https://chiraghasija.cc/tags/interviews/ Recent content in Interviews on Chirag Hasija https://chiraghasija.cc/og-image.png https://chiraghasija.cc/og-image.png Hugo -- 0.155.3 en-us Sat, 14 Mar 2026 20:00:00 +0530 https://chiraghasija.cc/posts/system-design-roadmap-what-to-learn/ Sat, 14 Mar 2026 20:00:00 +0530 https://chiraghasija.cc/posts/system-design-roadmap-what-to-learn/ A structured system design learning roadmap broken into 7 phases - from fundamentals to infrastructure. Stop studying topics randomly and follow this order instead. https://chiraghasija.cc/posts/database-ops-per-second-when-to-shard/ Sat, 14 Mar 2026 12:00:00 +0530 https://chiraghasija.cc/posts/database-ops-per-second-when-to-shard/ Real-world ops/sec, memory limits, and single-node ceilings for PostgreSQL, Redis, MongoDB, DynamoDB, and Cassandra - with a practical framework for when sharding actually makes sense. https://chiraghasija.cc/posts/polling-vs-long-polling-vs-websockets/ Sat, 14 Mar 2026 10:00:00 +0530 https://chiraghasija.cc/posts/polling-vs-long-polling-vs-websockets/ A practical breakdown of polling, long polling, and WebSockets - with real examples, tradeoffs, and a decision framework for system design. https://chiraghasija.cc/posts/system-design-interview-structure/ Sun, 22 Feb 2026 12:00:00 +0530 https://chiraghasija.cc/posts/system-design-interview-structure/ A complete guide to structuring a 45-minute system design interview. The exact phases, order, time allocation, and what interviewers expect at each stage. https://chiraghasija.cc/posts/back-of-envelope-calculation-system-design/ Thu, 19 Feb 2026 12:00:00 +0530 https://chiraghasija.cc/posts/back-of-envelope-calculation-system-design/ A practical guide to back-of-envelope calculations in system design. Quick estimation techniques, reference numbers, worked examples, and common mistakes to avoid. https://chiraghasija.cc/posts/non-functional-requirements-system-design/ Thu, 19 Feb 2026 11:00:00 +0530 https://chiraghasija.cc/posts/non-functional-requirements-system-design/ A senior engineer's guide to defining non-functional requirements in system design interviews. Go beyond 'scalable and available' with a framework, worked examples, and a checklist. https://chiraghasija.cc/posts/functional-requirements-system-design/ Thu, 19 Feb 2026 10:00:00 +0530 https://chiraghasija.cc/posts/functional-requirements-system-design/ A senior engineer's guide to listing functional requirements in system design interviews. Framework, examples, anti-patterns, and a ready-to-use checklist. https://chiraghasija.cc/posts/cracking-faang-from-tier-2-college/ Thu, 12 Jun 2025 16:48:00 +0530 https://chiraghasija.cc/posts/cracking-faang-from-tier-2-college/ A realistic, step-by-step guide for engineers from tier-2 colleges in India who want to get into FAANG-tier companies. https://chiraghasija.cc/posts/dsa-skills-not-the-bottleneck/ Thu, 13 Mar 2025 18:32:00 +0530 https://chiraghasija.cc/posts/dsa-skills-not-the-bottleneck/ DSA is no longer the main differentiator in tech interviews. Here is what actually separates candidates who get offers from those who do not.