About this site

Jack Creates is the engineering notebook of Jack Horsburgh, a Software Engineer from Northern Ireland, now based in London working at J.P. Morgan Chase.

The Mission

Software engineering is changing. It is no longer just about writing code. It is about leverage.

LLMs are leverage on leverage. But only if you have the right processes, prompts, and abstractions to control them. This site documents that shift.

What You Will Find Here

Deep Dives. Technical breakdowns of system prompts, AI engineering, and data optimisation.

Building in Public. The real journey of shipping tools for software engineers. Wins, failures, and code.

No Hype. Practical insights from a career spanning early stage startups to global finance.

About Jack

I studied Computer Science and AI at Edinburgh, where we placed top 6 in the SpaceX Hyperloop competition. I have worked in startups and massive corporate environments. I learned by doing both, and I came out sharper.

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