Contract: 6 months
Rate: £600-£650 per day (Outside IR35)
Location: London, Hybrid

An experienced Solution Architect is required to lead end-to-end architecture for a large-scale B2B banking RTL and Payments Transformation programme within a complex financial services environment. This role will own solution design across multiple workstreams, ensuring a cohesive, scalable and resilient architecture aligned to regulatory, operational and commercial requirements.

The programme spans core B2B banking capabilities, including payments, reconciliation, KYC, cash management, monitoring and billing. You will play a central role in shaping an event-driven architecture, working closely with senior stakeholders, peer architects and offshore delivery teams, while providing strong architecture governance and design assurance.

Key Responsibilities

• Own solution architecture and high-level design across multiple workstreams
• Define and govern event-driven architecture patterns including streaming and asynchronous integration
• Manage cross-domain dependencies and complex integrations across B2B banking platforms
• Lead architecture governance, design approvals and technical decision-making
• Ensure non-functional requirements are met, including scalability, resilience, security and compliance
• Facilitate design workshops and maintain the solution architecture roadmap
• Collaborate effectively with onshore and offshore teams

Required Experience

• Strong background in Solution Architecture with extensive HLD ownership
• Hands-on experience designing event-driven architectures (Kafka, streaming, async patterns)
• Solid understanding of microservices, APIs and cloud platforms (AWS and/or Azure)
• Proven experience within B2B banking and payments, including SEPA, SWIFT, Faster Payments and ISO 20022
• Track record of delivering architecture on large-scale banking transformation programmes
• Experience operating in complex, multi-vendor and offshore delivery environments

Desirable

• TOGAF or equivalent architecture governance experience
• Exposure to CRM platforms, billing and monitoring systems
• Strong stakeholder management and workshop facilitation skills

This is a high-impact contract role suited to an architect who enjoys shaping complex B2B banking and payments transformations and operating at both strategic and hands-on design level.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.