jdfive

Course

Tech Deep Dives

The building blocks behind system design interviews

Independent deep dives into the technologies you name on the whiteboard — databases, streams, search, gateways, and coordination — pick any order. Use this alongsideHigh Level Designwhen an interview goes deep on a specific technology.

Start with PostgreSQL

Syllabus

Technologies

Technologies in depth

Independent technology deep dives — pick any order that matches your interviews.

  1. 1PostgreSQL — Relational Workhorse
  2. 2Redis — In-Memory Store
  3. 3DynamoDB — Managed Key-Value
  4. 4Cassandra — Wide-Column at Scale
  5. 5Elasticsearch — Search & Analytics
  6. 6Kafka — Distributed Event Streaming
  7. 7Flink — Stream Processing
  8. 8ZooKeeper — Distributed Coordination
  9. 9API Gateway — Edge Entry Point
  10. 10Time Series Databases — Metrics Storage
  11. 11Vector Databases — Embedding Search
  12. 12Big-Data Structures — Sketches & Filters
  13. 13Realtime Delivery — Push Mechanics