Hi, I'm William.
I fix subscription revenue leaks.
Zerglo isn't an agency with account managers and ticket queues. It's just me — a senior Shopify developer who's spent the last decade deep inside subscription commerce.
I've configured ReCharge for dozens of brands, built custom member portals, optimized checkout flows, reduced churn, and recovered hundreds of thousands in lost recurring revenue. Along the way I realised something: most subscription stores don't need a bigger agency. They need one person who actually understands how subscriptions work — and cares enough to get the details right.
That's what Zerglo is. Direct access to the person doing the work. No layers, no handoffs, no surprises.
What I do
Subscription audits, Shopify development, CRO, email marketing, and SEO — all through the lens of growing recurring revenue. Every recommendation ties back to LTV and retention.
How I work
Direct communication, no handoffs. You talk to the person doing the work. I scope, build, test, and deliver — then measure the results against the metrics that matter.
Who I work with
Shopify brands doing £10k+/mo in subscription revenue who know they're leaving money on the table but don't know where. UK and US stores, DTC and hybrid.
Honest work.
Transparent process.
I don't hide behind processes or jargon. Here's exactly what working with me looks like.
We talk
A real conversation — not a sales call. I'll ask about your store, your subscription setup, what's working and what isn't. If I'm not the right fit, I'll tell you.
I audit
I dig into your data, your flows, your checkout, your churn. The audit is free and it's thorough — you'll walk away with actionable insights whether we work together or not.
I build
No project managers, no ticket queues. I do the work myself — development, configuration, testing. You get direct updates and can reach me whenever you need to.
We measure
Every change ties back to a number. Churn rate, LTV, conversion, revenue recovered. If it didn't move the needle, I want to know why — and fix it.
Want to work together?
Start with a free audit — it's the best way to see how I think and whether we're a good fit.