Chaff • Engineering Lessons Learned

Chaff • Engineering Lessons Learned

Tech Blogs Digest 17.11 - 23.11

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Engineering Lessons Learned
Nov 26, 2025
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This week we AI-analysed 8949 posts for you, filtered out the chaff and hand-picked the wheat. Subscribe to stay up to date with future digests!

This week
  1. 🏗️ Architecture - brand new ML platform architecture, petabytes of traces with reasonable bills, the dark side of high availability, and more

  2. 📊 Data - hybrid search techniques

  3. 🤖 LLMs in production - healing a modern RAG system, implementing a behavioral overseer, and addressing the context rot problem

  4. 👨‍🔧 Engineering culture - open source learnings, measuring carbon footprint, and building the right culture for AI driven development

  5. 🧠 ML - AI race car design, and feature differences between training and production

  6. 🛡️ Security - a Microsoft marketplace vulnerability, and personal repo risks for organizations

  7. ☕ Java - virtual threads with Spring


🏗️ ARCHITECTURE

  • LyftLearn Evolution: Rethinking ML Platform Architecture | 15 min read

Lyft re-architected its ML infrastructure: swapping a wholly Kubernetes-based system for a hybrid model using AWS SageMaker for offline workloads while still serving real-time predictions on Kubernetes, boosting both scalability and developer speed

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