Integration Architect

Hi,

Integration Architect
1 year FTC
London, UK (Hybrid)

Must have experience in NATS (Kafka/Pulsar accepted)

Description:
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

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 life cycle, 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