Lead Mobile Engineer

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 Nu is building a new generation of crypto experiences that make sophisticated financial capabilities feel simple and trustworthy. As a Lead Software Engineer on our Palo Alto crypto team, you will build the customer-facing mobile and full-stack experiences that bring Nu's global crypto offering to life - from the first interaction through the services that power it. Your scope will be a meaningful product area, not a single screen or an isolated service. You will lead team-level technical design, own delivery across mobile and backend boundaries, and make the tradeoffs required to create intuitive experiences without weakening security, correctness, performance, or reliability. You will work closely with product, design, backend and platform engineering, security, and compliance partners. This is a hands-on individual-contributor role with responsibility for mentoring engineers, improving team practices, and remaining accountable for production health after launch. YOU'LL BE RESPONSIBLE FOR - Lead the design, implementation, launch, and operation of customer-facing mobile and full-stack crypto experiences. - Own complete product flows across mobile interfaces, APIs, service integrations, data and state management, release readiness, and post-launch health. - Translate complex concepts such as wallets, asset movement, and onchain transactions into clear, understandable customer experiences. - Make independent team-level architecture decisions and communicate tradeoffs across usability, security, performance, reliability, and delivery speed. - Build resilient transactional experiences with deliberate validation, error handling, recovery paths, testing, and observability. - Coordinate dependencies with backend, platform, security, compliance, product, and design partners to move initiatives from ambiguity to production. - Mentor engineers and raise the team's standards for mobile architecture, code quality, operational ownership, and customer-centered engineering. WE ARE LOOKING FOR A PERSON WHO HAS Required - Strong experience building and operating production mobile applications, combined with the ability to work across APIs and backend services, or equivalent full-stack depth with meaningful mobile delivery experience. - A track record of independently leading a medium-term engineering initiative from technical design through production operation. - Strong foundations in client architecture, state management, API contracts, testing, performance, and reliability. - Product judgment and experience simplifying complex or high-stakes workflows for customers. - Experience designing and operating transactional or security-sensitive product features. - Ability to communicate technical decisions clearly and collaborate effectively with product, design, and engineering partners. - Experience mentoring engineers and improving team-level engineering practices. Nice to have - Experience building crypto, wallet, digital-asset, or onchain product experiences. - First-hand familiarity with crypto products and user journeys through professional work, building, or sustained personal use. - Experience in fintech, payments, banking, or another regulated product environment. - Depth in one or more native or cross-platform mobile ecosystems. - Experience delivering products across multiple markets, platforms, or customer contexts. LOCATION Palo Alto, 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 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.nu.com/nu-hybrid-work-model/ https://building.nubank.com/nu-hybrid-work-model/ Explore how we build technology at Nu: 🔗 building.nu.com.br https://building.nubank.com.br/ 🔗 youtube.com/@building.nubank https://youtube.com/@building.nubank 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. To maintain a consistent and fair process for every candidate, Nu does not provide individualized technical feedback. See how our policy works here https://script.google.com/a/macros/nubank.com.br/s/AKfycbwvrewE58oGSbRWIVv8CyCWN68GLxpPVsfYYXv-ZHg94QFsTJmi82rF1x0yt-OTs2W0DQ/exec