Lead Software Engineer - Buenos Aires, Argentina (Hybrid)

ABOUT NU

Nu serves more than 140 million customers, guided by a mission to fight complexity and empower people. The company has been leading an industry transformation through innovative products and human-centered services.

Proprietary technology and data at scale power Nu’s digital platform, built to promote financial access, advancement, and transparency. Its business model thrives on customer love and lower costs, feeding a flywheel of growth and profitability.

Visit our Institutional Page https://www.nu.com/2026-en

ABOUT THE ROLE

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 Lead Software Engineer , you will serve as a technical authority across entire business domains, shaping company-wide engineering strategy and driving the architectural evolution of large-scale distributed systems that power our core platform for tens of millions of customers. While we value experience with our tech stack, we are confident that top-tier technical leaders who are eager to learn will thrive here — and we will support your mastery of Clojure as our main backend language.

YOU’LL BE RESPONSIBLE FOR

• Architectural Leadership: Defining long-term technical vision and architecture roadmaps across business area, balancing immediate business goals with long-term system sustainability.

• Strategic Alignment: Partnering with Leaders to translate team business strategy into scalable engineering systems and technical bets.

• Engineering Excellence: Setting and raising the technical bar for the entire engineering organization 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 engineers

• Cross-Organizational Resilience: Establishing team practices for observability, failure domain isolation, disaster recovery, and incident resolution for critical systems

WHAT WE'RE LOOKING FOR SOMEONE WHO HAS

• 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.

• Cross-Team Influence: Demonstrated history of steering large-scale technical initiatives, aligning competing priorities across multiple engineering teams.

• Leadership & Sponsorship: Experience mentoring engineers

• Business Acumen & Communication: Exceptional communication skills with the ability to articulate complex technical trade-offs, risk profiles, and architectural decisions

• Language Proficiency: Advanced English skills (both written and spoken)

WORK SETUP

Location

Buenos Aires, Argentina

Argentina

• Avenida del Libertador General San Martín 1000 – Vicente López

Hybrid

OUR BENEFITS

Our benefits are designed to support your wellbeing, development, and life outside of work. They include:

• Chance of earning equity

• Health Insurance

• Life Insurance

• NuCare

• International business travel insurance

• NuLanguage

• Vacations

• Parental leaves

• Work from home allowance

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.

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 https://building