Giacom is the only provider of Comms, Cloud, Hardware and Billing through one platform.

Our platform connects technology resellers and service providers to the best IT, Comms and Cloud products and services so they can create brilliant technology solutions for UK businesses.

The C# Developer is an experienced engineer focused on supporting and evolving business-critical legacy billing systems, ensuring a reliable and consistent customer experience. This role is primarily centered on L3 production support, requiring ownership of incident resolution, root cause analysis, and defect remediation in line with agreed SLAs. The developer applies strong engineering knowledge and deep understanding of billing processes to diagnose complex issues and maintain stability across interconnected platforms.

To be successful in this role, you will balance hands-on support and targeted development within a K...