Full-stack project primarily a backend (Java) evaluation

Basic understanding of how data flows
Ability to debug if something breaks
Testing APIs via Node/React

Java Backend Skills
API development
Validation
Error handling
Logging
Code quality

Frontend → Backend (Node.js) → Backend (Java)

Frontend
Built with React
Displays users and tasks

Middle Layer (API Gateway)
Built with Node.js + Express.js
Forwards requests to Java backend

Core Backend
Built with Spring Boot
Handles business logic, validation, data

The task will be to work on the existing code base.