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Nubank · 3 days ago

Senior-Staff / Principal Full-Stack Engineer - AI Private Banker

Palo Alto, CA

Full-time

Hybrid

Senior Level, Lead/Staff

Nubank is one of the largest digital financial platforms in the world, with a mission to fight complexity and empower people. They are seeking a highly specialized Full-Stack Engineer to lead the vision and technical execution of their AI-enabled Private Banking platform, focusing on system architecture, full-stack implementation, and technical leadership.

BankingCredit CardsFinancial ServicesFinTech

Comp. & Benefits

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

Qualification

Tech Lead experienceFull-stack implementationDistributed system architectureFlutter developmentBackend languages proficiencyAI system integrationTechnical ownershipMentoring engineersCode reviews

Required

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

Preferred

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)