Lead Software Engineer - Mexico City

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

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 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 build and evolve:

Horizontally scalable microservices written mostly in Clojure , using Finagle and leveraging functional programming techniques and hexagonal architecture

High-throughput jobs and inter-service communication using Kafka

Continuous Integration and Deployment pipelines on AWS

Data storage solutions using Datomic and DynamoDB

Monitoring and observability with Prometheus

Services running as much as possible in 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.

You'll be responsible for

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

Driving pragmatic innovation while ensuring resilient, secure, and flexible solutions that scale across products and geographies

Mentoring engineers across teams and helping maintain a high technical bar organization-wide

Writing, testing, instrumenting, documenting, and maintaining high-quality code

Pairing and participating in code reviews to support the growth of others in and around your teams

Collaborating closely with Product, Design, and Engineering leaders to build new end-to-end experiences

Ensuring comprehensive observability, performance monitoring, and robust error handling across team services

Participating in on-call rotations for your team and responding to incidents as necessary