Gaurav sen system design course Download For Free 
In this course, you will gain an in-depth understanding of system design concepts. Complete guide. Architectural diagrams, capacity planning, API list, tests, Faq.
Download link → Click here
About the course
- Designing a mail system similar to gmail
- routing client to server
- we study services
- authorized requests
- caching
- decoupling
- Designing an algorithm for an audio search engine like Shazam
- mapping audio to key-values
- trimming, transforming and chunking
- combinatorial hashes
- Saving and searching hashes
- Rate-limiting algorithms
- short term fixes
- distributed rate limiting
- algorithms - sliding window, timer wheel
- separation of queues
- real optimization
- Calling system design. like whatsapp
- PSTN and VOIP
- SIP
- charging users for a call
- recommendation engine
Github REPO:- GitHub - coding-parrot/Low-Level-Design
(Note: some videos are missing. soon will upload them)