ScaleDojo

About ScaleDojo

ScaleDojo provides an interactive environment for engineers to practice system design interviews through hands-on challenges. Users work on real-world scenarios such as designing URL shorteners, distributed message queues, or notification systems using a drag-and-drop canvas with cloud components like load balancers, databases, and caches. The platform covers multiple domains including high-level design (HLD), low-level design (LLD), API design, algorithm practice, SQL schema design, and GenAI systems. Each challenge is scored by AI with detailed feedback on architectural decisions, trade-offs, and potential improvements. A chaos engineering simulator called Murphy’s Lab allows users to test system resilience by injecting failures like server crashes or traffic spikes and observing real-time metrics such as latency, throughput, and error rates. The platform also offers learning paths for fundamentals in HLD, algorithms, LLD, API design, and AI engineering, with each chapter culminating in practical lab exercises. Users can earn verifiable certificates and track progress on a global leaderboard.

Key features

• ✓High-level system architecture challenges
• ✓Low-level database schema design with SQL practice
• ✓API endpoint engineering with REST, GraphQL, gRPC
• ✓GenAI and AI lab for LLM pipelines and RAG systems
• ✓Algorithm lab for data structures and Python fundamentals
• ✓Chaos engineering simulator for fault tolerance testing
• ✓Mock interview arena with AI interviewer
• ✓Personalized AI roadmap for structured learning

Use cases

• ✓Preparing for system design interviews at top tech companies
• ✓Practicing real-world architecture trade-offs before implementation
• ✓Testing system resilience with failure scenario simulations

Frequently asked questions about ScaleDojo