Helena
DeMaria-Williams

I’m a software engineer and former brand marketer. I build data products, write about technology and culture, and share the process as I go. This is where all of it lives.

Building

The Skin Formulary

Ingredient-first search for skincare products. Compare what’s actually in the bottle, not what’s on the label.

Visit →

Hard Tech UK

A directory of the UK’s hard tech ecosystem — startups, investors, and open roles across robotics, quantum, aerospace, and deep tech.

Visit →

These are part of Pearl — a collection of tools for finding information that’s genuinely hard to search.

Batchly

In development

An AI content creation tool built for creators. Started as something I made for myself — now turning it into a product.

Personal

Rosary

A rosary companion app. Guides you through each mystery with a different piece of sacred art, changing daily.

Visit →

Writing

Agentic

A newsletter about indie developers, generative AI, and the creator economy.

Read on Substack →