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Most engineers spend weeks grinding LeetCode problems randomly. That's like studying for an exam by reading the textbook in random order.

Here's what actually works:

1. Pattern recognition > problem count

There are ~15 core patterns (sliding window, two pointers, BFS/DFS, etc.) that cover 90% of interview questions. Master the patterns, not individual problems.

2. Mock interviews are non-negotiable

You can solve mediums all day in your IDE. But freezing up with someone watching? That's a completely different skill. Practice under pressure.

3. System design isn't optional anymore

Even for mid-level roles, companies are asking design questions. Start with the basics: load balancers, caching, database sharding.

4. Behavioral rounds eliminate more people than you think

"Tell me about a time you disagreed with your team" isn't a throwaway question. Have 5-6 stories ready using the STAR method.

We built Code Interviewer to cover all of this — structured prep, community chat, and a course that teaches patterns instead of memorization.

Stop grinding randomly. Start preparing strategically.