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Performance
The Decisions, Near-Disasters, and 35% Cost Savings from Rebuilding a Live Bidding Engine
Why Redis and not Kafka? Why Fargate and not Kubernetes? And what happened in staging that nearly derailed the entire migration? The honest debrief, tradeoffs, the mistake that almost broke production, and the final results.
May 27, 2026 · 8 min read→
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Architecture
What Happens When a Container Dies Mid-Auction: Resilience Engineering in Practice
Building a reliable system means planning for failure, not just success. Here's how we engineered Multi-AZ failover, sub-30-second crash recovery, and observability that turned hour-long incidents into 10-minute fixes.
May 20, 2026 · 13 min read→
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Performance
Connecting a Fleet: How Redis Pub/Sub Makes Socket.IO Scale Across Containers
The core challenge of scaling Socket.IO is that each server instance is an isolated island. Here's how we used @socket.io/redis-adapter and the Socket.IO v4 upgrade to bridge those islands into one unified real-time system.
May 13, 2026 · 8 min read→
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Performance
The Day Our Auction Platform Went Dark: A Production Post-Mortem
A traffic spike brought down our entire real-time platform without warning. Here's the story of what broke, why it broke, and the architectural decisions that followed.
Apr 29, 2026 · 5 min read→