Interviews22 Jun 20262 min read
A Weekly Interview Prep Loop That Actually Compounds
A sustainable seven-day rhythm for coding rounds and system design practice that leaves room for review instead of permanent panic.
planninginterviewsrevision
Archive
All writing
A single place for every published note, from problem-solving patterns to system design tradeoffs and interview process playbooks.
System Design21 Jun 20263 min read
Rate Limiter Design: Picking the Right Tradeoff
A grounded walkthrough of token bucket, leaky bucket, and sliding-window counters, with guidance on when each approach wins.
rate-limitingbackendscalability
DSA18 Jun 20263 min read
A Sliding Window Checklist You Can Reuse
How to identify fixed and variable windows, maintain the right state, and avoid the off-by-one bugs that make this pattern feel slippery.
sliding-windowstringsarrays
System Design16 Jun 20263 min read
Design a URL Shortener Without Losing the Thread
A concise way to structure the classic URL shortener interview so you can talk through scale, storage, and redirect latency with confidence.
url-shortenerdatabasessystem-design
DSA10 Jun 20264 min read
Mastering the Two Pointers Pattern
A clean decision tree for spotting two-pointer problems quickly and avoiding the most common interview slips.
arrayspointersinterviews