Senior Software EngineerPlatform/Core InfrastructureLondon | 4 days a week on siteUp to £120kWe''re working with a London-based fintech that has scaled rapidly in a short space of time. Their platform now processes billions in annual transaction volume, operating across multiple markets and supporting a fast-growing customer base.This is a Senior Platform Engineer opportunity where you''ll take ownership of critical platform initiatives, make key architectural decisions and build the foundations that enable engineering teams to deliver software securely, reliably and at pace.You''ll work across cloud infrastructure, Kubernetes, automation and developer tooling, with the autonomy to take projects from initial design through to production. It''s an opportunity to make a tangible impact on platform reliability, scalability and the developer experience within a complex, distributed environment.What you''ll be doingTaking ownership of major platform initiatives from discovery and design through to implementation and production.Designing, building and operating scalable cloud infrastructure across compute, networking, identity and data.Developing reusable, self-service platform capabilities that help engineering teams deploy and operate services independently.Driving cloud migrations and workload modernisation, improving consistency, resilience and efficiency.Building and maintaining infrastructure automation, deployment pipelines and GitOps workflows.Working closely with ..... full job details .....