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Define and execute the Money Boxes backend architecture, build and maintain the core ledger and transaction engines, design liquidity and asset routing infrastructure, and create multi‑country/multi‑currency abstractions, while leading RFCs and mentoring engineers.
A senior‑level engineer (Staff/Senior Staff) with proven experience designing and scaling mission‑critical distributed systems in fintech or banking, strong expertise in event‑driven architectures, double‑entry ledgering, DDD, and API/platform development; fluent English, Portuguese or Spanish a plus.
Money Boxes powers a strategic product that lets millions of users save, invest and earn yield across Latin America, so the platform’s reliability and scalability directly impact Nu’s mission to fight complexity and empower financial security for over 140 million customers.
Engineers who thrive on building high‑throughput, fault‑tolerant platforms, enjoy shaping technical vision across multiple teams, and have deep domain knowledge of financial ledgering and investment systems.
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.
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About the role
Money Boxes ("Caixinhas") is one of Nubank’s most strategic product innovations, transforming how millions of customers organize, save, and grow their money across Latin America. As Nubank expands into new geographies and financial verticals, we are looking for an exceptional Senior Staff Software Engineer to serve as the chief technical authority for our Money Boxes core platform.
In this role, you will operate at the intersection of high-concurrency distributed systems, transactional ledgering, investment asset allocation, and liquidity orchestration. You won't just maintain existing product flows—you will architect the foundational engines that enable millions of users to dynamically deposit, segment, and yield return on their savings instantly, securely, and at massive scale.
Your Mission: scale an extensible, multi-tenant Money Boxes platform that abstracts complex investment assets, yield generation mechanisms, and regulatory ledgering into simple, bulletproof platform capabilities across multiple international markets.
What You Will Own & Build
What We Are Looking For
Why Join Us?
You will join a high-bar engineering culture that values architectural clarity, technical depth, and rapid execution speed. You will directly own the systems that help over 140 million people build financial security and grow their wealth—shaping the future of personal finance technology across global markets.
Work Setup
Work model
[Hybrid / On-Site]
Office requirement
2 days per week at the office.
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.
To maintain a consistent and fair process for every candidate, Nu does not provide individualized technical feedback. See how our policy works here
Nubank
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