ECWEBUK
No. 002 / Custom buildsCambridge · UK
✦ Services

Pragmatic Shopify
engineering —
by the person doing it.

EC Web builds the things off-the-shelf apps can’t. Scoped, priced, shipped — no “estimate ranges”, no drip-fed proposals.

Start a project →

§ Service menu

A–D
A

Shopify apps

  • —Public-listing apps, with App Store approval handled
  • —Private / custom apps for a single merchant or group
  • —Checkout UI Extensions, Admin Blocks, POS extensions
  • —Shopify Functions for discounts, shipping, payment, delivery
  • —Webhooks, Admin + Storefront APIs, GraphQL schemas
B

Integrations & data

  • —Klaviyo, GA4, Meta Ads, Gorgias, Xero, TripleWhale, ERPs
  • —Webhooks, scheduled jobs, idempotent sync pipelines
  • —Auditable ETL: everything logged, retry-safe, backfills supported
  • —Nightly reconciliation reports you can actually trust
C

AI & MCP servers

  • —Custom MCP servers so Claude / ChatGPT / Gemini can query your store
  • —Read-only by default, fine-grained scopes, full audit trail
  • —Natural-language tooling for ops, support, growth teams
  • —Anthropic SDK, OpenAI, tool-use, prompt caching — production-grade
D

Theme engineering

  • —Custom Liquid sections and OS 2.0 blocks
  • —Performance: Core Web Vitals, JS diet, server-rendering where it counts
  • —Metaobjects, metafields, structured content
  • —A/B tests that actually measure the right thing

★ How it works

Four steps, no surprises
Day 0
01
Discovery

30 min call, no slides. We define the problem, not the solution.

Day 1–3
02
Fixed-scope proposal

Written proposal with a fixed price, timeline, and a clear 'definition of done'.

Week 1–6
03
Build

Weekly demo video, shared Linear/GitHub, direct Slack. You see progress daily if you want.

Ongoing
04
Launch & support

Deployed, monitored, documented. Optional retainer to keep it humming.

◎ Receipts

Four apps on the Shopify App Store
20+
data sources

Ask AI

AI-native data access

20+ connectors, MCP server for Claude / ChatGPT / Gemini, AES-256 encryption, read-only by default.

10
triggers

Behaviour Discount

Behaviour-triggered growth

10 behaviour triggers, abandoned-checkout recovery, magic links, QR codes. ★ 5.0.

€
DE checkout

Packstation PLUS

Checkout integration

DHL Location Finder API, Postnummer validation, tamper-proof address locking, bilingual UX.

→
real-time sync

VPress Sync

Fulfilment automation

Shopify orders mapped and sent to the VPress press floor in real time. ★ 5.0.

₤ Engagement

Discovery call
No slides, no obligation.
Free · 30 min
Weekend fix
One tightly-scoped problem. In-and-out in days.
from £3,500
Typical build
3–6 weeks · fixed price · weekly demos.
£8–25k
Extended build
Multi-month. Milestones billed on delivery.
£25k+
Retainer
Ongoing app maintenance, features, support.
from £2,000 / mo
⚠ Not a fit

I’ll say no if any of these are true.

  • —You want a team of ten behind a rebrand. I’m one person.
  • —The spec is “build me the next Klaviyo.” Size matters.
  • —You’ve already got a build underway that just needs a rescue — go to a Shopify Expert partner with a rescue team.
  • —You want a vendor who says yes to everything. I’ll push back.

If in doubt — still email. I’d rather tell you “not me” than leave you guessing.

Got an idea? Let’s scope it.

Book a call →Email direct