Lead Software Engineer
External
Nubank · Palo AltoPrepare for this interview
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About the role
Nu is one of the largest digital financial platforms in the world, with more than 130 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building. Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human. Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company's Most Innovative Companies, and Forbes World's Best Bank. Visit our institutional page https://international.nubank.com.br/careers/ . 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. You'll be responsible for 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. We are looking for a person who has Required 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.
Requirements
- 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.
- Location & Work Model
- Location: Palo Alto, United States.
- Work model: 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/ .
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