Senior Fintech Architecture Lead – AWS, Scalable Payments

KAST is seeking a seasoned Architecture Lead to own and drive the technical strategy for its global fintech platform. You will be the primary technical authority for system design, ensuring high-throughput engines and complex microservices remain resilient, secure, and performant under massive load.

You will partner with Engineering, Product, and Security leadership to set the standards for how we build, deploy, and evolve our transactional infrastructure on AWS. Location: London, Hybrid.

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