Reliability Engineer — Regulatory Reliability

ABOUT NU Nu serves more than 140 million customers, guided by a mission to fight complexity and empower people. The company has been leading an industry transformation through innovative products and human-centered services.   Proprietary technology and data at scale power Nu’s digital platform, built to promote financial access, advancement, and transparency. Its business model thrives on customer love and lower costs, feeding a flywheel of growth and profitability. Visit our Institutional Page https://www.nu.com/2026-en About the role We are looking for a Reliability Engineer to drive reliability, resilience, and operational excellence for Nubank's regulatory infrastructure. In this role, you will own critical reliability outcomes for systems that support real-time interbank transfers, regulatory integrations and key regulatory platforms. You will work across infrastructure, software, networking, security, and operations to keep mission-critical services available, observable, and resilient under demanding regulatory and operational constraints. What you'll do - Own end-to-end reliability for IT regulatory infrastructure services, including connectivity, transaction processing flows, and settlement-related operational workflows. - Define, measure, and continuously improve SLIs, SLOs, and operational health indicators for critical transactions and platforms. - Lead incident response for different severity production events, coordinate recovery, and drive high-quality postmortems with concrete follow-through on corrective actions. - Design and evolve observability for the platform, with emphasis on tracing, queue health, signature validation, infrastructure signals, and early detection of degraded regulatory links or transaction bottlenecks. - Plan and execute disaster recovery and business continuity exercises, including failover validation, contingency readiness, and RTO/RPO verification. - Reduce operational toil through automation, tooling, an