Yiren Chang Email & Phone Number

Aspiring Software Development Engineer with hands-on experience in full-stack web and mobile development, demonstrated through personal projects and academic coursework. Well-versed in technologies such as Next.js, React.js, Node.js, MongoDB, and AWS. Participated in a virtual back-end engineering internship experience with Lyft, focusing on system architecture and Test-Driven Development (TDD). Passionate about optimizing performance, adhering to clean code principles, and delivering robust solutions. Open to SDE intern positions where I can further develop my technical skills and contribute to innovative projects.

• Software Development Engineer Intern

  Qiling Medical Co., Ltd.

  May 2022 - Aug 2022

  Engaged in the Medical Device Team to establish an Medical Device inventory management system Spring Boot and React.js, served over 1000 customersIntroduced Redis to cache frequently accessed data on existed MySQL database, reduced reponse time by 70%Created and performed more than 50 automated unit tests with JUnit and Mockito, expanding code coverage to 87%, minimized bugs introduced in new features deploymentIntegrated with service perfromance monitoring API to lead and deliver the development of service observability system using JavaScript with React.jsCollaborated with product team and UX Designers to analyze requirements, API dependencies and drive engineering projects to completion with extensive customer business impact