Senior Systems Engineer - AI-Driven Banking Platform

FIS Banking Solutions UK Limited is seeking engineers to build, operate, and scale Ledger Store, a replicated double-entry ledger recording every money movement on the platform. The role requires ensuring exactly-once transfers, crash resilience, and consistent state across replicas with low latency and high throughput, across cloud and on-prem deployments.

Applicants should have experience in distributed or durable systems, strong judgement on correctness and performance, and ownership from