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Custom E-Commerce Development · Celje, Slovenia

Custom E-Commerce Development in Celje, Slovenia

Celje businesses tell us what they sell and how they want to sell it; our engineers turn that into a custom custom e-commerce platform, an admin system and a mobile app shaped around their operations. Checkout with Visa and Mastercard and Flik mobile payments, delivery through Pošta Slovenije or your own team, and VAT-ready invoicing.

  • Web platform + Android/iOS app
  • Visa and Mastercard and Flik mobile payments
  • Delivery via Pošta Slovenije
  • Demo within 24 hours
Engineer writing code for a custom e-commerce platform — Celje

Quick answer

Who builds a custom e-commerce platform in Celje, Slovenia?

NNT Mart by N&T Software builds custom custom e-commerce platforms and mobile apps for businesses in Celje, Slovenia, designed to each client's requirements. Platforms support Visa and Mastercard, Flik mobile payments and PayPal, ship through Pošta Slovenije and GLS Slovenia, follow the GDPR and the Personal Data Protection Act (ZVOP-2), and come with a free demo within 24 hours of the requirements meeting.

Key takeaways

  • Every NNT Mart custom e-commerce platform in Celje is engineered to the client's own brief — the web platform, the admin panel and, when you need one, a mobile application built for your workflow.
  • Checkout ready for Visa and Mastercard, Flik mobile payments and PayPal, with delivery through Pošta Slovenije and GLS Slovenia or your own team.
  • VAT-ready invoicing and controls designed around the GDPR and the Personal Data Protection Act (ZVOP-2).
  • Free demo within 24 hours of the requirements meeting; you own 100% of the source code after final payment.

Why Celje businesses are investing in custom e-commerce platforms

Celje is a commercial centre in Slovenia home to about 37,000 people, and one of the places where we build custom e-commerce platforms for local businesses.

The local economy is driven by manufacturing, metals, trade and logistics, and commercial activity concentrates around the city centre and the Celje industrial zone.

Logistics are supported by The A1 motorway and the Celje rail junction, which matters when you promise customers fast delivery.

Slovenia has SMEs make up 99% of all businesses in the European Union (European Commission). Slovenia is a compact, high-income EU market where many brands (Elan, Gorenje, Petrol) export. Digital-first shoppers expect eurozone-quality delivery and English/Slovenian storefronts.

That is why more companies in Celje are moving from phone, WhatsApp and spreadsheet orders to a proper custom e-commerce platform — one place where products, prices, payments, orders and customers are managed together.

What makes a Celje store feel local

Conversion in Celje depends on small local signals — the right currency, the right words and the right payment and courier names.

Currency and pricing

Prices, taxes, shipping and refunds are shown in euro (EUR), formatted the way Celje customers read them.

Language and content

We localise pages, emails and notifications into Slovenian, English and German where your audience needs it.

Local trust signals

Trust is local: familiar names such as Visa and Mastercard and Flik mobile payments and Pošta Slovenije sit next to the buy button.

Domain, phone and contact

A .si domain (or your own) builds local trust and search relevance. Contact buttons are pre-set with +386, so a customer in Celje taps once to call or message.

Talent and partners nearby

With Celje campuses of regional faculties close by, finding people to manage catalogues, content and support after launch is realistic in Celje.

A custom e-commerce platform built around your Celje business

Whatever your business sells in Celje, N&T Software designs and develops the custom e-commerce platform and the matching mobile app exactly to your requirements — your catalogue, your prices, your payment and delivery rules.

Typical clients include multi-brand groups, businesses outgrowing SaaS platforms, companies migrating legacy stores and regulated sectors. Categories that sell especially well online in Slovenia — sporting goods, electronics, fashion and home appliances — get catalogue structures and filters designed for them.

We start with a requirements meeting, show you a working demo within 24 hours, and only then propose scope, milestones and budget.

What your custom e-commerce platform includes

Nothing here is fixed: modules are switched on, reshaped or built from scratch around how your Celje business sells.

Custom workflows

Product configurators, made-to-order flows, approvals, contracts and industry-specific rules. Catalogues come in from spreadsheets, ERP exports or supplier feeds, so your Celje team keeps its current way of working.

Headless architecture

API-first commerce with a fast front end, so web, app, kiosk and marketplace channels share one backend. Checkout is configured for Visa and Mastercard, Flik mobile payments and PayPal.

Multi-entity operations

Multiple brands, companies, warehouses, currencies and tax registrations on one platform. Delivery can be booked through Pošta Slovenije, GLS Slovenia and DPD Slovenia or dispatched by your own riders around Celje.

Deep integrations

ERP, PIM, WMS, CRM, POS, accounting and legacy systems with reliable, monitored data sync. Stock can be held in Celje or anywhere in Slovenia, with pickup and local-delivery options where they make sense.

