Legacy ERP bridge for a precision-optics manufacturer

A maker of high-precision lenses wanted to offer international customers in medical and aerospace engineering modern, browser-based delivery tracking and configuration confirmation. But the critical operating and configuration data sat in an old, closed flat-file database system that had no network interfaces or web connectivity whatsoever.

The internal administrative and production staff were lightning-fast with the existing text-based terminal interface. Key sequences drilled over years let them enter complex lens recipe values in seconds — entirely without a mouse. Management's original plan to replace the complete software ecosystem threatened massive friction, months of slowdown and considerable licensing costs.

We built a pure data bridge that fully shielded the internal production team from any change. The experienced technicians kept their familiar terminal interface and their memorized key sequences without a single change — while, in parallel, the external contacts got a modern, clear web view fed by an automatic background sync.

As a solo engagement, we developed a secure, read-only extraction daemon that ran directly on the host server. Every five minutes it performed incremental delta scans of the binary flat files, serialized new records and transferred them to a cloud-hosted relational database. We wrapped this cloud database with a modern, hardened customer portal built on established open-source web frameworks.

International customers now tracked their order status independently through the portal; the number of customer-service enquiries dropped noticeably. Production noticed none of it.

Internal entry speed stayed at its historic peak, completely unaffected by the new system. The case showed that modern, outward-facing capabilities can be built without destroying highly efficient legacy workflows on the inside.