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Microservices

About the job

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 As Nu scales its footprint globally, seamless international money movement is a cornerstone of our growth. We are looking for a Senior Staff Software Engineer to own the overarching architecture for Nu’s global Remittance and Cross-Border Payment Platforms. In this role, you will sit at the strategic intersection of high-scale distributed backend systems, foreign exchange (FX) engines, international payment rails, and global compliance platforms. You won't just maintain existing pipelines, you will architect the foundation that enables instant, low-cost, multi-currency money movement for millions of users across borders.Your mission: maintain and grow a resilient, multi-country remittance engine that abstracts away complex global payment rails and regulatory requirements into simple, reliable platform capabilities.

What You Will Own & Build

- Core Remittance Platform Architecture: Design and evolve the long-term technical vision for multi-currency money movement, FX rate locking, payout routing, and ledgering across international corridors.

- Global Rail Integration Strategy: Architect plug-and-play integrations with global payout partners, banking networks, and local clearing rails (e.g., PIX, SPEI, FedNow, SWIFT) with ultra-high reliability and low latencies.

- Resilient Ledgering & FX Management: Build transaction execution engines that guarantee exact-once delivery, deterministic ledger balancing, real-time liquidity management, and auditability under massive concurrency.

- Compliance & Risk System Abstractions: Partner with AML, KYC, Sanctions Screening, and Regulatory Engineering teams to embed real-time screening seamlessly into payment paths without degrading user experience or throughput.

- Technical RFC Leadership: Drive cross-organizational consensus on high-impact architectural decisions through detailed RFCs, design reviews, and technical documentation.

- Engineering Mentorship: Multiply organizational velocity by mentoring senior engineers across payments squads in distributed systems principles, resilience engineering, and payment domain knowledge.

What We Are Looking For

- Tenure in Backend Software Engineering: Proven track record of designing, operating, and scaling highly available, mission-critical backend distributed platforms in demanding environments (e.g., fintech, payments, banking, or cloud platform infrastructure).

- Deep Payments Domain Expertise: Hands-on experience building remittance systems, cross-border payments, multi-currency ledger engines, FX execution services, or integrations with international payment clearing systems.

- Distributed Systems Mastery: High fluency with event-driven architectures, transactional consistency, distributed sagas/orchestration, double-entry accounting engines, and high-concurrency microservices.

- Platform Mindset: Experience designing clean, developer-friendly APIs, SDKs, and platform boundaries that enable product teams to quickly launch consumer-facing remittance journeys.

- Cross-Functional Influence: Proven ability to act as a horizontal technical leader, writing comprehensive design documents (RFCs), guiding executive leadership on technical trade-offs, and building consensus across geographically distributed teams.

- Language & Location: Fluent English is required for international engineering collaboration. Portuguese or Spanish is a plus. Roles are open in Brazil (hybrid model) or key US hubs.

Why Join Us?

You will join a world-class engineering organization that values technical depth, architectural clarity, and high execution speed. You will own the technology powering one of the most strategic growth vectors at Nu, building cross-border payment infrastructure that unlocks financial freedom for tens of millions of people.

WORK SETUP

Work model

[Hybrid / On-Site]

Office requirement

2 days per week at the office.

OUR BENEFITS

- Chance of earning equity at Nu

- NuCare – Psychological, Financial and Legal Assistance Program

- Life Insurance

- Medical Plan

- NuLanguage – Language Course Program

- Nucleo - Our learning platform of courses

- Extended Parental Leave

- Relocation Assistance Package, if applicable

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 https://script.google.com/a/macros/nubank.com.br/s/AKfycbwvrewE58oGSbRWIVv8CyCWN68GLxpPVsfYYXv-ZHg94QFsTJmi82rF1x0yt-OTs2W0DQ/exec