Distributed Financial Systems (Microservices Architecture) 1.

Distributed Systems

Fundamentals - Real production experience

- Awareness of network unreliability
- Mention of timeouts, retries, circuit breakers
- Ability to explain trade-offs clearly 2.

Microservices Architecture

Design - Understanding of bounded contexts (DDD)

- Awareness of team ownership
- Knowledge of operational complexity 3.

Event Driven

Architecture (RabbitMQ / MassTransit) - Duplicate message handling

- Idempotency
- Retry policies
- Poison message handling 4.

Distributed

Transactions & Data Consistency - Understanding of eventual consistency

- Discussion of compensating transactions
- Awareness of idempotency keys 5. Resiliency & Fault Tolerance - Failure isolation
- Retry storm awareness
- Timeout strategies 6. Performance & Scalability - Understanding of throughput
- Discussion about caching strategies
- Awareness of data locality 7. Observability & Monitoring - OpenTelemetry
- Trace propagation
- Production debugging

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