---
title: "Shopware Development — Plugins & Custom Code"
description: "Shopware development with an update guarantee — plugin and app development, themes and ERP integrations. CI/CD, tests and senior engineers throughout."
canonical_url: "https://nuonic.de/en/shopware-agency/development"
last_updated: "2026-08-14T18:31:48.926Z"
---

<about-hero background="navy" subtitle="Plugins, apps, themes, integrations, custom features — built by engineers who know Shopware down to the core.">

Shopware development that <span>



</span>



<span className="mono-hl">

survives updates.

</span>



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Every line <span className="text-amber-500">

senior-built

</span>

 — with CI/CD, tests and review.

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</about-hero>

<about-mission label="Standard">
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Custom code is not a risk.

</template>

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Bad custom code is why shops can no longer be updated. Good custom code is why they grow.

</template>

<template v-slot:body="">

The difference isn't whether, it's how: we develop against Shopware's public
APIs, encapsulate extensions cleanly and secure every change with automated
tests and CI/CD pipelines. The result: features that map your processes
exactly — and a system that doesn't become a hostage at the next Shopware
update.

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</about-mission>

<about-principle :points="[{"title":"Plugin & app development","description":"Tailored extensions against the public API — update-safe, documented, tested."},{"title":"Theme & storefront","description":"Fast, converting storefronts — Core Web Vitals as an acceptance criterion, not an afterthought."},{"title":"Integrations & ERP","description":"Connections to ERP, PIM, CRM and payment — robust data flows with monitoring instead of fragile one-way scripts."},{"title":"Digital extension modules","description":"Reusable modules for processes standard plugins don't cover — built cleanly once instead of patched three times."}]" background="navy" label="Services" statLabel="deploy speed through CI/CD pipelines across our projects." statValue="2×">
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Engineering with a <span className="mono-hl">

systems mindset.

</span>
</template>

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Anyone can promise features. We deliver features with an operating guarantee: tested, versioned, monitored — and still there after the next major update.

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</about-principle>

<section-figure alt="Architecture diagram — Shopware 6 as the API-first core, connected to ERP, PIM, CRM, payment, tracking and other services, plus storefront, Store API and Admin API" background="default" caption="Shopware 6 as the API-first core — storefront and APIs up front, external systems cleanly connected." label="Architecture" src="/images/nuonic-architecture-en.svg">
<template v-slot:heading="">

This is what a <span className="mono-hl">

system

</span>

 looks like.

</template>

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Shopware 6 at the centre, API-first: storefront, Store API and Admin API up front for every channel — with ERP, PIM, CRM, payment and analytics connected behind it through robust, monitored integrations. This is exactly the architecture we build and operate.

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</section-figure>

<contact-steps :steps="[{"title":"Requirement, not ticket","description":"We understand the process behind the feature request — often the better solution is smaller than the one ordered."},{"title":"Architecture review","description":"Every extension is designed against Shopware's update roadmap. What contradicts the core, we don't build."},{"title":"CI/CD & tests","description":"Automated pipelines, code review and test coverage — twice the deploy speed at a falling error rate."},{"title":"Handover & operations","description":"Documentation, monitoring, SLA — code a third party could maintain. You just won't have to."}]" background="gray" label="Quality standard">

How durable code is made.

</contact-steps>

<home-references :limit="3" ctaLabel="View all case studies" ctaTo="/en/case-studies" label="References">
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Built and proven.

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</home-references>

<about-convictions :convictions="[{"tag":"API-first","title":"Against the public API","description":"No core hacks, no blind overrides. Every extension uses the documented Shopware APIs and events — that's the difference between update-safe and update-blocking."},{"tag":"Tests","title":"Test coverage over test courage","description":"Automated tests run with every deploy and every Shopware update. Errors surface in the pipeline, not in your customers' checkout."},{"tag":"Headless-ready","title":"Storefront without dogma","description":"Shopware storefront where it's enough — headless with a custom frontend where performance or multi-channel demand it. The architecture decision follows the requirement, not the trend."},{"tag":"Ownership","title":"Who builds it, owns it","description":"The engineer who builds your extension also operates it — and talks to you directly. No ticket systems between problem and person."}]" label="Engineering principles">
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How we build — without exception.

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</about-convictions>

<home-audience :butForItems="["Merchants whose processes no standard plugin can map.","B2B requirements — pricing logic, approvals, customer portals.","Shops with an ERP, PIM or CRM landscape that needs clean integration."]" :notForItems="["Small theme tweaks that don't justify our setup.","Code without tests, docs and review.","Feature requests without a look at the process behind them."]" background="navy" butForLabel="Where we're the right fit" label="Who it's for" notForLabel="Where we're not the right fit">
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Custom development is an investment decision.

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</home-audience>

<faq-section :items="[{"question":"Custom development or an off-the-shelf plugin?","answer":"If a well-maintained store plugin covers 90% of the requirement, we recommend the plugin — custom development pays off where processes are your competitive edge. We make that trade-off transparent in the analysis, including follow-up costs of both paths."},{"question":"What does Shopware plugin development cost?","answer":"Small extensions start at a few thousand euros; complex modules with integrations reach five figures. What drives cost is the processes behind them, not the line count — after the analysis you get a reliable number."},{"question":"Does custom code stay update-safe?","answer":"Yes — if it's developed against the public APIs and cleanly encapsulated. That's exactly how we build, secured by automated tests that run with every Shopware update."},{"question":"Agency or freelance Shopware developer?","answer":"For an isolated module a freelancer can be enough. For business-critical systems you need review, cover and operational responsibility — that's what a practiced senior team with an SLA provides. With us, the engineer is also your contact person."},{"question":"Do you take over code built by other agencies?","answer":"Yes, regularly. The entry point is a code audit assessing condition, risks and update capability. Then you decide on facts: what stays, what gets refactored, what needs rebuilding."},{"question":"What's the difference between a Shopware plugin and an app?","answer":"Plugins run inside the Shopware process itself — maximum depth, intended for self-hosted shops. Apps run decoupled via APIs and are the route for Shopware cloud environments. We build both and choose by hosting model and requirement, not by habit."},{"question":"Does nuonic build headless frontends for Shopware?","answer":"Yes. Via the Store API we decouple the frontend when performance, content commerce or multi-channel justify it — with modern frameworks like Nuxt. And we'll tell you just as clearly when the Shopware storefront is the more economical route."},{"question":"Do you work with the Shopware B2B components?","answer":"Yes — approval workflows, budgets, customer-specific pricing and order workflows are built on the B2B components where they carry, and extended individually where your processes demand more. We draw the line between standard and custom in the audit, not in a change order."}]" background="default" label="FAQ">

Development questions.

</faq-section>

<service-contact background="navy" ctaLabel="Request a development project →" ctaTo="/en/contact" image="/images/team/founders.jpg" imageAlt="Benedikt Rillox and Alex Jank, the founders of nuonic Digital" label="Contact" phone="+49 8141 828197-0">
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Your process. Your <span className="mono-hl,font-extrabold">

code.

</span>
</template>

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Tell us what your shop needs to do — we'll tell you how to build it update-safe and what it costs.

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</service-contact>