Create and put into practice a strong ASP.NET Core rate-limiting solution to protect REST APIs from misuse and denial-of-service (DoS) attacks. Requirements Advanced Expectations (Bonus) Deliverables Skills Demonstrated [...]
Design and implement a production-grade password management system in .NET that follows modern security standards. The solution must securely store and verify user credentials using cryptographic hashing, unique salts, and industry-recommended best practices to protect against common attack vectors. Key Requirements Technical Stack Expected OutcomeA reusable, secure authentication component that [...]
Design and implement a custom ASP.NET Core middleware that logs incoming HTTP requests and outgoing responses while masking sensitive data to ensure security and regulatory compliance. Key Requirements: Expected Outcome: Ideal For: [...]
Design and implement efficient asynchronous and parallel processing patterns in C#, showcasing real-world usage scenarios and performance considerations. Requirements: Deliverables: Target Audience:Intermediate to senior C# / .NET developers preparing for system design interviews or building high-performance applications. [...]
Design and implement a robust RESTful API versioning strategy in ASP.NET Core that ensures backward compatibility for enterprise clients. Key requirements: Deliverables: Target audience:Senior .NET developers, solution architects, and teams building long-lived enterprise APIs. [...]
Design and implement a centralized logging and monitoring solution for a production-grade .NET application using Serilog and Azure Application Insights to achieve full observability, diagnostics, and operational reliability. Key Requirements Production Considerations Deliverables OutcomeA production-hardened observability setup that enables faster debugging, proactive monitoring, and improved system reliability in real-world .NET [...]
Design and implement optimistic concurrency control using Entity Framework Core to ensure data integrity in a multi-user environment. Demonstrate how concurrent updates to the same database record are detected and resolved without locking resources. Key Requirements: Expected Outcome:A working EF Core implementation that safely manages concurrent data updates, prevents accidental [...]
Design a scalable multi-tenant application using .NET, and explain how tenant isolation is implemented at both the data and configuration levels. Your response should cover different tenant isolation strategies (such as shared database, separate schema, or separate database), how tenant context is resolved at runtime, and how tenant-specific settings (connection [...]
Design and implement a scalable file upload and download service using .NET, capable of handling large files efficiently. The solution should include robust file validation, secure access control, and seamless cloud storage integration (such as Azure Blob Storage or AWS S3). The service must support chunked uploads, resume capability, and [...]
Design and implement a production-grade JWT authentication system in ASP.NET Core, featuring secure access tokens, refresh token rotation, token revocation, and best-practice security hardening. The solution should include role-based authorization, token expiration handling, secure storage strategies, and real-world implementation patterns suitable for enterprise applications. [...]