Staff Software Engineer - Database Infrastructure

Nubank•Miami, FL

15h•$192,000 - $345,000•Hybrid

About The Position

Nu is a leading digital financial platform with over 127 million customers across Brazil, Mexico, and Colombia. The company aims to simplify financial services through technology and data intelligence. This role is within the Foundation organization, specifically in the Storage & Databases area, which is responsible for providing the core database infrastructure for Nubank, including canonical databases like DynamoDB and Datomic, common libraries, and regulatory data management. The Staff Software Engineer will be a senior technical leader focused on Datomic, provisioning, and caching, operating across the organization. The role involves designing and evolving scalable database and storage platforms to support millions of customers and international expansion, while adhering to strict regulatory and availability requirements. This position is ideal for individuals passionate about database theory, infrastructure, and enabling other product teams.

Requirements

Deep experience with databases: strong grounding in database theory and database infrastructure (design, operations, performance, reliability).
Hands-on experience with large-scale data systems, having supported services with millions of users and/or very high data and traffic volumes.
Strong familiarity with at least some of the technologies in our ecosystem, such as Kubernetes, Clojure and Datomic, or comparable stacks, and the ability to adapt and learn our specific tools.
Backgrounds such as Database Administrator, Systems Engineer, Infrastructure Engineer, DevOps Engineer or Software Engineer with a clear emphasis on databases and distributed systems.
Proven ability to work in horizontal/platform teams, building and operating shared infrastructure and libraries used by many product teams.
Excellent communication skills and emotional resilience: comfortable interacting with many teams, often in high-stress situations like production incidents, and able to keep a constructive, solutions-oriented posture.
High learning agility and patience to navigate a very senior, deep technical environment, including working with peers at Staff and Principal level across Foundation.

Nice To Haves

Experience in financial services or other regulated industries (not mandatory).
Prior responsibility for multi-region, high-availability database architectures.

Responsibilities

Designing and evolving Nubank’s storage and database platforms, with a primary focus on Datomic, provisioning and caching, ensuring they serve as reliable foundations for all product teams.
Owning database infrastructure at scale, ensuring performance, availability and resiliency for systems that serve millions of customers and very high data volumes.
Enabling new country launches from a storage and data perspective: guaranteeing that database architectures, configurations and operations support new regulatory and scalability requirements as Nubank enters new markets.
Ensuring regulatory and data-safety compliance, including backups, multi-region availability strategies and protection of customer data in line with central bank and local regulations.
Working horizontally across the engineering org, collaborating with many different teams that consume storage and database services, and shaping shared libraries, patterns and best practices they rely on.
Participating in and leading incident response for storage and database-related production issues, helping teams debug complex failures under pressure and designing long-term fixes.
Multiplying expertise in a very senior environment, mentoring other engineers and helping them navigate a deep, complex technical context over time.