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The Mobile Platform’s mission aligns with Nubank’s commitment to delivering the best experience for our customers by ensuring a high-performing, stable, and seamless app.
Within Mobile Platform, App Core focuses on providing user-friendly, scalable, high-performing, and cost-efficient app infrastructure components and mobile tools that enable Nubank engineers to quickly and safely test, deploy, monitor, analyze, and improve app flows and features.

App Core is at the heart of the Nubank app’s foundation, powering app performance, infrastructure scalability, and the removal of legacy dependencies to allow our application to grow from millions to potentially billions of fanatic customers.

We are looking for an Engineering Manager to lead the App Core squad — a cross-impact engineering team responsible for building and maintaining the core mobile app infrastructure, optimizing performance, and enabling product teams to deliver high-quality mobile experiences.

This is a strategic leadership role requiring a strong technical foundation, excellent people management skills, and the ability to align execution with Nubank’s long-term mobile strategy. You will guide the team to eliminate bottlenecks, improve app startup time, reduce native dependencies, and drive infrastructure modernization, all while fostering a culture of high performance and collaboration.

• Lead and Grow the AppCore TeamBuild, mentor, and inspire a high-performing team of mobile engineers, fostering technical excellence, ownership, and innovation.
  
  
• Set Vision and StrategyDefine and drive the AppCore roadmap in alignment with Mobile Platform’s mission and Nubank’s two-year engineering vision — including initiatives like achieving sub-500ms “App Ready to Use” startup times.
• Ensure Technical ExcellenceOversee the design, development, and maintenance of scalable app infrastructure components and tools, ensuring performance, reliability, and cost efficiency.
• Cross-Team CollaborationPartner with Product Engineering squads to enable faster and safer delivery of mobile features, guiding them in best practices for mobile architecture, performance optimization, instrumentation, and observability.
• Drive Performance ImprovementsLead efforts to reduce app startup time, optimize critical paths, migrate core systems, and remove legacy/native dependencies.
• Operational LeadershipEnsure the adoption and effective use of internal mobile tools, such as monitoring (Prometheus, Honeycomb), error tracking (Sentry), and performance profiling.
• Stakeholder ManagementCollaborate closely with leaders across engineering, product, and design to align priorities, balance trade-offs, and remove roadblocks.

Must Have:

• Proven experience managing mobile engineering teams or senior-level technical leadership in mobile development.
• Strong technical background with Flutter and/or native mobile development (Android/iOS).
• Solid understanding of mobile software engineering principles, architectural patterns, and modularization strategies.
• Experience with performance optimization, dependency injection, and migration of core systems.
• Knowledge of mobile observability, monitoring, and debugging tools.
• Strong communication skills in English, with the ability to explain complex concepts to diverse audiences.
• Track record of delivering results in ambiguous, fast-paced environments.
  
  

Nice to Have:

• Experience with backend technologies, especially those integrated with mobile applications.
• Familiarity with distributed systems and large-scale app architecture.
• Contributions to internal SDKs, libraries, or mobile design systems.
• Understanding of user authentication, session management, and app state handling.
• Experience leading cross-functional or cross-impact engineering initiatives.

• Impact at Scale: Help shape the mobile experience for millions of customers across multiple countries, with the goal of reaching billions.
• Technical Leadership: Influence the architecture and foundational technologies that all Nubank engineers rely on.
• Innovation-Driven Culture: Work in a dynamic, collaborative environment that values experimentation, continuous improvement, and engineering excellence.
• Career Growth: Develop as a strategic engineering leader, working on complex technical and organizational challenges.