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.
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Our Engineering team helps Nu create and scale the technology that powers the best financial products in Latin America. We strive for state-of-the-art software development practices, using a variety of technologies and architectures to build resilient, secure, and highly scalable systems.
As a Senior Software Engineer, you will play a key role in shaping the technical direction of multiple teams, driving the design and evolution of large-scale distributed systems that serve millions of customers. While we value experience with our tech stack, we are confident that engineers who are eager to learn will be successful here — and we will teach you Clojure as our main backend language.
You will architect, evolve, and govern:
High-throughput, horizontally scalable microservices written mostly in Clojure, leveraging functional programming paradigms and clean, hexagonal architectures at domain scale.
Organization-wide event-driven architectures and streaming pipelines using Kafka.
Enterprise-grade Continuous Integration and Deployment strategies on AWS.
Multi-region data storage strategies using Datomic, DynamoDB, and advanced persistence patterns.
Systemic observability, reliability, and resilience standards with Prometheus across critical paths.
Global containerized platforms running seamlessly on Kubernetes.
We are a process-light organization that values human interactions. We work in small, independent teams that feel like startups within the company and avoid unnecessary coupling and centralization whenever realistic. We understand that execution is key to success and continuously optimize our processes to remove bottlenecks.
Working with large-scale distributed systems and understanding their broad architecture and trade-offs
Setting technical direction for multiple teams, ensuring alignment with Business Areas and architecture strategies
Architectural Leadership: Defining long-term technical vision and multi-year architecture roadmaps across multiple business areas, balancing immediate business goals with long-term system sustainability.
Strategic Alignment: Partnering with Senior leaders to translate company-wide business strategy into scalable engineering systems and technical bets.
Engineering Excellence: Setting and raising the technical bar for the team through systemic improvements, architectural reviews, and best-practice frameworks.
High-Impact Execution: Hands-on leadership in designing, prototyping, and executing on the most complex, high-risk, or foundational systems in the company.
Mentorship & Talent Growth: Mentoring and sponsoring other engineers building the next generation of technical leaders at Nu.
Cross-Organizational Resilience: Establishing organization-wide practices for observability, failure domain isolation, disaster recovery, and incident resolution for critical systems.
Pragmatic Innovation: Evaluating emergent technologies and paradigms to determine their applicability to Nu's growth, balancing innovation with strict security, performance, and compliance standards.
Extensive Experience: 8+ years of experience engineering complex digital products.
Domain-Scale Expertise: Mastery of distributed systems design, microservices, cloud-native architectures, and failure-mode analysis in systems handling high concurrency and millions of active users.
Multi-Paradigm Capability: Deep mastery of functional or object-oriented programming paradigms, with an aptitude for learning new technologies and advocating for clean code practices.
Leadership & Sponsorship: Experience mentoring engineers and shaping engineering culture, hiring criteria, and RFC/architecture review processes.
Business Acumen & Communication: Exceptional communication skills with the ability to articulate complex technical trade-offs, risk profiles, and architectural decisions to leaders
Advanced English skills
Buenos Aires, Argentina
Argentina · Avenida del Libertador General San Martín 1000 – Vicente López
Our benefits are designed to support your wellbeing, development, and life outside of work. They include:
Even if you feel you don't meet every qualification, we encourage you to apply — your unique skills and experiences may be just what we're looking for, and we're excited to learn more about what you can bring to our team.
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.nubank.com/nu-hybrid-work-model/.
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.
