Overview
What this challenge is about.
Analyze a legacy Java/Spring Boot order module, refactor 3 issues, and write unit tests. Earn a verifiable certificate.
The scenario
ShopLocal is a B2B SaaS platform for local retailers, with 500+ clients. The order module handles 10k orders/day and is critical for operations.
The Brief
What you'll do, and what you'll demonstrate.
The legacy order management module is difficult to maintain and test due to high coupling and lack of documentation.
Earning criteria — what you'll demonstrate
- Conduct a systematic code review to identify anti-patterns and technical debt
- Apply refactoring techniques to improve code quality without changing behavior
- Write unit tests using mocking frameworks to ensure correctness
- Measure and compare software quality metrics before and after refactoring
Program Fit
Where this fits in your program.
Sharpens the same skills your degree expects you to demonstrate.
Aligned coursework coming soon.
Skills
Skills you'll demonstrate.
Each one shows up on your verified credential.
- Code Review
Apply code review to solve real industry problems and demonstrate production-level capability.
- Refactoring
Apply refactoring to solve real industry problems and demonstrate production-level capability.
- Java
Apply java to solve real industry problems and demonstrate production-level capability.
- Spring Boot
Apply spring boot to solve real industry problems and demonstrate production-level capability.
- Unit Testing
Apply unit testing to solve real industry problems and demonstrate production-level capability.
- Design Patterns
Apply design patterns to solve real industry problems and demonstrate production-level capability.
Careers
Career paths this challenge builds toward
Completing this challenge demonstrates skills that transfer directly to these roles: