Snatchtown — Match-3 Game Backend

Gameplay logic is heavy, and reward endpoints get hit with retries on flaky mobile networks, which risks double rewards.

• Backend structured with Clean Architecture and CQRS to handle heavy gameplay logic.
• Idempotent spinner-reward processing, so repeated retries never grant a reward twice.
• Lower latency through indexing and caching.
• CPU-heavy calculations moved to Hangfire background jobs.

Idempotency under retries. A concrete reliability story worth telling in interviews.

Deployed, in internal testing ahead of Google Play launch.