Senior Software Engineer - Reliability

We are looking for a person who has Track record of owning services in production — not just shipping them, but being the engineer responsible for how they behave under real load and real failure. Experience defining and operating against SLOs/SLIs, and using error budgets to influence engineering and product decisions. Experience leading incident response and writing postmortems that produced durable improvements. Hands-on experience with observability tooling (metrics, structured logging, distributed tracing) and using it to diagnose nontrivial production issues. Deep system design experience: distributed services, asynchronous messaging, storage tradeoffs, API design, idempotency, consistency, backpressure, and graceful degradation. Significant industry experience building and operating production software systems in a high-ownership engineering environment. Comfort operating in modern cloud environments (e.g., AWS/GCP), containerized workloads, and CI/CD pipelines, and reasoning about their failure modes. Demonstrated technical leadership: influencing architecture across teams, mentoring strong engineers, and making the people around you better. Pragmatism. You can hold a high reliability bar while still helping a fast-moving squad ship. Location for this opportunity (City, Country) Miami, United States Our Benefits Opportunity of earning equity at Nu Medical Insurance Dental and Vision Insurance Life Insurance and AD&D Extended maternity and paternity leaves Nucleo - Our learning platform of courses NuLanguage - Our language learning program NuCare - Our mental health and wellness assistance program 401K Saving Plans - Health Saving Account and Flexible Spending Account Work-from-home Allowance Relocation Assistance Package, if applicable. Work Model for this Role Hybrid 2-3 times/week : Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/ Explore how we build technology at Nubank: 🔗 building.nubank.com.br ↗ 🎥 youtube.com/@building.nubank ↗ 🎧 Listen to our stories on Spotify ↗