CS fundamentals and OOP

What this bullet means

The employer wants someone who understands algorithms, data structures, classes, objects, interfaces, and how to design software that stays organized as it grows.

Sample app idea

Insurance Quote Rules Lab that models customers, policies, coverage options, eligibility rules, and quote calculations using clear object-oriented design.

Main build outline

1. Create domain classes for applicant, policy, coverage option, quote, and rule result.
2. Add interfaces for quote rules so each eligibility or pricing rule can be tested separately.
3. Use collections and simple algorithms to evaluate selected coverage options and return a sorted quote summary.
4. Write unit tests for at least three rules: approved, declined, and needs manual review.
5. Document the object model and explain why each class has its own responsibility.

Portfolio proof

• Class diagram or README section showing the object model.
• Unit test results for quote rules and edge cases.
• Code sample showing interfaces, services, and small focused classes.

Minimal documentation

• README with the business problem, screenshots, setup notes, and technology stack.
• One requirements note that maps the job bullet to the sample feature.
• One test plan note with happy path, validation, and edge case checks.
• One honest portfolio note that says this is self-directed practice, not employer work.

Modern .NET stack

• Blazor Server or ASP.NET Core Razor Pages.
• C# services with validation and dependency injection.
• SQL Server locally, then SmarterASP SQL Server or Azure SQL.
• Optional Azure App Service, GitHub Actions, Docker, and AI helper feature.