Courses

Structured tracks to take you from fundamentals to interview-ready.

5 TRACKS · 1 OPEN · 4 COMING SOON

System Design
Learn to design scalable, fault-tolerant systems — from URL shorteners to distributed caches — with real interview case studies.
- 24 Case Studies
- 40+ Hours
- 8 wks
Intermediate → Advanced
Not startedStart
Low Level Design
Model real-world features with SOLID principles, design patterns, and machine-coding rounds you can finish in 90 minutes.
- 20 Patterns
- 15 Machine Coding
- 10 wks
Intermediate → Advanced
Coming soon
Operating Systems
Processes, threads, scheduling, memory management, and concurrency — the fundamentals interviewers keep circling back to.
- 10 Modules
- Memory & Concurrency
- 6 wks
Beginner → Intermediate
Coming soon
Computer Networks
Follow a request from DNS to TCP to TLS to HTTP, and learn why latency, retries, and caching behave the way they do.
- TCP/IP & HTTP
- TLS & Security
- 6 wks
Beginner → Intermediate
Coming soon
Database Management Systems
You use a database every day. This course explains what it is doing underneath — how rows are stored and found, how a query becomes a plan, what an isolation level actually guarantees, and what happens when the machine dies mid-commit.
- Storage & Indexing
- Transactions & Recovery
- Replication & Sharding
Intermediate → Advanced
Coming soon

Mock Interviews

Practice with our AI interviewer before the real thing.

AI INTERVIEWER
DSA Mock Interview
Solve a live coding problem while our AI interviewer asks follow-ups and evaluates your approach — just like a real screen.
45 min
AI INTERVIEWER
System Design Mock
Whiteboard a system design problem with our AI interviewer and get structured feedback on your solution.
60 min
AI INTERVIEWER
Behavioral Mock
Practice the STAR method on real behavioral questions with an AI interviewer trained on top product-company loops.
30 min