Blog & Insights
Discover the latest insights, tips, and trends in technology, career development, and interview preparation from industry experts.
Featured Posts
Building a Function-as-a-Service Platform: From MicroVMs to Millisecond Metering
A deep dive into building serverless platforms like AWS Lambda: how microVMs provide isolation, snapshots eliminate cold starts, placement algorithms optimize density, and metering systems bill milliseconds accurately, all while running untrusted code from thousands of hostile tenants.
Building a Real-Time Chat and Voice Platform: A Deep Dive into Discord-Scale System Design
A comprehensive guide to designing a Discord-scale real-time communication platform handling 10M concurrent users, 60K messages/sec, and 2.5M voice users. Covers WebSocket gateways, ScyllaDB message storage, SFU voice architecture, and presence management with zero-allocation optimizations.
Designing a Ride-Hailing Platform: How I Would Build the Next Uber
A comprehensive technical deep-dive into building a production-grade ride-hailing platform like Uber. Covers geospatial indexing with Redis Geo, real-time matching algorithms, trip state management, surge pricing with H3 zones, and scaling to 30M daily users with 500K location writes/second.
All Posts
Building a Function-as-a-Service Platform: From MicroVMs to Millisecond Metering
A deep dive into building serverless platforms like AWS Lambda: how microVMs provide isolation, snapshots eliminate cold starts, placement algorithms optimize density, and metering systems bill milliseconds accurately, all while running untrusted code from thousands of hostile tenants.
Building a Real-Time Chat and Voice Platform: A Deep Dive into Discord-Scale System Design
A comprehensive guide to designing a Discord-scale real-time communication platform handling 10M concurrent users, 60K messages/sec, and 2.5M voice users. Covers WebSocket gateways, ScyllaDB message storage, SFU voice architecture, and presence management with zero-allocation optimizations.
Designing a Ride-Hailing Platform: How I Would Build the Next Uber
A comprehensive technical deep-dive into building a production-grade ride-hailing platform like Uber. Covers geospatial indexing with Redis Geo, real-time matching algorithms, trip state management, surge pricing with H3 zones, and scaling to 30M daily users with 500K location writes/second.
Designing Twitter/X: A Complete System Design Walkthrough
A comprehensive guide to designing Twitter/X from scratch, covering timeline generation with hybrid fan-out, social graph sharding, tweet storage at 400M tweets/day, real-time search with Elasticsearch, and trending topics detection—handling 150M users and 300K QPS.
Designing a Large-Scale Video Streaming Platform
A comprehensive guide to building YouTube-scale video platforms. Covers transcoding pipelines, adaptive bitrate streaming, multi-language support, and CDN architecture for 200M DAU handling 7 Tbps egress and 5 PB daily uploads with 95%+ cache hit ratios.
LLM Memory Compaction: Keeping an Agent's Context Window Healthy
Memory compaction reduces an agent's context size while preserving critical information. Learn practical strategies like trimming, summarization, tool compaction, and event-based methods to keep agents fast, focused, and cost-effective across long sessions.