Senior Software Engineer (Lending Team) at SumUp in São Paulo

At SumUp , we believe small merchants are the heartbeat of our communities. By joining the Lending tribe , you'll help launch a new financing product designed for the roughly 50 million registered and informal sole traders in Brazil who currently can't access affordable credit. As a Senior Software Engineer , you'll be the technical anchor of a brand new squad, operating with real autonomy. This is a role for someone who's energised by ambiguity, comfortable owning hard decisions without a playbook to follow, and excited to help shape a lending product from the ground up in a fast-moving, regulated market. What you'll do Build the onboarding journey: Design and build the onboarding experience for non SumUp customers, including KYC and Open Finance account and income data integration Own the repayment integration: Lead the technical relationship with our Open Finance partner alongside the Bank squad Deliver the product end to end: Build the core lending product experience, from credit assessment through to servicing and collections Power the credit decisioning: Connect Open Finance data to underwriting models to support fast, reliable credit decisions Set the technical direction: Make high impact architecture calls with minimal guidance, and coach mid level and entry level engineers Navigate the regulatory landscape: Partner closely with the Bank squad, Compliance, and…