AWS Application Integration
Messaging, eventing and workflow orchestration - the services a Python backend actually wires together.
| Service | Also | Lines |
|---|---|---|
| SNS | — | 1066 |
| SQS | visibility timeout and consumers | 91 |
| EventBridge | — | 223 |
| Step Functions | — | 205 |
Services outside this list were deliberately not covered - see Modernization plan — 2026-2027 interview prep phase 2. Depth here tracks what a Python/AI backend role is actually asked about, not the full AWS catalog.