Rajeev Gill

I build practical software around AI, data, analytics, and adtech.

My work sits between product thinking and implementation, with a bias toward systems that make real work less messy.

Based in London. Interested in useful AI, clearer measurement, and software that holds up outside a demo.

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Selected projects

Things I have built

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Local LLM Lab field guide showing the current installed-model inventory and measured comparison totals.
AI research product

Local LLM Lab

A measured guide to every local AI model installed on my Apple Silicon workstation.

PythonReactVite
Open GTM Index desktop interface showing category leaders, ranked tools, and the public scoring method.
Research product

Open GTM Index

A transparent guide to open-source sales and marketing software.

TanStack StartReact 19TypeScript
Hackathon Voting App showing the live public scoreboard and consent-aware footer controls.
Operations product

Hackathon Voting App

A production-ready single-screen judging app built for a live hackathon room.

Next.js 14TypeScriptClerk

Recent writing

Notes from the work

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Agentic data collection and warehousing

Server-side GTM, first-party collection, warehouse destinations, and consent — with an honest account of cost, complexity, and when the heavy stack is the wrong answer.

Agentic web analytics implementation

How web analytics implementation — consent, GA4, GTM setup, QA, reporting, reconciliation — can be substantially automated while humans keep governance. Marketer-first, proof-backed.

Have something useful to build?

I am always interested in thoughtful software, analytics, and AI work where the practical details matter.

Email me