Master Low-Level Design.
Transition to Senior Engineer.
Stop confusing System Design with LLD. Learn to design thread-safe, scalable, and maintainable code—not just draw boxes.
Who is this for?
Junior → Senior Engineers
You can write code, but can you design extensible systems? Master the object-oriented principles and patterns needed for that promotion.
Backend Engineers
Go beyond frameworks. Understand the internal architecture of the tools you use daily, from connection pools to concurrent collections.
Interview Preppers
Targeted preparation for the Machine Coding / LLD round at top tech companies. Practice with 14+ real-world case studies like Parking Lot and Rate Limiter.
Beyond Blogs & PDFs
True LLD Focus
Most 'System Design' courses teach High-Level Design (Load Balancers, Kafka). We focus on Code-Level Design: Class Hierarchies, Thread Safety, and Design Patterns implementation.
Multi-Language Deep Dives
We don't just show code; we explain the internals. Learn how Python's GIL affects concurrency vs Java's Virtual Threads, and how to write idiomatic code in both.
Interactive Playground & AI
Stop watching videos. Write code in our browser-based IDE and get instant AI feedback on your SOLID principles, patterns, and scalability.
Senior Engineer Curriculum
Bridge the gap to Senior Engineer. Master advanced topics like Custom Thread Pools, Lock-Free Programming, Resilience Patterns (Circuit Breaker), and Caching strategies.
Ready to Master Low Level Design?
Join thousands of engineers leveling up their system design skills today.
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