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Lead API Solution Architect - Investment Banking - London (Hybrid)My client, a leading investment bank, is seeking a Lead API Solution Architect for a 6-month contract (inside IR35). This senior role requires strong technical leadership, deep API expertise, and experience in regulated environments. Key Responsibilities: Define and lead enterprise API strategy and architectureDrive API adoption and governance across teamsEnsure secure, scalable integration with legacy and cloud systemsMaintain compliance with financial regulationsMonitor and optimise API performance and developer experience Experience Required: Proven leadership in large-scale API programmesExpertise in REST, OAuth2, OpenAPI, and API securityFamiliarity with banking processes and Open Banking standardsCloud (Azure/GCP), CI/CD, and integration tools (Kafka, IBM MQ)Strong stakeholder management and strategic thinking If the role is of interest please apply with your updated CV