HolyConnect
Middleware between an enterprise retailer’s ERP and everywhere it sells. Systems such as Nebim and Giz are connected to Shopify and the Turkish marketplaces, and 40+ retail brands run on it.
The problem it solves
In an enterprise retailer, stock, pricing and orders live in the ERP while selling happens on Shopify and the marketplaces. Rather than that link being wired up brand by brand, it is solved once: ERP data comes in one end and the sales channels connect at the other.
Full stack, not just the surface
Work spans a Next.js frontend and a .NET microservices backend. Shipped across both: an omnichannel inbox on the Meta Graph API carrying WhatsApp, Instagram and Messenger, the marketplace integrations, CAC/LTV analytics, the multi-tenant backoffice, and the role and permission model that decides who may touch what.
MCP and AI
MCP-based integrations mean a merchant does not have to navigate an interface to manage a workflow or reach an internal tool, and the repetitive part of the operation automates itself.
Keeping it alive in production
Integration health is owned for 27 of those brands. When a product, stock, price or order fails to sync between an ERP and a channel, it is traced to root cause — Grafana and Loki for the logs, PostgreSQL for the state, and a read of the service code when neither of those explains it.
STACK
- Next.js
- TypeScript
- .NET 9
- CQRS/MediatR
- PostgreSQL
- Redis
- RabbitMQ
- MCP
- Meta Graph API
- Shopify Plus
- Grafana/Loki