Integration Architect

Role: Integration Architect Location: London, UK Type: FTC / FTE / Contract Inside/Outside Hybrid - 4 days office Mandatory

Note: Hands-on Integration Architect with Banking Domain Experience, event driven Architecture, either Hands-on KAFKA or NATS

Drive use of AI tools to improve development efficiency

Hands-on Integration Architect for Project Compass, 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 (SWIFT, ISO 20022, settlement) FX (trade lifecycle, rates, positions) Risk/Limit Management Client onboarding (KYC, account setup)

Experience Required: 15+ years in tech, 5+ years in integration architecture Proven delivery in large-scale financial/fintech systems Strong hands-on + stakeholder management capability Experience leading multi-team integrations