Senior Software Engineer - SRE

Nubank; Miami (FL); Hybrid; USD 140,000 - 210,000; Full time

Benefits offered by this job

Equity

Medical Insurance

Dental & Vision Insurance

Life Insurance

Extended leaves

Learning platform

Language learning

Mental health program

401K

HSA/FSAs

Work-from-home allowance

Relocation assistance

Job summary

Nubank is seeking an engineering leader for the U.S. Market Team to ensure production reliability of our scalable financial platforms. The role emphasizes SLO/SLI discipline, incident response, and strong observability, with a focus on building reliable services for a high-demand market in Miami.

You will own reliability, lead blameless postmortems, and mentor engineers while collaborating with product and security teams to maintain a fast and safe delivery cadence. Hybrid work model in Miami.

Qualifications

• Experience owning services in production and being responsible for behavior under real load and failure.
• Experience defining and operating against SLOs/SLIs and using error budgets to influence decisions.
• Experience leading incident response and writing postmortems that produced durable improvements.
• Hands-on experience with observability tooling (metrics, structured logging, distributed tracing) and diagnosing production issues.
• Deep system design: distributed services, asynchronous messaging, storage tradeoffs, API design, idempotency, consistency, backpressure.
• Significant experience building and operating production software in high-ownership environments.
• Comfort operating in cloud environments (AWS/GCP), containerized workloads, and CI/CD pipelines; understanding failure modes.
• Demonstrated technical leadership: influencing architecture, mentoring engineers.
• Pragmatism: balancing reliability with fast shipping.

Responsibilities

• Define and operate against SLOs. Establish meaningful SLIs and SLOs with partners, manage error budgets and use them as inputs for prioritization.
• Build the observability layer: improve metrics, logs, traces, and alerting, push instrumentation upstream.
• Lead incident response as incident commander when needed and drive blameless postmortems.
• Reduce toil through engineering: automate repetitive work and improve tooling to avoid overhead.
• Production hardening: stress-test designs for partial failure and spikes; ensure resiliency.
• Make change safe and fast: progressive delivery, feature flags, canaries, rollbacks, migrations.
• Improve developer experience by removing operational friction and filling platform gaps.
• Partner across disciplines: collaborate with product, platform, security, and other teams to communicate risk.
• Raise the engineering bar: mentor, review designs, and set standards.

Skills

SLO/SLI management

Incident response

Observability

Distributed systems

Cloud environments

CI/CD

Technical leadership

Pragmatism

Tools

AWS

GCP

Kubernetes

Job description

About Nu

Nu is the leading digital bank in Latin America, serving 135 million customers across Brazil, Mexico, and Colombia. The company has been leading an industry transformation by leveraging data and proprietary technology to develop innovative products and services.

Guided by its mission to fight complexity and empower people, Nu caters to customers’ complete financial journey, promoting financial access and advancement with responsible lending and transparency. The company is powered by an efficient and scalable business model that combines low cost to serve with growing returns.

Nu’s impact has been recognized in multiple awards, including Time 100 Most Influential Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Banks.

Visit our Institutional Page

About the role

The U.S. Market team is launching a differentiated financial product in the largest and most demanding financial market in the world. We’re iterating quickly on real customer signals while building systems that will eventually serve customers at Nubank scale. That combination — early-stage velocity, regulatory weight, and high reliability expectations, requires an engineer whose primary mandate is reliability, scale, and operational excellence.

This role exists to make sure the systems we’re building today can be trusted in production tomorrow, and to set the bar for what “production-ready” means on this team. The engineer in this role delivers their mandate by writing production code, shaping architecture, and engineering the systems themselves — not by absorbing operational load.

You'll be responsible for

Define and operate against SLOs. Establish meaningful SLIs and SLOs with product and engineering partners, manage error budgets, and use them as real inputs to prioritization rather than dashboards no one reads.

• Build the observability layer. Improve metrics, logs, traces, and alerting so issues are detected early, attributed precisely, and debugged with code-level confidence. Push instrumentation upstream into the services we own.




• Lead incident response. Act as incident commander when needed, drive blameless postmortems, and turn findings into concrete engineering work that lands. Build the muscle in the team so this isn’t centralized in any one person.




• Reduce toil through engineering. Identify repetitive operational work and eliminate it with software — automation, self-healing behavior, better defaults, better tooling — rather than absorbing it as ongoing overhead.




• Production Hardening. Stress-test designs for partial failure, dependency degradation, traffic spikes, and adversarial inputs. Run capacity and performance work before incidents arise. Ensure resiliency primitives are tuned and working correctly.




• Make change safe and fast. Improve release safety through progressive delivery, feature flags, canaries, rollbacks, and tested migrations. Help the squad ship faster and with lower blast radius.




• Improve developer experience especially where it removes operational friction or improves change safety. Where internal tooling or platform gaps slow the team down, build or contribute the fix. Prefer leverage over heroics.




• Partner across disciplines. Work closely with product, platform, security, compliance, and other engineering teams. Translate reliability and risk tradeoffs into language each audience can act on.




• Raise the engineering bar. Mentor engineers, review hard designs and PRs, and shape technical standards across the squad. Lead through clarity and judgment, not authority.

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:

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youtube.com/@building.nubank

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Our recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis, to support the evaluation process. Artificial intelligence is not used to make final hiring decisions; all decisions are made by human reviewers.