Troubleshooting and root cause analysis

What this bullet means

The employer wants a developer who can slow down, trace the problem, explain what failed, and describe how it was fixed.

Sample app idea

Website Issue Resolution Tracker with bug reports, reproduction steps, affected systems, root cause, fix notes, and follow-up status.

Main build outline

1. Create issue records with symptoms, reproduction steps, affected environment, suspected cause, and final resolution.
2. Add categories for application bug, database issue, server configuration, network dependency, and content problem.
3. Add a root cause field that is separate from the temporary workaround.
4. Create a corrective action checklist for tests, deployment notes, customer update, and follow-up verification.
5. Document one sample issue from report to final fix using synthetic data.

Portfolio proof

• Issue tracker screenshot showing symptom, root cause, workaround, and corrective action.
• Before-and-after note for one resolved website or data issue.
• Test or verification notes showing how the fix was confirmed.

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.