AWS Solutions Architect Role - Solutions Architect Interview Prep

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Solutions Architect Interview Prep

1.Introduction

Introduction to Solutions Architect Interview Prep

2.Lead the Interview: Requirements, Assumptions, and Diagrams

Drive Discovery with a Requirements Checklist and Assumptions Draw a Baseline Diagram with Trust Boundaries and Failure Domains

3.Defend Quality: Well-Architected and Shared Responsibility

Use Well-Architected as a Decision Conversation, Not a Checklist Allocate Shared Responsibility Across IaaS, PaaS, and SaaS Critique the Storefront Design with Risks, Fixes, and Evidence

4.Trace the Request: DNS, Ingress, and Private Access

Narrate the End-to-End Request Path: DNS to Private Data Access Translate Network Scope and Subnets Without False Equivalence Design Private Access to Managed Data with DNS as a Dependency Debug “App Can’t Reach Private Database” Boundary by Boundary

5.Choose Compute and Scale, Then Map Services Across Providers

Choose an Execution Model for the Storefront Tier Size the Stateless Tier with Unit-Labeled Assumptions Scale Out the Stateless Tier Without Ignoring State Surface Quotas as Capacity Risk in Your Design Build a Cross-Provider Service Map You Can Defend

6.Design State, Delivery, and Resilience Patterns

Pick the System of Record From Access Patterns and Transactions Scale Data Safely: Replicas, Partition Keys, and Replication Lag Separate Database, Cache, and Object Storage Roles Across Clouds Design Async Order Processing with Retries, DLQs, and Idempotency Make Sync Calls Safe: Timeouts, Retries, Breakers, and Throttling CQRS: Split Catalog Reads From Checkout Writes and Own the Costs

7.Harden the Design: Security, Recovery, and Operations

Authorize at Trust Boundaries: Identity-First Access Reasoning Credentials and Secrets: Prefer Short-Lived Workload Identity Disaster Recovery by Objectives: RTO, RPO, and DR Patterns Incident Response with Metrics, Logs, and Traces

Mock Interview

E-Commerce Store System Design

8.Run the Customer Conversation: Cost, Migration, and Objections

Directional Costing with Unit Economics and Calculator Checks Migration Waves, Cutover Criteria, and Rollback Triggers Objection Handling: Trade-Offs, Evidence, and Next-Step Proposals

9.Win the Behavioral Round and Run a Full Mock Interview

Build an Honest STAR Story Bank with Evidence Adapt Stories to Company Values Without Sounding Memorized Run a Full Mock System Design Interview With a Requirement Change

Mock Interview

Leadership Behavioral Interview

10.Conclusion

Wrapping Up Solutions Architect Interview Prep

Mock Interview

AWS Solutions Architect Role