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Guides
In-depth, in-site guides that move from fundamentals to real system design decisions.
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Backend Engineer
Practical backend subject guides aligned to the 2–3 years backend engineer roadmap.
11 phases44 guides
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Applied AI Engineering
Deep dives that follow the Applied AI Engineer roadmap — LLM foundations, RAG, agents, and production LLMOps.
9 phases28 guides
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Low-Level Design
Master object-oriented design, design patterns, and LLD interview problems.
7 phases47 guides
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Spring AI
Deep dives that follow the Spring AI roadmap — chat, RAG, agentic orchestration, and the wider JVM AI ecosystem.
9 phases34 guides
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System Design
Master the art of designing scalable, resilient, and high-performance systems.
9 phases62 guides