Job Title: Senior Apache Cassandra Engineer

Job Location: London, UK (Hybrid)

Job Type: Contract

About the Role

We are seeking an experienced Senior Apache Cassandra Database Engineer to join our Business Platform team supporting critical Financial Crime and Payments systems. You will play a key role in designing, building, and operationalising a high-performance Apache Cassandra platform that underpins a real-time payment capture and replay solution for fraud detection.

This role requires deep technical expertise in Apache Cassandra, NoSQL data modelling, performance optimisation, and production support within a highly regulated financial services environment. You will work closely with application, infrastructure, middleware, and security teams to deliver a resilient, scalable, and secure data platform.

Key Responsibilities

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