Problem Solving

Add a regression test after a role-specific incident

Turns a production-only role and payload failure into the smallest durable API regression test.

Aggregate errors by minute

Aggregates log entries into per-minute error counts with deterministic output.

Apply a partitioned write rate limit

Partitions limits by authenticated user or trusted client address and returns useful 429 retry metadata.

Authorize a loaded resource by ownership

Loads a resource once, evaluates owner-or-capability authorization, and avoids trusting route ownership claims.

Avoid double-counting payments and refunds

Pre-aggregates two one-to-many relationships before joining them to prevent fanout from corrupting financial totals.

Build an accessible profile form

Implements labeled fields, client validation, error summaries, focus recovery, and pending submission state.

.NET Full Stack

Full-cycle .NET full-stack interview preparation.

A role-based preparation path covering C#, ASP.NET Core APIs, data access, frontend integration, testing, deployment, system design, real-life scenarios, and behavioral interview topics.

.NET Backend