You partner with peer Principal Architects on the development of target-state architecture and multi-year roadmaps across a diverse estate that includes infrastructure data platforms, mainframe and midrange compute, payments infrastructure, electronic trading services, enterprise data services, and digital workflows. Experience making and documenting complex architecture decisions, including trade-offs across availability, performance, security, cost, maintainability, and regulatory or control requirements, with a strong risk and controls mindset covering secure-by-design practices, least privilege, cyber and operational resiliency, disaster recovery, auditability, data governance, and production readiness.