Migration

Move from older platforms with product, customer and order history, SEO-safe redirects and parallel runs. Dashboards break sales down by product, customer and neighbourhood of Celje, so you see what to promote.

Performance and security

Caching, CDN, load testing, security hardening, audit logs and cloud infrastructure as code. Pages, search filters and wording are tuned to how people in Celje look for products, in Slovenian and English if your audience needs it.

Payments customers in Celje expect

A store that serves Celje should let customers pay the way they do offline: Visa and Mastercard, Flik mobile payments, PayPal and Apple Pay and Google Pay.

Gateway selection depends on your category and merchant approval; we connect the provider, reconcile payments, automate retries and refunds, and never store raw card data. Prices, taxes and refunds appear in euro (EUR).

For Celje customers ordering from the city centre and the Celje industrial zone, cash-on-delivery and pay-on-pickup rules can be set per delivery zone.

  • Visa and Mastercard
  • Flik mobile payments
  • Bank transfer
  • Revolut
  • Apple Pay and Google Pay
  • PayPal

Shipping, couriers and local delivery in Celje

Your custom e-commerce platform can book shipments and share tracking with Pošta Slovenije, GLS Slovenia, DPD Slovenia, Overseas, Hrvatska pošta (cross-border) and Box Now lockers, or route orders to your own riders and stores across Celje.

Delivery rules can price by distance, weight, postcode or zone, offer same-day slots in dense areas, and switch on pickup points or click-and-collect where customers prefer them.

Connectivity in the area — The A1 motorway and the Celje rail junction — makes regional and national dispatch from Celje practical.

Compliance built into your custom e-commerce platform

For Celje sellers, tax first: Slovenia charges 22% VAT with 9.5% and 5% reduced rates, and uses the EU One-Stop Shop for B2C sales.

On privacy we design around the GDPR and the Personal Data Protection Act (ZVOP-2), enforced by the Information Commissioner; on consumer rights the store reflects the Consumer Protection Act and the Electronic Commerce Market Act, with 14-day withdrawal rights.

Controls we implement include compliant invoices, consent capture, policy pages, restricted staff access and audit trails. Please confirm the final legal and tax position with a local adviser in Celje.

Celje sellers: marketplace plus your own store

For a Celje business, Bolha.com, Mimovrste, Amazon.de and Zalando are useful shop windows — but fees, ranking changes and shared customer data limit how far you can grow on them alone.

With your own custom e-commerce platform you keep the customer data, set the offers and the packaging, and still push stock to marketplaces from a single admin.

Who we build for in Celje

Popular online categories in Slovenia include sporting goods, electronics, fashion, home appliances, food and wine and pharma and health. Local demand in Celje is shaped by manufacturing, metals, trade and logistics, so we often design catalogues and B2B ordering around those sectors. In Celje, we most often build custom e-commerce platforms for:

Enterprises with complex catalogues

Enterprises with complex catalogues get custom workflows plus multi-entity operations workflows tailored to their operations.

Multi-brand groups

We map how multi-brand groups sell today and digitise it end to end — from enquiry and order to payment, dispatch and repeat purchase.

Businesses outgrowing SaaS platforms

For businesses outgrowing SaaS platforms, we usually start with deep integrations, then add WMS and 3PL systems once orders are flowing.

Companies migrating legacy stores

Catalogue, pricing and fulfilment rules designed for companies migrating legacy stores in Celje, connected to the systems you already use.

Regulated sectors

Regulated sectors get migration plus custom workflows workflows tailored to their operations.

High-traffic retailers

We map how high-traffic retailers sell today and digitise it end to end — from enquiry and order to payment, dispatch and repeat purchase.

Add a mobile app for Celje customers

In Celje, shoppers browse on phones first. Because the platform is API-first, customer, staff and partner mobile apps can be added at any point without rebuilding the backend.

Apps are published under your own developer accounts and share the same backend as your custom e-commerce platform, so offers, stock and orders are always consistent between web and mobile.

Push notifications can be timed to UTC+2 so offers reach Celje customers when they are awake, and the interface can run in Slovenian and English.

  • WMS and 3PL systems
  • POS and store systems
  • BI and data warehouses
  • Identity and SSO
  • PIM and DAM
  • Search engines (Elasticsearch, Algolia)
  • Cloud platforms (AWS, Azure, GCP)
  • SAP, Oracle, Microsoft Dynamics and Odoo ERPs

Integrations above are examples; we connect any system that offers a suitable API, database access or approved import and export process.

Launch roadmap and success metrics

We launch the journeys that create value first, then add depth. A typical roadmap for a custom e-commerce platform in Celje:

PhaseWhat goes live
FoundationArchitecture, core commerce, priority integrations and migration. Configured for EUR, Visa and Mastercard and Pošta Slovenije from the start.
DifferentiateCustom workflows, configurators and automation.
OptimisePerformance, new channels, apps and continuous enhancement. Reviewed against how Celje customers actually buy.

