Legend: ⬜ not started · 🔶 in progress · ✅ done (quiz passed)
| # | Module | Status | Date Completed |
|---|---|---|---|
| 00 | Mental Models, Vocabulary & Back-of-the-Envelope Math | ✅ | 2026-08-06 |
| 01 | Inside One Machine | ✅ | 2026-08-07 |
| 02 | Networking for System Designers | ✅ | 2026-08-07 |
| 03 | API Design & Communication Styles | ✅ | 2026-08-07 |
| 04 | Storage Engine Internals | ✅ | 2026-08-10 |
| 05 | Relational Databases & Data Modeling | ✅ | 2026-08-11 |
| 06 | Transactions | ✅ | 2026-08-12 |
| 07 | The NoSQL Landscape | ✅ | 2026-08-13 |
| 08 | Caching | ✅ | 2026-08-16 |
| 09 | Replication | ✅ | 2026-08-17 |
| 10 | Partitioning & Sharding | ✅ | 2026-08-19 |
| 11 | CAP, PACELC & Consistency Models | ✅ | 2026-08-20 |
| 12 | Consensus, Coordination & Time | ✅ | 2026-08-21 |
| 13 | Distributed Transactions | ✅ | 2026-08-21 |
| 14 | Load Balancing, Proxies & Service Discovery | ✅ | 2026-08-24 |
| 15 | Messaging & Streaming | ✅ | 2026-08-25 |
| 16 | Batch & Stream Processing | ✅ | 2026-08-25 |
| 17 | Rate Limiting, Quotas & Admission Control | ✅ | 2026-08-27 |
| 18 | Resiliency | ✅ | 2026-08-28 |
| 19 | Observability | ✅ | 2026-08-31 |
| 20 | Deployment & Infrastructure | ✅ | 2026-09-01 |
| 21 | Security | ⬜ | |
| 22 | Monoliths, Microservices, DDD, Mesh | ⬜ | |
| 23 | Data Architecture | ⬜ | |
| 24 | ML Systems Foundations | ⬜ | |
| 25 | Inference at Scale | ⬜ | |
| 26 | Vector Search & RAG Systems | ⬜ | |
| 27 | LLM Application Architecture | ⬜ | |
| 28 | The Interview Framework | ⬜ | |
| 29 | Case Study: URL Shortener + ID Generation | ⬜ | |
| 30 | Case Study: Chat System | ⬜ | |
| 31 | Case Study: News Feed / Timeline | ⬜ | |
| 32 | Case Study: Video Platform | ⬜ | |
| 33 | Case Study: Geospatial & Ride Hailing | ⬜ | |
| 34 | Case Study: Search, Typeahead & Crawler | ⬜ | |
| 35 | Case Study: Payments & Ledger | ⬜ | |
| 36 | Case Study: Object Store & DFS | ⬜ | |
| 37 | Case Study: Collaborative Editing | ⬜ | |
| 38 | Case Study: Ad Click Aggregation | ⬜ | |
| 39 | Case Study: Recommendation System | ⬜ | |
| 40 | Case Study: LLM Serving Platform | ⬜ | |
| 41 | Case Study: Enterprise RAG | ⬜ | |
| 42 | Bonus Case Study: Proximity Service & Geospatial Indexing | ⬜ | |
| 43 | Bonus Case Study: Design Gmail | ⬜ |