increase in HR working efficiency.• Developed a 3D solar system using Unity within the QA team, conducting comprehensive testing on HoloLens and Sunny Optical's VR helmet to validate the superior game effect of Sunny Optical's self-designed VR helmet over HoloLens, resulting in an 80% reduction in testing time.• Achieved comprehensive test coverage by coding unit tests for the employee self-service software, ensuring a 100% coverage rate and validating its functionality and reliability. Show less

• 

  New York City Department of Transportation

  Jun 2022 - now

  Software Engineer

  • Successfully enhanced the React web application by adding a sorting feature using Redux and Axios services, enabling users to sort requisitions based on various options from a dropdown menu, including date, address, and amount, through the implementation of corresponding Ruby on Rails controllers and services.• Developed a robust "Latest Updated Date" API from the ground up for the Street Parking Information Website project, serving approximately 100K daily active users and achieving a significant 50% reduction in date fetching time through optimized JSON file transmission via serialization and deserialization.• Streamlined requisition management by developing the "Signs Count" feature and implementing optimization techniques in the requisition service, resulting in a significant reduction of page loading time from approximately 5 seconds to an impressive 0.1 seconds.• Successfully implemented an "alert on order completion" feature for approximately 2000 employees by developing email service and order-subscription service, resulting in a substantial increase in daily productivity with ~10,000 completed tasks.• Developed a "pdf-generating" feature by utilizing the wkhtmltopdf open-source library to seamlessly render HTML into PDF files and integrate them with user-selected sign images from a vast collection of approximately 2,700,000 sign images within the system.• Demonstrated proficiency in implementing agile methodology with a two-week sprint cycle, adeptly utilizing Jira to track project progress, actively engaging in daily stand-up meetings, conducting comprehensive code reviews, participating in sprint plan reviews, and collaborating with stakeholders to incorporate user stories into the backlog.• Proficiently deployed new features into production using Jenkins, while efficiently building Docker images on Dev, QA, and UAT servers.• Generated 100% coverage RSpec tests for email and subscription services to ensure sending messages to subscribed users Show less