E-Commerce · Shopware · B2B / B2C / D2C

E-Commerce thatdrives revenue

E-commerce solutions with maximum performance are our thing. We build online shops for B2C, B2B and D2C with proven technologies and a fine sense for usability. Consulting, strategy, UX/UI design, development and integrations: all from a single source.

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E-commerce experience in numbers

50+: In-house plugins
<1s: Avg. server response time (Tideways)
12+: Years of experience
€500M+: Annual shop revenue managed

E-Commerce from a single source

Six disciplines, one team. From platform to scale, we build your digital future together.

Platform development and management

Migration & Replatforming

Integrations & interfaces

B2B-E-Commerce

Conversion Optimization

Performance optimization and scaling

What really matters in e-commerce

A successful online shop is never the result of good design alone. What counts is the interplay of performant shop technology, frictionless checkout flows and a platform that scales with your growth. That is exactly where we come in as an e-commerce agency: from Shopware and headless commerce to deep ERP and PIM integration.

We think about your shop from the customer and the revenue first: fast load times, a well-designed customer journey and cleanly measured conversion points. That turns visitors into returning customers and your shop into a reliable sales channel.

Performance & load time
Every second of load time costs conversion. We optimise Core Web Vitals, caching and server response times measurably.
Scalable platform
An open-source base like Shopware, with no vendor lock-in and full control over code, data and roadmap.
Connected systems
ERP, PIM, payment and shipping cleanly linked, so orders run automatically instead of manually.
Conversion & data
We measure what matters and optimise along real numbers instead of gut feeling.

Why Shopware?

Open platform. Full control. Grows with you.

API-first: Open, no vendor lock-in
B2B · B2C · D2C: One system for every model
Extensible: Plugins + custom development
Shopware partner: Hundreds of project hours

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Looking for Shopware expertise on site in the Rhineland? Our Shopware agency Düsseldorf supports projects in Düsseldorf, Cologne and across NRW – in person or remote.

Partnership, not a black box

We build e-commerce from the customer back: clear discovery, iterative development and transparent communication. You're involved at every stage.

Discovery & strategy

Goals, audiences, scope and integrations are defined up front. That's the basis for a solid quote.

Concept & UX

Information architecture, user flows and checkout are planned before a single line of code.

Iterative development

We build in sprints and show working results early. You give feedback throughout, not just at the end.

Launch & quality

Testing, performance and security are part of it. Go-live is planned, not improvised.

Operations & evolution

After launch we stay on board: support, steady release cycles and continuous optimization.

Image about: Partnership, not a black box

6.000Orders / day

Multi-CountryEnterprise store

Real E-Commerce Successes

Bike Discount

EUROPAS BIG PLAYER IM ZWEIRAD SEGMENT

6.000Orders / day

E-Commerce
Shopware
Migration

Mellerud

SHOPWARE 6 ENTERPRISE

Multi-CountryEnterprise store

E-Commerce
Shopware
Migration

XBoard Shop

DAS SURFBRETT FÜR DIE STRAßE

D2CBrand store

E-Commerce
Shopware
Node.js

Etikettenmeister

PERFEKTE ETIKETTEN. PUNKT.

Live-Konfigurator+ ERP

E-Commerce
Shopware

Apple of Eden

MODERN FOOTWEAR – STYLE MEETS COMMERCE

FashionD2C store

E-Commerce
Shopware
Migration

Thea Mika

BEAUTY COMMERCE

BeautyCommerce

E-Commerce
Shopware
Migration

Goal

Become our next success story

Start your project

Edge with nextlevels

With us you're always at the cutting edge of technology and benefit directly from our developer expertise. Together we analyze your shop, identify key areas and develop tailor-made solutions. Your goals and expectations are at the center of our work.

Developers, not resellers
Your shop is built by developers who really understand the code. We pass nothing to subcontractors.
Shopware down to the detail
Architecture, API integration and performance from hundreds of project hours.
One team, every discipline
Development, design and marketing come from one team that works without friction at the handoffs.
Built for growth
We build measurably for conversion, load time and revenue.
Partner, not vendor
We stay on after launch and keep developing your shop continuously.

Ready for your successful online shop?

Whether it's an improvement or a fresh start: a no-obligation conversation never hurt anyone.

