Architect for change
Extend domain modules and workflows without rebuilding the core.
MedusaJS development agency in Europe
Medusa.js agency engineering for ambitious commerce.
We design, migrate and evolve MedusaJS commerce platforms for teams that need complex business logic, reliable integrations and full ownership of their roadmap.
Initial estimate within 48 hours.
Free consultation · about 2 min
Start with your project goal
Within 48 hours: an engineer call, initial scope and estimate. No obligation.
Step 1 of 2
120+ projects delivered
100+ production integrations
30 people at gmi.software
Architecture and ownership
An open commerce core. Your dedicated code stays yours.
MedusaJS provides the open core. We connect the storefront, admin and business systems, while your company owns the dedicated code and deployment roadmap.
- Open-source MedusaJS core
- Public gmi.software modules and docs
- Client ownership of dedicated code
Why composable commerce
Built for flexibility. Ready for what comes next.
MedusaJS gives your commerce team a clean core that can evolve without turning every business change into a platform fight.
Keep ownership
Own the code, data model and deployment roadmap.
ERP/PIM/WMS integrations
Connect operations, payments and fulfilment reliably.
Scale with control
Build observability and safe rollout into the platform from day one.
Connect your ecosystem
MedusaJS at the centre of your commerce operations.
We connect the commerce core to the systems your teams already use, with explicit ownership, retries, monitoring and recovery paths.
Operations
ERPPIMWMSOMS
Revenue
PaymentsPricingPromotionsSubscriptions
Experience
Next.jsMobileB2B portalsMarketplaces
Migrate with confidence
Move from legacy without putting revenue at risk.
We stage architecture, data and rollout decisions so the new platform can prove itself before it carries the full business.
Assess
Audit the current platform, integrations, data and conversion-critical paths.
Design
Define the target architecture, scope, migration runway and ownership.
Build
Implement the commerce core, storefront and business-specific modules.
Migrate
Move data and traffic in controlled stages with rollback points.
Evolve
Improve performance, conversion and operating efficiency after launch.
Senior engineering, end to end
A team that owns commerce engineering.
You work with senior engineers who understand both the software and the commercial process it supports.
- MedusaJS v2 and composable commerce specialists
- Architecture, delivery, migration and optimisation in one team
- Production observability, documentation and knowledge transfer
- A fixed-price path after focused scope workshops with our team
Production stack
Modern stack. Production ready.
MedusaJS
Next.js
React
TypeScript
PostgreSQL
NestJSFAQ
Questions buyers ask before choosing MedusaJS.
When is MedusaJS a better fit than Shopify or WooCommerce?
MedusaJS is worth considering when commerce depends on custom B2B workflows, multiple channels, a non-standard checkout or deep ERP, PIM and WMS integrations. If you need a straightforward D2C store and can work within a standard template, a SaaS platform may launch faster and cost less to operate.
Do we need a finished specification before the project starts?
No. We start by understanding the sales model, current platform, data, integrations and operational constraints. This lets us confirm whether MedusaJS is the right fit, define the first useful scope and resolve material risks before estimating delivery.
How do you reduce migration risk from Magento, WooCommerce or another platform?
We map the catalog, customers, orders, promotions and external dependencies first. Data migration is rehearsed before production launch, with acceptance criteria and a cutover plan agreed in advance. The timeline depends mainly on data quality, integration count and how much the sales process is changing.
Can MedusaJS connect to our ERP, PIM, WMS and payment providers?
Yes, provided those systems expose a stable API, exchange files or another agreed interface. For every integration we define data ownership, synchronization frequency, error handling, retries and monitoring. That makes failure scenarios explicit instead of treating the connection as a one-off implementation task.
Who owns the code and infrastructure after launch?
The project code and documentation are transferred to the client under the delivery agreement. Repositories, environments and third-party services can be set up in client-owned accounts from the start. We also identify hosting costs, licences and open-source components so the platform does not depend on hidden technology.
What happens after the platform goes live?
Before launch we agree monitoring, incident handling and ownership of each integration. After release, gmi.software can maintain the platform, apply MedusaJS updates and deliver the roadmap, or hand it over to your team with documentation and knowledge transfer.
Let's build what comes next.
Tell us what is limiting your commerce platform. We will come back with a practical next step.
Initial estimate within 48 hours.
Free consultation · about 2 min
Start with your project goal
Within 48 hours: an engineer call, initial scope and estimate. No obligation.
Step 1 of 2