Lenny Kiruthu

I’m a data / analytics engineer based in Nairobi. I build data systems end-to-end — ingestion, transformation, orchestration, and the UIs that sit on top.

This site is where I document what I’m building, why I made certain decisions, and what I’m learning along the way. It’s part personal portfolio, part build-in-public log, part eventual pitch to collaborators and potential partners.

What’s here

• Multi Asset Portfolio Analytics Platfom — A deep dive into my flagship project: a self-hosted portfolio analytics platform built on real infrastructure. (AWS, dbt, dagster, docker, postgres and streamlit)
• Build Log — Release notes, decisions, dead ends, and progress updates posted as I ship.
• Docs — User documentation for anyone who ends up using the platform.

The longer ambition

Right now I’m focused on global equities and macro data. But the real goal is African market data — equities, fixed income, currencies, commodities across the continent. The infrastructure and the methodology I’m building today is designed to scale there.

If you’re working on something similar, or you’re interested in what I’m building, I’d genuinely love to hear from you.