Headless and custom e-commerce
E-commerce architecture for companies that have outgrown a standard store.
We separate the sales frontend from the backend, connect the ERP, loyalty and logistics and automate processes from order to delivery. For companies with a large catalog, several sales channels and processes of their own.
Projects from €35,000 · discovery from €3,000
Channels
- Web store
- Mobile app
- B2B portal
- AI chat
API and orchestration
- API layerGraphQL, REST
- Queues and webhooksReliable data exchange
- SearchCatalog index, AI
Systems
- Magento 2 or custom
- ERP
- Banks and credit
- Courier services
- Loyalty
Honesty first
Headless is not for every store.
Headless brings freedom and speed, but also a larger scope of development and maintenance. We recommend it only when it pays off.
Headless is the right choice when
- You sell through several channels: web, app, B2B portal
- You have a large catalog or complex pricing rules
- Campaigns bring sudden traffic spikes
- You have processes that standard platforms do not cover
- You want to change the frontend independently of the backend
Magento 2, WooCommerce or a custom store is the better choice when
- You sell through one channel
- You have a smaller maintenance team
- Your build budget is up to €30,000
- A fast launch matters more than full freedom
What we build
One system instead of ten connected by hand.
- 01
Process automation
The order goes to the ERP and the courier service automatically, and the customer receives the delivery status. No manual retyping.
- 02
ERP and business software
Products, prices, stock and customers synchronized with the system you already work in.
- 03
Loyalty system
Points, customer tiers and personalized offers, connected to online and in-store purchases.
- 04
Multiple stores and markets
Several languages, currencies and domains from one system, with a shared catalog.
- 05
B2B portal
Customer-specific price lists, discounts, credit limits, quick order by SKU and order history.
- 06
AI search and chat
Search by meaning and an assistant that answers from the store’s data, with handover to an operator.
Automation
From order to delivery, without manual work.
Every step is an event in the system. When something stops, the team gets a notification pointing to the exact place of the error.
- 01
Order
Web, app or B2B portal
- 02
Payment
Card, installments or online credit
- 03
ERP
Stock reservation and document
- 04
Courier
Shipping order and tracking number
- 05
Customer
Email and SMS with the status
- 06
Loyalty
Points for the next purchase
AI in development
We build with AI. Solutions are faster and timelines shorter.
We use AI tools at every stage of the build, from analysis to optimization. That is why the code is written faster, goes through more checks and reaches production optimized.
- 01
Analysis
AIReview of the existing code, catalog and processes before the proposal.
- 02
Architecture
AIComparison of solution options and technical documentation.
- 03
Development
AIThe groundwork for modules, integrations and migration scripts.
- 04
Code review
AIPerformance, security and platform standards on every change.
- 05
Testing
AIAutomated tests for the cart, payment, order and ERP.
- 06
Optimization
AIDatabase queries, caching and page loading, measured before and after.
AI does not replace the team: a developer reviews and approves every change. The code is yours.
Shorter build times
AI takes over repetitive work. The team spends its time on your business logic and integrations.
An optimized, fast site
Optimization is part of every release, not a separate phase at the end of the project.
Reliable releases
Key purchase flows are tested automatically before every release to production.
Client work
Tehnomanija: a catalog the size of an electronics chain.
A Magento 2 store built from scratch around the company’s processes. Fullo leads development and maintenance.
Thousands of daily visitors
Running on this stack (custom, Astro + Payload)
zlatara.netJewelry, diamonds and watches; campaigns and collections the marketing team changes on its own
Lighthouse mobile: 98, LCP 2.2 s (Oct 2026)
zlatnarezerva.comInvestment gold: offer and inquiry
How we start
A discovery phase before the development proposal.
A large system should not be estimated by guesswork. In 2–4 weeks we map the processes and systems, and you get a phased proposal with a verified scope.
- Duration
- 2–4 weeks
- Price
- from €3,000
The discovery phase counts toward the project if we continue working together.
- 01
Workshops with your team
Sales, warehouse, finance, IT and marketing.
- 02
Process and system map
Where each piece of data is created and who uses it.
- 03
Technical architecture
Platform, integrations, hosting and choice of technologies.
- 04
Phase plan and proposal
Timelines, scope and price per phase.
Technical consultation
Talk to the team that will build the system.
We go through your systems, processes and goals. After the call we suggest whether you need headless and what the discovery phase would look like.
+381 63 1338 565
support@fullo.dev
Technologies: Magento 2 and Adobe Commerce, Hyvä, Astro and Payload, React and Next.js, GraphQL and REST APIs. AI tools in development, code review, testing and optimization.