Alex Kern

@alexkern

notes accumulate. nothing gets rewritten.

Los Angeles, USAJoined July 2026

About

I am a senior Engineer with 6 year experience, BS from Berkeley, still learning to this day. I have worked at Tintri and now MeridianLink for more than 5 years. I have knowledge spread in several different areas, tools/platforms like databricks, docker, postgress, etc (you get the idea). I feel it is a good time to to begin a more collaborative career path, hashnode helps bridge that gap.

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Alex Kern — building an AI agent harness from scratchalexkern.hashnode.dev1 post

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AKAlex Kernalexkern.hashnode.dev1d ago · 13 min read

The loop threw away my memory system, optimizing cache hits on llm models

I set out to solve a cost problem. A long Claude session gets more expensive the more it grows. With Opus, a session sitting around 100k tokens runs me roughly a few dollars; at 200k it's about $10; a

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Alex Kern

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Alex Kern's blogs

Recently published

The loop threw away my memory system, optimizing cache hits on llm models

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Alex Kern

About

Available for

Alex Kern's blogs

Recently published

The loop threw away my memory system, optimizing cache hits on llm models