Career & Skills

Guides on tech careers, developer skills, certifications, and productivity tips.

Career & Skills Mar 07, 2026 13 min read

Big-O Notation Explained Like You're 10 (Then Like You're a Senior Dev)

Big-O is the language interviewers speak. Get it wrong and you sound amateur — no matter how clever your solution. Build real intuition from O(1) to O(n!), plus a cheat sheet.

Career & Skills Mar 07, 2026 12 min read

Why Algorithm Interviews Still Matter in the Age of AI

AI can write code. Copilot can solve LeetCode Mediums. So why do Google, Meta, and Amazon still put candidates through five rounds of algorithm interviews? The answer reveals something important about what companies are actually testing — and why understanding it changes how you prepare.