Job Title: FIS IST Switch Expert
Location: London
Employment Type: Contract

Role Overview:

We are seeking an experienced FIS IST Switch Expert to lead the architecture, implementation, optimization, and support of the FIS International Switching (IST) platform. The ideal candidate will play a critical role in ensuring high availability, scalability, regulatory compliance, and seamless transaction processing across ATM, POS, and digital payment ecosystems.

This role requires deep expertise in payment switching, enterprise architecture, transaction routing, and modernization of legacy payment infrastructures into API-driven and cloud-enabled environments.

Key Responsibilities:

• Define target-state architecture for FIS IST across ATM, POS, and digital payment...