E-commerce Website Development and Marketplaces

What you get

Online store

Stores designed around your brand that load fast on phones, with product, variant, campaign and coupon management.

Payment infrastructure

Stripe, PayPal, Adyen and Klarna integrations; buy now, pay later, 3D Secure and one-step checkout with a saved card.

Shipping integration

Automatic shipment registration with carriers, tracking numbers and a notification to the customer at every step.

Marketplace integration

Product, stock and order sync with Amazon, eBay, Etsy and Zalando, from a single dashboard.

Inventory and order management

Stock for every sales channel in one place; orders, returns and exchanges on a single screen.

E-invoicing and accounting

An e-invoice (Peppol-ready where required) issued the moment an order is placed, synced automatically with your accounting software, such as Xero, QuickBooks, SAP or Bexio.

From cart to doorstep, the shortest orbit.

Cart

Product pages that load fast and a cart that fits on a single page; customers reach checkout before they change their mind.

Payment

Saved cards, Apple Pay, Google Pay and 3D Secure on one screen; payment is approved within seconds.

Shipping and delivery

Shipment booked, e-invoice issued and tracking number sent the moment the order comes in; customers follow every step through notifications.

Why Mercury?

Mercury is the planet closest to the Sun and the one that completes its orbit fastest; a year on Mercury lasts only 88 days. The Romans named it after the god of merchants, travelers and messengers. That is exactly the job of an online store: getting the product to the customer by the shortest route, as fast as possible.

What stores do we build?

Retail and brand stores
B2B dealer and wholesale ordering systems
Subscription and digital product sales
Multichannel sales platforms synced with marketplaces
Booking and ticketing systems

How does it work?

First we map out your product structure, your sales channels and everything that happens after the order: where stock is kept, how invoices are issued, who handles shipping. We settle the store’s design around the product page and the checkout step, then set up the payment, shipping, e-invoicing and marketplace integrations. Before launch we test end to end with real payment and refund scenarios.

Technology

For ready-made platforms we use Shopify and WooCommerce; for custom stores, Next.js, Angular or Vue on the front end, Node.js, Go, .NET or PHP (Laravel) on the back end, and MongoDB or Supabase for the database; the store’s mobile app is built with Flutter. Payments run through Stripe, PayPal, Adyen and Klarna, invoicing through e-invoicing providers and your accounting software, and shipping through carriers such as DHL, UPS, FedEx or Swiss Post.

Frequently asked questions

A ready-made platform or a store built just for you?

For standard catalogs, we set up ready-made platforms such as Shopify or WooCommerce and customize them for your brand. If you need dealer pricing, a B2B ordering flow or heavy integration, the store is developed specifically for you. We decide together which one fits at the first meeting.

Which payment methods do you support?

Credit and debit cards with 3D Secure, bank transfer (including SEPA), invoice payment and buy now, pay later with Klarna, Apple Pay and Google Pay. We work with Stripe, PayPal, Adyen and Klarna.

Will my stock stay in sync across marketplaces?

Yes. When a product sells on one channel, its stock drops automatically on every other channel; orders are gathered in a single dashboard.

Can you move my existing store to the new system?

Yes. Product, customer and order data are migrated, and redirects from the old page addresses to the new ones preserve your search engine rankings.

How long does it take to launch a store?

Usually 3–5 weeks on a ready-made platform; custom-built stores with heavy integration launch in 2–4 months.

The closest orbit to the Sun, and the fastest.