Shopify · Development · Implementation

When ideas need to become concrete solutions.

Migrations, ERP integrations, product logic, technical optimisation: I build what won't squeeze into a standard field — with a fixed price, a fixed date and documentation you can follow.

Book an intro call free of charge · about 25 minutes · via video

Three areas where things usually get stuck

Most problems sit right where data, process and frontend meet. That's exactly where I start.

01 — Migration

Replatforming without data loss

Products, customers, orders, URLs and SEO history migrated cleanly — with a test run before go-live.

02 — Integrations

An ERP that plays along

Keeping stock, prices and documents in sync between ERP and shop — including the error cases nobody wants to see.

03 — Product logic

Variants beyond the limits

Configurators, tiered pricing, B2B rules and bundles — modelled so they are still maintainable in year three.

From problem to go-live

No project starts with code. You know before the implementation what it costs and when it goes live.

  1. Step 01

    Intro call

    You describe the situation, I tell you honestly whether and how I can help. No slide deck, no follow-up mail chase.

    free
    about 25 minutes
  2. Step 02

    Audit as inventory

    Data model, apps, theme code and integrations reviewed in context — the basis for any serious quote.

    €1,290
    report within 5 working days
  3. Step 03

    Quote & planning

    Fixed price and a fixed go-live date — you know before the start what it costs and when it's done.

    included
    after the audit
  4. Step 04

    Implementation

    Migration, integration or rebuild — with interim releases, so you can always see where the project stands.

    Fixed price
    per the quote
  5. Step 05

    Test run & go-live

    Before go-live everything is tested against real data — we only switch over once everything fits.

    included
    before every go-live
  6. Step 06

    Handover & support

    A documented handover so your team understands it afterwards. Ongoing support with a fixed hours budget on request.

    €640 / month
    optional, cancel monthly

All prices net. Reverse charge within the EU; invoicing by KEVIN METZDORF LTD.

Book an intro call Not sure which step fits? That's exactly what the call is for — 25 minutes, free of charge. Afterwards we'll both know whether it's a match.

Frequently asked questions

Why does every implementation start with an audit?

Because serious fixed prices are only possible with an inventory. The audit makes visible what really needs to be rebuilt — and protects you from quotes that get more expensive mid-project.

Do you also work with agencies?

Yes, regularly. Agencies bring me in as technical reinforcement when a project hinges on the data side — migration, integrations or product logic.

What happens to my SEO rankings during a migration?

URLs, redirects and meta data are migrated too and verified in a test run before go-live. The goal is for your SEO history to survive the move unscathed.

Do you take over projects another agency started?

Yes — after an audit. Especially with inherited projects the inventory matters, so it's clear what we build on and what needs cleaning up first.

Trusted by

I draw the data model first, then I write code. In almost every project that saves more time than it costs.

25 minutes, free of charge. Afterwards you'll know whether I'm the right fit — and what the next sensible step would be.

  • 7+ years of Shopify & e-commerce
  • 50+ delivered projects
  • Fixed price & fixed go-live date
  • Documented so you can follow it