Hi, I’m Paul.

I’m the CTO and co-founder of Filter, a UK digital agency. I build products (PersonalizeWP, Filter AI), lead technology transformation for a major UK brand, and write here about practical AI, personalisation, tech strategy, and running an agency.

Portrait of Paul Halfpenny

Latest writing

What I work on

Filter

Digital Agency · Co-Founder & CTO

Serious WordPress and product work for clients that care about how the web actually behaves.

filter.agency →

PersonalizeWP

Product · Personalisation for WP

Built from patterns we kept re-implementing on client work. Spun out as a small, self-sustaining product.

personalizewp.com →

Filter AI

Product · AI tooling

Production-shaped AI work that doesn’t fit inside a WordPress plugin. Not demos; deployments.

filter.ai →

Recent speaking

  • Jul 2024 Guest on This Week in WordPress #302 · with Nathan Wrigley, Jess Frick & Tim Nash Podcast
  • May 2024 Speaker — Personalisation essentials · WordPress London Meetup Talk
  • May 2024 Guest on WP Product Talk with Amber Hinds & Zack Katz — personalisation for revenue Liveshow
  • May 2024 Guest on Do The Woo, Woo BizChat #490 with Katie Keith — The Marketer’s Guide to WooCommerce Podcast
  • Apr 2024 Guest on This Week in WordPress #294 · with Nathan Wrigley, Piccia Neri & Tim Nash Podcast