Integration Architect

Integration Architect London - Hybrid (4 days office Mandatory) Fixed Term Contract - 1 Year 85,000pa - 120,000pa My client is looking for an Integration Architect with Hands-on experience ideally within a Banking Domain. Event driven Architecture, either Hands-on KAFKA or NATS Hands on Integration Architect, driving real-time Ledger (RTL), Payments, and FX systems integration within a large banking platform. Deep integration expertise + cloud-native mindset Strong communicator and technical leader Familiar with AI-assisted development tools NATS experience is required (Kafka/Pulsar accepted) Key Responsibilities: Define and own target-state integration architecture aligned with enterprise standards Lead end-to-end integration delivery across multiple systems and teams Design event-driven, API-first, cloud-native solutions (NATS, REST, async messaging) Create architecture artefacts (blueprints, APIs, ADRs) Act as integration authority across platforms and stakeholders Mentor teams on integration patterns, API governance, and best practices Drive use of AI tools to improve development efficiency Tech Stack Integration: Event-driven architecture, NATS (or Kafka/Pulsar), messaging patterns Backend: Java, Spring Boot, microservices, REST/gRPC Cloud: AWS (EKS/ECS, SQS/SNS, API Gateway, Terraform) API: OpenAPI/AsyncAPI, versioning, governance Frontend: React/TypeScript (working knowledge) Domain Expertise (any of these) Real-Time Ledger (accounting, event sourcing) Payments ..... full job details .....