Solutions Architect, London

A major financial market infrastructure is undergoing a multi-year transformation, moving from legacy COBOL-based systems on HPE NonStop to a modern, event-driven, Java-based architecture.

This is not a simple migration. It’s a fundamental shift toward scalable, platform-independent systems built on Linux and containerised environments.

You’ll join a Solutions Architecture team within a Software Engineering function, working across both strategic design and hands‑on delivery.

Your focus will be a large‑scale transformation programme, shaping how legacy platforms evolve into a modern, distributed ecosystem.

• Design end‑to‑end solution architectures across complex programmes
• Translate business and technical requirements into scalable designs
• Act as the bridge between Enterprise Architecture and engineering teams
• Define reusable architecture patterns and contribute to engineering standards
• Collaborate with security, infrastructure, and delivery teams
• Lead or support proof‑of‑concepts and prototype development
• Provide technical leadership, including hands‑on Java development where needed
• Present architectural solutions to a range of stakeholders
• Ensure consistency, compliance, and quality across systems

• Proven background in solution architecture across full delivery lifecycles
• Strong Java and object-oriented design expertise
• Experience with event‑driven architectures (e.g. Kafka)

• Microservices or SOA architectures
• Containerisation and OpenShift
• Experience in regulated or financial environments