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Norbert Kovalčín
Norbert Kovalčín
Digital Solutions Architect
Available for new projects
E-COMMERCE

E-commerce & Digital Systems

Online stores, booking systems, marketplace platforms. Sell online with payment integration and full management.

10+
E-commerce Projects
3
Payment Gateways Integrated
€2M+
Transactions Processed
What I Build

Custom E-shops

Shopify stores or fully custom solutions. Product catalog, secure payments, order management, shipping integration. Built to sell.

Booking & Reservation Systems

Online reservations for services, courses, rentals, hotels. Calendar management, automated confirmations, payment processing.

Marketplace Platforms

Multi-vendor solutions, auction systems, peer-to-peer platforms. Complex business logic with fair, transparent transactions.

Payment Integrations

Stripe, GoPay, Tatrabanka, and other local EU payment gateways. Secure, PCI-compliant payment processing for any market.

Showcase
Outdoor equipment e-shop
Wine e-commerce store
Kids products online store
Sneaker marketplace
Selected Work
BidBox
Real-Time Auction Platform
Hotel Greenwood
Hotel Website + Booking Integration
Branson Jet Ski Rentals
Rental Booking System
Požičovňa Kolobežiek
Scooter Rental Booking
Tools & Technologies
ShopifyStripeGoPayNext.jsReactNode.jsPostgreSQLSupabasePrismaVercel
FAQ
Shopify is great for straightforward product sales with standard features — fast to launch, easy to manage. A custom e-shop makes sense when you need unique business logic, specific integrations, or full control. I'll recommend the right approach for your situation.
A Shopify-based store starts from €2,000. A fully custom e-commerce solution starts from €5,000. Complex marketplace or auction platforms range from €8,000-20,000+. Price depends on features, integrations, and complexity.
Yes. I work with Stripe (international), GoPay (SK/CZ), Tatrabanka, and other local payment providers. All implementations follow PCI compliance standards for secure transactions.
Yes. I've built auction systems and multi-vendor platforms. These are complex projects involving real-time bidding, multi-party transactions, commission systems, and dispute resolution. BidBox is my showcase project in this area.

Ready to sell online?