We’re looking for a Principal Payments Architect to join our growing team in London. This is a specialised architectural leadership role focused on shaping and delivering enterprise-grade payment platforms - from gateway and authorisation layers through to clearing, settlement, and financial management.

This role is suited to someone who thrives in complex, high-stakes environments and operates confidently at the intersection of business strategy and technical execution. You will engage across the full lifecycle - from early discovery and architectural shaping through to delivery oversight - ensuring that solutions are scalable, secure, commercially viable, and aligned to long-term platform strategy.

You will be responsible for designing robust, maintainable architectures that address real client challenges. You will define target-state platforms, challenge assumptions constructively, and ensure that technology decisions are grounded in strong do...