Badges
Certifications
Work Experience
iOS Developer
Veil•  July 2020 - Present
• Led a team of 3 in developing an iOS app using Cocoa Touch frameworks, design patterns and APIs; Veil enables professionals from Am Law 300 firms to share compensation details, views on current events and position openings anonymously. • Applied socialization functionalities in Swift with UIKit and Foundation, incl. browse, comment, chat and discussions/polls. • Improved user experience through use of Firebase and Realm to establish relational database and local data persistence.
Full-Stack Web Developer
Peacock•  April 2020 - July 2020
• Designed and built a full-stack RESTful web app that generates customized party cocktail menus and shopping lists. • Engineered dynamic front-end interface powered by React web components built with Bootstrap and Material UI. • Implemented back-end with Node.js and Express, enabling cocktail recommendation, menu generation and etc. • Established data persistence with MongoDB and third-party authentication with OAuth, decreasing sign-up time by ~ 50%. • Employed Beautiful Soup, Pandas and Urllib with Python to optimize ~80% of 300+ proprietary recipes via web scraping.
Java Backend Developer
Fern•  February 2020 - July 2020
• Increased plant nurseries’ efficiency in coordinating order logistics by ~60% through developing a Spring Boot web app in a team of 3; the app follows multi-tier architecture and uses Maven to automate build. • Fulfilled data access layer with Hibernate (JPA), following the repository pattern, and served data from MySQL. • Applied JSON Web Token (JWT) alongside hashing and salting with bcrypt for user authentication and authorization. • Achieved >80% coverage by unit tests built with JUnit and Mockito; performed integration tests with Selenium and Log4j. • Configured a CI/CD pipeline with Jenkins and deployed the app using AWS and Docker.
Education
Columbia University, New York
Computer Science, MS•  August 2020 - Present
Duke University, Durham
Statistics, BS•  August 2013 - May 2017
Columbia University, New York
MS
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Skills
yizhoujiangyizh1 has not updated skills details yet.