Liangyi Yin
- Role
- Software Engineer at Walmart Global Tech
- Location
- San Jose, CA, US
- LinkedIn followers
- 500 followers
Experience
Software Engineer
Apr 2025 — Present · Sunnyvale, CA, US
Upgraded internal services to Java 17 and Spring Boot 3, improving system performance, security, and maintainability.Refactored and enhanced GraphQL APIs, including schema updates, resolver logic, and new queries/mutations to support evolving business needs.Implemented comprehensive Spring Boot microservice architecture with layered design (Controller-Service-ServiceImpl-Repository) to handle item price update logic, ensuring separation of concerns and maintainable codebaseEnsured reliability through comprehensive integration, unit and end-to-end testing, collaborating with QA and frontend teams to validate API integration.
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