Home | Raul Guiu

Hello, I am

Raul Guiu

Staff Software Engineer — AI & Developer Tools

I am a Staff Software Engineer with 25+ years of experience building systems at scale. I specialize in AI developer tooling, distributed coordination, and agentic AI infrastructure.

My career spans Amazon, VISA, Betfair, and fintech startups — always focused on the intersection of infrastructure, reliability, and developer experience.

Now

I build open-source AI developer tools and consult on AI adoption. I am currently at Ebury, driving AI integration across the engineering organization.

Recent posts

All posts

Jul 25, 2026
Inside AI Agent Profiler: The Trace Engine That Sees Every Byte
How AI Agent Profiler captures wire-speed NDJSON traces, parses four incompatible streaming formats into SQLite, and reveals that 80% of LLM traffic is the agent talking to itself.
- ai
- ai-agent-profiler
- architecture
- sqlite
- proxy
- llm
- trace-engine
Jul 24, 2026
How Claude Code talks to the API
The hidden API traffic driving your coding agent: the 9 request kinds, Claude's explicit cache system, the 5-minute TTL, and why most token-saving tricks fail.
- ai
- ai-agent-profiler
- claude
- cache
- proxy
- typescript
- anthropic
Jul 22, 2026
Building a transparent LLM proxy: architecture of ai-agent-profiler
How the proxy intercepts, classifies, traces, and optimizes every API call between your coding agent and the LLM provider. With a diagram of the request pipeline.
- ai
- ai-agent-profiler
- proxy
- architecture
- typescript

Website build with

Python PostgreSQL AWS FastAPI

Building with modern Python, distributed on cloud infrastructure.

Recent projects

All projects

Jul 18, 2026
stackpilot
A lean coding agent rebuilt from recorded Claude Code traces. Client-side cache prediction, 14 tools, auto-compaction, Bedrock support.
- typescript
- cli
- claude-code
- anthropic
- bedrock
Jul 12, 2026
ai-agent-profiler
Local-first profiler + optimizer for AI coding agents. Transparent proxy, trace capture, MCP server, FTS5 search, cost optimization (-66% demonstrated).
- typescript
- proxy
- observability
- cost
- claude-code
- opencode
May 30, 2026
armada-ai
Persistent sessions and live supervision for coding agents. tmux-based persistence, FastAPI web dashboard, MCP-native agent skills, multi-agent orchestration.
- python
- fastapi
- tmux
- multi-agent
- orchestration
- mcp

Let's Connect

Reach out to me via email or on social media.

raul@rguiu.com

Github

rguiu

PyPI

pglease, armada-ai