Select Difficulty
Choose your challenge level. Each difficulty offers unique constraints and learning opportunities to help you master system design at your own pace.
Easy
Perfect for beginners. Learn the fundamentals with guided tutorials and forgiving constraints.
- Extended time limits
- Helpful hints and tips
- Relaxed performance requirements
- Step-by-step guidance
- Basic component set
Time Limit
45 min
Max RPS
1K
Budget
$500
Availability
99%
Medium
Balanced challenge for intermediate learners. Real-world constraints with moderate complexity.
- Standard time constraints
- Realistic performance targets
- Full component library
- Trade-off decisions required
- Cost optimization needed
Time Limit
30 min
Max RPS
10K
Budget
$2K
Availability
99.9%
Hard
Expert-level challenges. Tight constraints and complex requirements that mirror real FAANG interviews.
- Strict time pressure
- High-scale requirements
- Complex failure scenarios
- Advanced optimization needed
- Multiple constraint conflicts
Time Limit
20 min
Max RPS
100K
Budget
$5K
Availability
99.99%