Kazi Rahamatullah
Kazi Rahamatullah
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Kazi Rahamatullah

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Featured Blog Posts

Articles, guides, and resources on web development, design, blockchain, open source, and career tips.

Filtered by tag: System Design

System Design: API Design

REST API contracts — endpoint naming, versioning, request-response structure, and error design. Interactive explorer comparing v1 vs v2 payloads.

Jul 8, 20262 min read0 views
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System Design: Caching Strategy

Where to cache, how to invalidate, and consistency trade-offs — with an interactive simulator for hit ratio, latency, and multi-layer caching.

Jul 8, 20262 min read0 views
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System Design: Data Modeling

How entities are stored, related, and indexed — with an interactive ER explorer, normalization trade-offs, and interview reasoning for scalable schemas.

Jul 8, 20263 min read0 views
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System Design: Load Balancing

Traffic distribution, session stickiness, health checks, and failover — with an interactive load balancer playground for round robin, least connections, and sticky sessions.

Jul 8, 20263 min read0 views
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System Design Fundamentals — Four Pillars

Data modeling, API design, caching, and load balancing — the four reasoning disciplines behind scalable systems, with interactive diagrams and interview-ready mental models.

Jul 8, 20264 min read0 views
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