Crackr resources
Seven practical articles, zero fluff: solved-live LeetCode hard walkthroughs, Google L4 prep, RAG architecture, FAANG system design, and what our live sessions actually look like.
LeetCode hard solved live
A step-by-step ex-FAANG walkthrough for the Median of Two Sorted Arrays interview problem, including intuition, gotchas, optimal binary search, and complexity.
11 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleLeetCode fundamentals
A practical guide to solving Two Sum by spotting complements, trading brute force for one-pass lookups, and explaining the pattern clearly in interviews.
4 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleAI systems
Five practical indicators that your retrieval stack is ready for a high-signal review focused on failure modes, observability, and debugging leverage.
4 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleBehind the scenes
A transparent walkthrough of Crackr's live coding session format, including how the problem is framed, where the coaching focus goes, and what you leave with.
3 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleGoogle interview prep
A focused Google interview prep guide for L4 candidates covering coding rounds, communication, pattern practice, and when to get live FAANG coaching.
5 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleRAG architecture
A practical comparison of LangChain and LlamaIndex for RAG architecture, retrieval workflows, agents, data connectors, and LLM engineering trade-offs.
5 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read articleSystem design interviews
System design interview tips for avoiding vague requirements, premature architecture, weak trade-offs, and other FAANG senior engineer interview mistakes.
5 min read
Built for long-tail search intent and for readers who want a concrete next step, not broad advice.
Read article