Step 01
Audit & DDT
Domain and integration map with risks. Greenfield vs migration, MVP scope.
MedusaJS development
MedusaJS development agency
Hire Medusa developers from Poland for EU and US teams
GMI Software is a MedusaJS development agency from Gdansk, Poland: greenfield builds, Magento/WooCommerce migrations, B2B modules and dedicated Medusa teams for EU and US companies. 120+ projects, Clutch 4.9★, initial estimate within 48 hours.
We design and ship MedusaJS v2: migrations from Magento and WooCommerce, B2B modules, marketplaces, ERP integrations and Next.js storefronts. One partner from DDT workshop to production care.
120+
Projects delivered
100+
Integrations
30
People on the team
Last updated: July 2, 2026
How much does a MedusaJS agency project or team cost?
| Scope | Range | Notes |
|---|---|---|
| Audit + migration roadmap | EUR 3,500 - 8,000 | 2-4 weeks |
| Medusa v2 MVP + Next.js | EUR 25,000 - 45,000 | fixed after DDT |
| Dedicated Medusa developer (month) | from EUR 5,200 / month | 1 FTE, EU nearshore |
| USD reference MVP | USD 28,000 - 50,000 | international clients |
Ranges after DDT. Compare with a US senior Medusa hire (roughly USD 130-165k/year FTE) plus recruitment time.
Medusa agency vs freelancer vs in-house hire
| Criterion | GMI Software (agency) | Freelancer | In-house senior hire |
|---|---|---|---|
| Time to first release | 4-6 month MVP | Depends on solo capacity | 3-6 month hiring |
| Medusa v2 + mobile + ERP | Single partner | Rarely full-stack | Needs a team |
| Delivery risk | DDT + fixed price | High without PM | Fixed payroll |
| Year-1 cost | Project or team lease | Lower, slower | USD 130-165k US market |
| GMI sweet spot | B2B, migrations, omnichannel | Small customizations | Large in-house product |
When is a Medusa agency engagement with GMI not the best fit?
Small customizations without a product roadmap
For one-off tweaks a Medusa freelancer can be cheaper than a full agency process.
Large in-house product team hiring seniors
With a stable 5+ person team and a long horizon, in-house hiring can beat agency delivery.
Simple D2C without B2B or integrations
Shopify Plus can be a faster start if you do not need custom workflows or ERP.
Cooperation process
How does our cooperation look like?
A transparent process that leads from idea to finished product
Step 02
Medusa v2 architecture
Modules, event bus, B2B workflows, multi-region and data strategy.
Step 03
Core development
Catalog, checkout, payments, promotions, custom TypeScript modules.
Step 04
Next.js storefront
ISR, i18n, CRO, analytics and conversion testing.
Step 05
ERP/PIM integrations
Stock, orders and price list sync with retries and monitoring.
Step 06
Launch & SLA
Load tests, rollout, campaign support and evolution roadmap.
Key benefits
Why choose us?
Business outcomes first—technology is the means, not the end in itself.
Medusa v2 in production
Domain modules, not a monolith fork.
ERP and OMS
Experience in messy integration landscapes.
Omnichannel
Same backend for web and React Native apps.
Fixed price after DDT
Fixed-price guarantee after scope workshop.
FAQ
MedusaJS development FAQ
Are you a Medusa development partner?
GMI Software ships MedusaJS v2 in production with B2B modules, marketplaces and ERP integrations. See portfolio at gmi.software - we reply with an estimate within 48 hours.
Can I hire dedicated Medusa developers?
Yes. Dedicated FTE with a GMI architect, code review and Medusa v2 + NestJS + Next.js commerce experience.
How long does migration from Magento or WooCommerce take?
Typically 4-9 months depending on integrations and catalog data quality. We start with an audit and domain map.
Do you build Next.js storefronts?
Yes. Next.js App Router, ISR, i18n and analytics are our default Medusa v2 storefront stack.
How do you work with US/UK teams?
English delivery, CET overlap with Western Europe, 2-week sprints and demos every iteration. Poland nearshore vs US agency rates.
Technologies
What technologies do we use?
Modern tools and proven solutions for the best results
MedusaJS
Backend
Next.js
Frontend
NestJS
Backend
PostgreSQL
Database
TypeScript
Language
R
Redis
Cache
Guides and proof
Articles, technology pages and case studies that support your buying decision.
Headless & B2B commerce
Broader context: ERP, omnichannel and Next.js storefront.
Read moreMedusaJS 2.0 technology expertise
When Medusa fits, platform comparison and enterprise modules.
Read moreMedusa vs commercetools vs Saleor - B2B
Open-source vs enterprise SaaS for cost and MVP speed.
Read moreMedusa vs Shopify Plus - TCO
When Medusa wins financially on a 3-year horizon.
Read moreMedusaJS implementation cost in 2026
Agency ranges and dedicated developer model.
Read moreMagento to Medusa migration
Phased guide for B2B and headless.
Read moreService scope
What does the service include?
Below is an example scope of work that we adjust to the stage and goals of the project.
Greenfield and Magento / WooCommerce migrations
B2B modules, marketplaces, subscriptions
Next.js storefronts and mobile apps
Dedicated Medusa team (team extension)
Observability and post-launch support
Ready to start?
Schedule a free consultation and learn how we can help with your project. After our DDT process (Discovery, Design & Technology), we offer a price guarantee and a fixed-price agreement.
Preliminary estimate in 48h
Fixed price after DDT — price guarantee
No commitment
We can sign NDA
Contact
Let's talk
about the project.
Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.
gmi.software Sp. z o.o.ul. Jana Heweliusza 11 / 819
80-890 Gdansk, Poland
80-890 Gdansk, Poland
NIP: 5252816287KRS: 0000830003
Free consultation
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