Senior-Staff Principal Full-Stack Engineer AI Private Banker

About Us

Nu is one of the largest digital financial platforms in the world with more than 127 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 were 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 Companys Most Innovative Companies and Forbes Worlds Best Bank. Visit our institutional page

About the Role

We are opening this strategic position in the US to find a highly specialized engineer to help us lead the vision and technical execution of our cutting-edge AI-enabled Private Banking platform (AIPB). This is a high-impact hands-on leadership role (IC8/IC9) for a generalist engineer who thrives on shipping robust consumer-facing mobile applications supported by complex distributed backend systems at massive scale.

You will function as the tech-lead defining the architectural vision and driving engineering excellence for a product designed to financially educate over 100 million costumers. Crucially this is a full-stack engineering position. Your expertise will be in system architecture full-stack implementation and technical leadership.Key Responsibilities:

• Define the architectural vision and take an opinionated stance on the engineering components necessary to scale the product across multiple global markets.
• Architect design and implement features across the entire stack ensuring high performance scalability and security. Frontend Mobile: Lead development on our core mobile platforms preferably using Flutter (iOS/Android).
• Design and maintain high-throughput fault-tolerant distributed systems that power recommendations conversational AI integration and the suite of banking products.
• Collaborate with product and data teams to ensure effective data flow consumption and integration required for the AI-driven features (e.g. real-time user state recommendation output).
• Drive engineering best practices conduct thorough code reviews and mentor engineers on architecture performance and operational excellence.
• Work closely with Product Managers and Design to translate ambitious product goals into a clear phased technical roadmap.
  

Qualifications

Required Expertise

We are looking for candidates with experience in previous launches atscale from top-tier technology companies with:

• Proven experience as a Tech Lead or Senior Engineer shipping complex large-scale consumer-facing mobile applications.
• Deep knowledge of both modern frontend frameworks/mobile development and complex distributed backend system architecture.
• Strong track record of designing building and operating high-throughput fault-tolerant backend services.
• Experience working with and integrating systems with AI not necessarily training models.
• Ability to take complete technical ownership of a major product area making decisive and informed trade-offs on architecture and implementation.

Highly Desired

• Extensive hands-on experience with Flutter for building high-quality native iOS and Android applications. (Note: Any generalist mobile and backend engineer who can pick up Flutter quickly is acceptable).
• Proficiency in one or more backend languages suitable for high-scale applications (e.g. Go Java Python Clojure) and familiarity with cloud-native development (AWS).

Why Join Us

You will be joining a team at the intersection of banking and frontier AI building a product designed to truly change peoples financial lives at a massive scale. This role offers the opportunity to define the engineering backbone of a mission-critical platform and shape the future of digital private banking.

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
• Extended maternity and paternity leaves
• 401K
• Saving Plans - Health Saving Account and Flexible Spending Account
• Work-from-home Allowance
• Relocation Assistance Package if applicable.

Work Model for this Role

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 Experience:

Staff IC