Week 1

Hands-On High Level System Design

• URL Shortener System Design
• SAAS product Architecture
• Ecommerce Platform Design
• News Feed System Design
• File Transfer Systems

Week 2

Stripe / paypal / Google Pay / Apple Pay Low level system design

• ACID, atomicity, consistency, idempotency
• Schema design and API flow for critical financial operations
• Webhooks, retries, reconciliation and payment batching
• Security - PCI-DSS, fraud prevention, 3D secure, KYC/AML

Week 3

Cursor / Windsurf / V0 / Lovable AI Powered Coding System Design

• Context management, semantic chunking, AST based splitting
• Tool execution pipelines, sandboxing, token budget awareness
• Hybrid retrieval, temporal relevance scoring, output validation