Paul Kalisch
Executive Partner

info@next-levels.de +49 (0) 2161 539 71 60

E-Commerce Data & Insights

All posts

Angular vs React vs Vue: Which frontend framework suits your shop?

06/15/2026

Angular, React or Vue for your shop? A practical comparison for e-commerce and headless shopware with a clear recommendation based on team, SEO and setup.

Shopware Community Day 2026: Die agentische Ära beginnt mit Infrastruktur, nicht mit Chatbots

06/10/2026

Vier Launches in Köln, aber die eigentliche Nachricht liegt tiefer: Der Shopware-Core ist jetzt vollständig MCP-abgedeckt und UCP-ready. Was das für deinen Shop bedeutet und welche drei Hausaufgaben jetzt anstehen.

Shop-Migration ohne SEO-Verlust: So überlebt dein Ranking den Plattformwechsel

06/10/2026

Der SEO-Verlust bei einer Migration passiert nicht am Launch-Tag, sondern Wochen vorher im Redirect-Mapping. Die handwerklichen Fehler, die Rankings wirklich kosten, und wie du sie vermeidest.

Composable Commerce mit Shopware: Wann sich ein entkoppeltes Frontend wirklich lohnt

06/09/2026

Headless klingt modern, ist aber eine Rechnung, die du jeden Monat zahlst. Wann sich ein entkoppeltes Shopware-Frontend über die Store API lohnt — und wann die klassische Storefront die klügere Wahl bleibt.

All online shop services at a glance

Every specialization with its concrete deliverables — straight to the right page.

E-commerce – frequently asked questions

What does building an online shop with nextlevels cost?

It depends heavily on scope. A manageable shop based on Shopware typically starts in the low five-figure range, while complex B2B or headless projects with ERP and PIM interfaces sit above that. On top come running costs for hosting, licenses and maintenance as a separate line item. You get a concrete fixed-price offer after a short discovery in which we clarify requirements, interfaces and data volumes.

How long until my shop goes live?

It depends on the project type. A clearly scoped standard B2C shop usually goes live in 8 to 12 weeks; a migration or a B2B/headless project with ERP and PIM integration takes more like 4 to 6 months. The range depends on the number of interfaces, the complexity of your assortment and the data migration. We work in iterations: you see a working state early and give feedback, rather than only seeing the finished result at the end. You get the binding phase plan with a go-live date after discovery, not only after the project starts.

Which shop system do you recommend – Shopware, headless or something else?

Our focus is Shopware, because as an open-source system it is powerful, extensible and well established in the German mid-market. We recommend headless architectures (Shopware as backend, your own frontend) when you need maximum frontend freedom or special performance. We make the decision based on your requirements, not on principle – a simple shop doesn't need a headless setup.

More in our wiki: Headless Commerce

Can you migrate my existing shop?

Yes. We migrate existing shops in four clearly separated phases: technical audit, data migration (product data, customers, order history), parallel development of the new platform and cutover with active monitoring. We carry over your URL structure via a complete 301 redirect concept that we check against a live crawl of your old shop, so your SEO substance is preserved. We plan the cutover without a big bang and without a drop in revenue; after go-live we actively monitor rankings and error rates for several weeks and adjust as needed.

Do you support B2B, B2C and D2C equally?

Yes. In B2C, conversion, speed and a frictionless checkout matter most. In B2B, requirements such as customer-specific price lists, tiered pricing, order approvals, quotation features and ERP integration come into play. We support D2C brands from brand staging to the logistics interface. We build the shop around your business model, not the other way round.

How do you ensure performance and scalability?

Performance isn't an afterthought for us but part of the architecture. We optimize for good Core Web Vitals, use caching, a CDN and clean database indexes, and test behavior under load. That keeps your shop fast and stable even during load peaks such as sales campaigns or Black Friday.

What about data protection, security and payment processing?

We build shops GDPR-compliant and integrate payments via certified payment providers, so no sensitive card data sits on your server. Updates, secure configuration and a roles-and-permissions concept are standard for us. In e-commerce, security isn't an optional add-on but a prerequisite for trust and conversion.

Who owns the shop – does vendor lock-in arise?

You own everything: code, configuration, data and content. Because we build on open-source technology like Shopware, you're not tied to proprietary systems and could in principle hand operations to another team. We document cleanly – vendor lock-in is not our business model.