[AI Core - Data Intelligence] Mobile Software Engineer IC7

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 This position is for an IC7 Mobile Software Engineer to join the Data Intelligence Squad inside the AI Core BU. About AI Core AI Core is the business unit helping make Nubank an AI-first company. Its mission is to power key decisions and customer interactions on a shared platform that gets smarter with every transaction and conversation. In practice, AI Core sits at the intersection of predictive intelligence, AI-native customer experiences, and platform building: from foundation models that improve credit, risk, pricing, and recommendations, to products like AI Private Banker, to the underlying data, orchestration, and infrastructure that let intelligent systems operate at scale. This is a uniquely high-impact moment for the BU. AI Core is building the foundations that allow Nubank to solve high-value problems with AI, raise the quality of models and responses, and turn promising ideas into production-ready products faster. About the Data Intelligence Squad Data Intelligence is the horizontal data layer that powers Foundation Models and GenAI at Nubank. It unlocks Nubank's data ecosystem by orchestrating, enriching, and serving the signals that help us understand each customer more deeply. We work across the entire ML lifecycle, from building data pipelines and preparing high-quality signals to enabling machine learning experimentation and model improvement. We're now expanding our scope to customer data collection through the Nubank app — and that's where you come in. As an engineer on the Data Intelligence Squad, you'll lead efforts to collect additional device metadata from customers – for example, by integrating third-party SDKs into the app. This data will power improvements to our Foundation Models — which drive high-impact use cases across the company, including credit and lending models — and will underpin new product lines such as Location Intelligence. What we're looking for An IC7 Mobile Software Engineer with more than 6 months of tenure who: Has hands-on experience shipping changes to the Nubank app . Can evaluate the impact of app changes, safeguarding latency, reliability, and customer experience against regressions. Operates at multiple altitudes — writing code, shaping technical direction, and aligning with stakeholders. Thrives in high-ambiguity environments, takes strong ownership end-to-end, and has a clear bias for action. Raises the bar of the team — through mentoring, technical leadership, and proactive collaboration. Bonus : has integrated third-party SDKs into the Nubank app. Bonus : can also operate on the backend side, e.g., building services to collect data from the app and store it in the ETL. What we offer Opportunity to work on 0 to 1 projects with M-Team visibility. Opportunity to contribute to projects that have direct and outsized impact on PNL. High-impact problems with real product reach, helping shape AI-native experiences inside the Nubank app. A senior, high-caliber environment with close partnership across product, platform, and AI teams. Plenty of ownership and room to shape the path forward in a space that is still being defined. The chance to build with ambition and speed, while helping create the foundations that let AI products, models, and flows scale across Nubank. Contact Helder Dias→ Slack: @helderdias 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.