Step 01
Discovery & strategy
We analyze sales models (B2B/B2C), channels, compliance (GDPR, Omnibus), and limits of current tools. We define MVP scope and critical integrations.
E-commerce & headless
Commerce platforms (B2B/B2C)
Headless architecture, integrations, and market compliance
We implement modern commerce when off-the-shelf SaaS stops matching your processes: B2B with contract pricing, complex promotions, ERP/PIM/WMS integrations, and owned storefronts. We design a modular architecture — orders, catalog, payments, and logistics connected through APIs. MedusaJS is our primary headless commerce backend — we still recommend a stack aligned with your scale, team, and roadmap.
120+
Delivered projects
100+
System integrations
30
People on the team
Product innovation
E-commerce that feels technically serious
The kind of builds leading brands expect today: headless cores, AI-assisted merchandising, flexible B2B, and payments plus operations without friction - the standard we ship for clients.
Composable commerce
One orders-and-catalog core powering web, mobile, POS, and partner portals. API-first means faster channel experiments and less integration debt.
AI-assisted merchandising
Ranking rules, shelf logic, and recommendations grounded in customer data and behavior - not hand-tuning every campaign.
B2B: lists, contracts, negotiations
Contract-specific price lists, volume breaks, currencies, and payment terms - with permissions and change audit trails.
Checkout: wallets & instant pay
Apple Pay, Google Pay, and local instant methods - less friction at the bottom of the funnel, better mobile conversion.
Inventory & events in near real time
Stock, reservations, and orders synchronized between ERP and frontends - queues, retries, and observable event flows.
Cooperation process
How does our cooperation look like?
A transparent process that leads from idea to finished product
Step 02
Architecture & stack
We design services, APIs, and data flows. We pick the engine (often MedusaJS), storefront, and integration layer.
Step 03
Commerce core & catalog
Products, variants, B2B price lists, promotions, inventory — foundations for automation and scale.
Step 04
Storefront & UX
Fast frontends (e.g. Next.js), CRO, accessibility, analytics, and conversion testing.
Step 05
ERP/PIM/WMS integrations
Stock, orders, accounts, and pricing sync. Queues, monitoring, retries, and event audit trails.
Step 06
Launch & evolution
Load testing, rollout, SLA, and backlog. Support for campaigns and peak traffic.
Key benefits
Why choose us?
Business outcomes first—technology is the means, not the end in itself.
Scalable backend
Headless-first APIs — many channels, one data model.
Deep integrations
ERP, PIM, CRM, payments, logistics — coherent data landscape.
Compliance
GDPR, Omnibus, and controlled pricing workflows.
Omnichannel
Same backend for web, mobile apps, and B2B partners.
Technologies
What technologies do we use?
Modern tools and proven solutions for the best results
MedusaJS
Backend
Next.js
Frontend
NestJS
Backend
TypeScript
Language
PostgreSQL
Database
R
REST / GraphQL
API
Client testimonials
What our clients say?
Case study
Results speak
for themselves.
100 000+
4,9
App StoreApp downloads · 4.9 rating on App Store
SFD app nominated for Mobile Trends Awards 2025 (Commerce). Read more.See the live app
“We talked to many vendors, but after the conversation with Mikołaj from GMI, I felt completely understood and saw my ideas visualized very quickly. That really captivated me, I felt it simply had to succeed. We have a 4.9 rating on the App Store, which I am very proud of. We continue to work with GMI: we have many ideas for further app development.”
Mateusz Pazdan
CEO, SFD S.A.
More partner voices
The same way of working — deliveries for clients across industries.
Below: condensed references from recent years.
Sławomir Rdest
Board Advisor, EMKA S.A. / COO, EMKA Australia at EMKA S.A.
“As long-term clients of GMI Software, we have had the pleasure of working with them for several years. GMI Software stood out during the tender process with their refreshing, positive approach and the professionalism of their CEO and team. The first project was delivered flawlessly, establishing the foundation for a partnership that continues to this day. The GMI Software team members are not only experts in their field but also wonderful people to work with. For any organization seeking a partnership with a reliable and qualified software development company, GMI Software is a fantastic choice.”
5000+
Downloads in 1 month
14
Sprint weeks
Service scope
What does the service include?
Below is an example scope of work that we adjust to the stage and goals of the project.
B2B and B2C models tailored to your organization
Headless commerce and fast storefronts
MedusaJS as a stack pillar when it is the right fit
ERP, PIM, WMS integrations and automation
Price lists, contracts, and complex promotions
Performance, monitoring, and post-launch care
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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