Success is measured on page load and API response times, uptime, order-sync accuracy, manual-work hours saved, release frequency and total cost of ownership — tracked on a dashboard you can see from launch day.

Working with our team from Celje

Celje runs on UTC+2, which is 3h 30m behind India (IST). With three 8-hour shifts we are available 24×7, so meetings, demos and urgent fixes happen in your working hours.

Project communication is in English; storefront content can be produced in Slovene. You get a named lead, direct engineer access and an NDA if you ask.

Our head office is in Chhapi, Gujarat, with an office in Hyderabad and representation in Nigeria, South Africa, Ethiopia and Zambia; Celje clients are served remotely with on-site workshops when the project needs them.

Celje — local market for custom e-commerce platforms
Celje · Photo: Wikimedia Commons
Analytics dashboard monitoring a custom commerce platform — Celje

Celje — the market we build for

Celje — custom e-commerce platforms for local businesses
Celje · Photo: Wikimedia Commons
Celje — custom e-commerce platforms for local businesses
Slovenia · Photo: Wikimedia Commons
Sales analytics on a custom commerce dashboard — Celje
Custom E-Commerce Development

How we work

Our delivery process for custom e-commerce platforms in Celje

Your custom e-commerce platform is designed and built to your specification through seven clear stages. Daily updates, weekly reviews and a signed acceptance at each milestone keep the project transparent from the first workshop to the support desk.

  1. 01

    Discover

    ✓ Scope signed off

  2. 02

    Design

    ✓ Architecture OK

  3. 03

    Build

    ✓ Sprint accepted

  4. 04

    Secure & Test

    ✓ UAT signed off

  5. 05

    Deploy

    ✓ Cutover done

  6. 06

    Handover

    ✓ Code handed over

  7. 07

    Support

    ✓ SLA active

Pay only for work you have accepted

There is no standard price list, because every custom e-commerce platform is quoted to your requirements and budget. What is standard is how you pay: a small advance, then milestones released only after written acceptance. An example:

After go-live: warranty, support and a team that stays

Every project includes a free 90-day defect warranty. After that, the same team that built your custom e-commerce platform keeps it secure, updated and running on a fixed annual fee agreed up front — no open-ended hourly billing and no surprise invoices.

You own the code, the data and the IP

For every custom e-commerce platform, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.

Read the full Custom E-Commerce Development delivery process — reporting, payment milestones, warranty, team and engagement models →

Custom E-Commerce Development in Celje — FAQs

Can I also sell on Bolha.com and Mimovrste?

Yes. Your own custom e-commerce platform can sit alongside Bolha.com, Mimovrste and Amazon.de; where APIs allow, we sync products, stock and orders so your team manages everything from one admin.

Do I own the source code of my custom e-commerce platform?

Yes. After full and final payment, 100% of the source code, design files, database schemas, deployment scripts and documentation are transferred to you, with no lock-in or forced subscription.

How much does a custom e-commerce platform cost in Celje?

There is no fixed package price: every NNT Mart custom e-commerce platform is quoted to your requirements and budget after a free requirements meeting and demo. Cost depends on catalogue size, integrations, payment and delivery rules, mobile apps and support. Payments are split into milestones, and 90% is released only after you accept working modules.

Which parts of Celje do you build for?

Clients usually trade around the city centre and the Celje industrial zone, but the platform is not tied to one neighbourhood: delivery zones, pickup points and prices can be set for any part of Celje.

Do you provide support after launch for clients in Celje?

Every project includes a free 90-day defect warranty, followed by an optional fixed-fee annual support package with a dedicated developer, SLA-based fixes and a 24×7 helpdesk across three shifts.

Can you migrate my existing website or store in Celje?

Yes. We review your current platform, products, customers, orders and URLs, then migrate with redirects so you keep search rankings and order history.

Can you build a mobile app along with the custom e-commerce platform for my Celje business?

Yes. We build Android and iOS apps for customers, dealers, delivery staff or administrators on the same backend as your custom e-commerce platform, and publish them under your own Google Play and App Store accounts.

Which couriers do you integrate for deliveries from Celje?

Common choices are Pošta Slovenije, GLS Slovenia, DPD Slovenia, Overseas, Hrvatska pošta (cross-border) and Box Now lockers. We can also route orders to your own riders, stores or warehouses and set rules by zone, weight or delivery slot.

Free demo in 24 hours

Plan your custom e-commerce platform in Celje

Tell us what you sell and how you take orders today. We reply within 10 minutes, meet you to understand your requirements, and share a working demo within 24 hours.

We reply within 10 minutes, 24×7. Your details are used only to respond to your enquiry — see our privacy policy.

Tell us what you sell. We will show you a working demo in 24 hours.

Free requirements meeting, a demo built on your use case and a proposal priced to your budget — with no obligation.

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