Wise helps banks, software companies, and large enterprises use Wise's infrastructure to offer their customers cross-border payment products through our API. We're a cross-functional team across sales, implementation, product, engineering, compliance, and analytics, based in New York, London, and Singapore. We're looking for a Senior Backend Engineer II to join our Partner Experience team in London. The Partner Experience team builds and runs the systems that let enterprise partners go live faster and manage their day-to-day operations in one place.  We own the Partner Portal (used by many big banks to manage transfers, report fraud, handle compliance requests, and manage their teams) and the backend services behind partner onboarding, permissions, and communication.  Most of what we build is new. There's no existing playbook for enterprise partner tooling at this scale, so you'll be designing systems from scratch more often than maintaining existing ones.   What will you be working on?: • Backend microservices for partner-facing features: fraud reporting, case management, RFI handling, audit logging, and transaction visibility. • The permissions and role-based access control system that governs what partners can do in the portal. • SSO (SAML 2.0) integration for enterprise partners, including solving identity mapping between partner systems and Wise. • The communication layer services between Wise and partners, extending them to handle new case types and workflows. • API design for partner-facing endpoints. We care about consistency, documentation, and making them usable without hand-holding. • Work with FinCrime, Compliance, and KYC teams to bring sanctions RFI workflows and fraud reporting into the portal. • Technical discovery: mapping existing systems, evaluating dependencies, producing design documents that become the team's source of truth. • Production support and debugging when live partner issues come up.