Jay Zhang Email & Phone Number

California, United States

• Develop backend RESTful APIs using Node.js and Express to support the company’s first business intelligence tool
• Implement API authentication and role-based access controls (RBAC) using OAuth2.0 and JWT to ensure security
• Build event-driven microservices using AWS Lambda, S3 and CloudFront and provisioned these resources using AWS CloudFormation, reducing report thumbnails retrieval time by 80%
• Optimize React state management to eliminate unnecessary re-rendering, improving page load time by 30%
• Build custom responsive UI components including a text editor using React and CSS to enable harmonious UI
• Create stored procedures and write complex SQL to simplify and optimize query operations in Snowflake Database

• Built a social web application for families
• Built a microservice using Spring Boot to support CRUD operations of families, users and messages data
• Created a WebSocket connection with Stomp to enable real-time messaging and broadcast latest updates to clients
• Wrote Dockerfiles and containerized frontend, backend and database separately for deployment in AWS

• Built a full-stack web application to generate restaurant recommendations in a conversational setting powered by chatGPT
• Designed and implemented complex server-side logics to integrate OpenAI API with Yelp API including an algorithm that parses GPT text responses and parametrizes restaurants names to retrieve restaurants details from.
• Set up user authentication using Firebase and configured the saving recommendation feature for only signed-in users

• Built a mobile application called VillageSports to foster community participation in sports and help users discover and organize local sports leagues
• Built a map with interactive markers and nearby search feature using react-native-maps to help users explore locals
• Integrated multiple components in the app and created the customized navigation header by using react navigation
• Built a database using Firebase to persist user information and enable creating and modifying user-specific leagues

• Architected and built the backend system for the e-commerce website using RESTful API and PostgreSQL
• Built a RESTful API with Node.js and Express and implemented caching using Redis to decrease latency by 20%
• Imported ~10million records using PostgreSQL and lessened retrieval time to 25ms by Hash index and complex queries
• Scaled the backend by deploying 3 AWS EC2 instances and the load balancer using Nginx to maintain 2000 RPS

• Built the rating and review component to renovate an e-commerce website
• Created the rating and review UI with React for an e-commerce website including star rating and modal components
• Optimized data flow in the front-end consisting of 10+ components using UseContext Hook to eliminate props passing

United States

• Collaborated with clients to ascertain business needs, develop analyses plans and synthesize data into business insights
• Performed quantitative analyses including linear modeling and classification to drive business insights, such as identifying growth opportunities within the market segmentations and understanding the effectiveness of.
• Managed the project teams by building training plans, providing guidance on analyses and planning/allocating workstream
• Provided operational data support for client’s new data warehouse and Field BI dashboards; Responsibility includes educating users on the data tools and datasets, providing data access to business users and identifying.
• Supported ETL process by translating business requirements into actions for developers, assessing/profiling the source data, building standard procedures for data validation, and answering data inquiries from business.

San Francisco Bay Area

Bachelor Of Arts - Ba, Economics

Education record

12-week software engineering immersive program with over 1000+ hours of coding. Full-Stack development with JavaScript, React, Express.