CircuitWall

Java, Spring, JVM performance tuning, big data, real-time processing and machine learning.

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About Me

Andrew Wu · Stockholm, Sweden

I’m Andrew Wu, an Engineering Manager based in Stockholm. I lead AI/ML teams shipping production systems, and I’ve spent the last 15+ years between the JVM, big data, and cloud-native architectures.

I care about two things in roughly equal measure: building teams that ship calmly, and getting the engineering details right so they can.

What I do

  • Lead and grow cross-functional AI/ML engineering teams
  • Design MLOps and data platforms that survive contact with production
  • Advise on JVM performance, big data, and cloud architecture

Get in touch or find me on LinkedIn .

Recent Writing

Notes from the field on Java, JVM tuning, Kafka, and applied ML.

· 2 min read

Day 5 of Jarela: Tightening the Joints

Day 5 of Jarela: 27 commits focused on proxy support, EventSource streaming boundaries, MCP discovery, hot-loaded providers, and the integration plumbing that keeps things working.

LangGraphIntegrationsProxy
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· 6 min read

Day 1 of Jarela: Building My Own Lightweight Claude-Code-ish Replacement

I got tired of how complex my openclaw setup had gotten — too many tools, too many integrations I never used. So I started building a small LangGraph-based GUI for multi-agent workflows on my own laptop. This is day 1: 31 commits, a lot of streaming/reconnection pain, and three different GitHub Copilot auth flavors to untangle.

LangGraphClaude CodeMulti-Agent
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