■ CASE STUDY · E-COMMERCE INFRASTRUCTURE
Gigatron
How, over a long-term partnership from Magento to the VTEX ecosystem, we connected the web store with ERP, payments, logistics and the processes behind one of Serbia's largest retail networks.
- CLIENT
- Gigatron ↗
- INDUSTRY
- Consumer electronics retail
- SERVICES
- E-commerce development · IntegrationsVTEX · Magento · ERP
- OUR ROLE
- Long-term e-commerce development
- PODCAST
- Listen to the episode ↗
Gigatron is one of Serbia's largest retail chains for tech and electronics, with almost 70 stores across the country and online sales that are an important part of its business.
Our work with Gigatron has spanned several phases of their e-commerce system. It started on the Magento platform and continued through the move to VTEX and the development of the integrations that now connect the online store to the rest of the business.
That is why our work on this project was never just frontend development or individual features. We worked on what happens behind every online order, from the moment a customer sees a product and its availability, through payment, to the ERP, order processing and the choice of delivery method.
01
Challenge
In an e-commerce system of this scale, checkout is only the last part of a much larger process.
A single order has to connect product, price and availability information with internal business systems, payment rules, store locations, warehouses and different delivery models.
With a large catalog and a physical store network, changes that look simple to the customer often require several systems to work together in the background.
Today, for example, Gigatron supports online payment by card, IPS, credit, bank transfer and cash on delivery, while customers can choose between different delivery and pickup options.
Our task was to make all of these processes work as one connected e-commerce experience.
■ DELIVERED
What went into the delivery.
01
Migration from Magento to VTEX
02
VTEX integration with internal systems
03
ERP integration
04
Payment method integrations
05
Couriers, Wolt and in-store pickup
02
Solution
02.1
From Magento to VTEX
Our work with Gigatron began on their previous e-commerce system, built on the Magento platform.
Long-term work there let us learn the business logic, processes and specifics of a large retail system, instead of looking at a new technology stack in isolation from everything behind it.
When the time came for the next phase of their digital transformation, we took part in the move to VTEX, where Gigatron migrated its digital catalog while keeping its existing headless enterprise architecture.
So the platform change was not just a technology migration. Existing business logic had to be carried over to the new environment, and VTEX had to be connected to the systems that daily sales depend on.
02.2
VTEX integration as the foundation of the new e-commerce system
VTEX is the commerce foundation, but for the platform to work in Gigatron's real business environment, a whole layer of integrations had to be built around it.
We worked on connecting the platform to internal systems and on adapting processes so that the customer-facing site and the operational side of the business work in sync.
That means the data a customer sees on the site is not isolated from the rest of the company. It is part of a much larger flow of information that continues after the click on “Order.”
02.3
Connecting to the ERP
One of the central parts of the project was integrating the e-commerce platform with the ERP.
The online store has to exchange data with the system that manages key business information, so that products, orders and other relevant data can move through the company's existing processes.
In a system of this scale, an API connection between two platforms is not enough. You have to understand what happens to an order before and after the data exchange, which state takes priority, and how the system should react when a step does not go as expected.
That is why a large part of our work was on the processes and business logic between the systems, not just on the integration points themselves.
02.4
Payment as part of a wider process
For Gigatron we also worked on integrating different payment methods and fitting them into the complete checkout and order flow.
In a system like this, a different payment method can also mean a different flow for order processing, validation and communication with other systems.
Today Gigatron's online store supports several payment methods, including payment cards, IPS, online credit, bank transfer and cash on delivery.
Our focus was to keep the technical complexity behind those options invisible to the customer, who should get a simple and predictable buying process.
02.5
Logistics that starts at checkout
Delivery at Gigatron does not come down to one courier service and one rule.
We worked on integrations with courier services, Wolt and various logistics processes, so that the delivery method can be set according to the product, the location and the specific order.
Gigatron currently supports courier delivery for smaller products, dedicated delivery options for large appliances, parcel lockers and in-store pickup.
That means logistics is not something that starts only when an order leaves the warehouse. It is part of the system from the moment the customer chooses how they want to receive the product.
02.6
Online and in-store sales as one system
For a retailer with almost 70 stores, the web shop cannot work as a separate store.
Customers expect to check what is on offer online, order a product and pick it up at the right store. Today Gigatron offers online ordering and free pickup at a chosen location when that option is available.
That is why one of the key principles of the project was connecting the digital channel to the existing retail infrastructure, so that the web is not a parallel world but part of the same sales system.
02.7
Long-term development, not a one-off project
We did not treat Gigatron as a project that starts with a new design and ends when the site goes live.
The partnership has gone through different technology generations, from Magento to VTEX, and has included developing the system and adapting it to changes in the business itself.
That is exactly why much of the project's value is not in any one feature, but in the continuous development of e-commerce infrastructure that has to support a large number of products, stores, orders, payment methods and logistics scenarios.
03
Result
Today Gigatron has an e-commerce system in which the web store, VTEX, the ERP, payments and logistics partners are not separate pieces, but parts of one connected process.
Over the years our work has followed the evolution of that system, from development on the Magento platform to the new VTEX architecture and the integrations it needs to work inside a complex retail environment.
The result is not just a site where a customer can buy a product. Behind every purchase is infrastructure that connects the digital store to the company's real processes, from the catalog and payment to order processing and the last step of delivery.
■ IN NUMBERS
~70
Stores across Serbia
5
Payment methods on the site
4
Delivery and pickup options










