Lead Software Engineer

As a Software Engineer, you will join a small, senior group shaping the core technology that powers Nubank globally — from data and experimentation platforms to shared services that support products across multiple business units and geographies. The work is highly 0→1, with a strong emphasis on long-term impact, technical quality, and global scale rather than one-off features.

Responsibilities

Designing, building, and operating distributed backend services and APIs that support core platforms used by multiple product teams worldwide; Owning services end-to-end — from architecture and implementation to observability, reliability, and continuous improvement in production; Defining clear contracts, SLOs, and guardrails so internal teams can safely build on top of the platforms you own; Collaborating closely with data, ML, and infrastructure engineers to turn models, datasets, and lower-level components into robust, easy-to-use internal products; Leading 0→1 and modernization initiatives, making pragmatic trade-offs and setting technical standards for high-leverage systems.

Requirements

Solid experience as a backend or platform engineer, owning production systems end-to-end (design, implementation, operations, and ongoing evolution); Proven track record working with distributed systems at scale and building APIs or microservices on modern cloud infrastructure; Experience building or supporting platform-level services where many teams depend on your systems for their day-to-day work; Comfort operating in ambiguous, fast-changing contexts and driving 0→1 technical decisions with a long-term mindset; Strong collaboration and communication skills, including working effectively with engineers across disciplines and locations.

Nice to have

Experience with data, ML, or AI-related infrastructure (e.g., experimentation, model serving, or ML platforms) used by multiple product teams; Exposure to highly regulated or safety-critical domains (such as financial infrastructure or crypto) where reliability, compliance, and auditability are essential; Background in fast-growing global tech companies, designing systems that work across products, markets, and regulatory environments; Experience mentoring other engineers and contributing to raising the engineering bar through reviews, discussions, and hiring.

Benefits

Opportunity of earning equity at Nu; Total compensation includes base salary, RSUs and benefits; 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