Full-Time

Lead Systems Engineer

Kafka

Updated on 8/1/2026

Nubank

Nubank

10,001+ employees

Digital bank offering credit cards

Compensation Overview

$210k - $252k/yr

+ RSUs

Toronto, ON, Canada

Hybrid

Hybrid work in Toronto, Ontario.

Category
Software Engineering (1)
Required Skills
Kubernetes
Distributed Systems
Apache Kafka
Computer Networking
AWS
Observability

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Requirements
  • Strong software engineering fundamentals and experience working with distributed systems in production.
  • Solid experience with Kubernetes, networking, and Amazon Web Services in large-scale or business-critical environments.
  • Experience operating infrastructure-heavy platforms with high reliability and availability requirements.
  • Ability to troubleshoot complex production issues across application, infrastructure, and network layers.
  • Experience improving observability, automation, and operational tooling.
  • Good understanding of scalability, resilience, performance, and failure isolation patterns.
  • Ability to work autonomously on ambiguous technical problems and drive them to execution.
  • Strong collaboration skills and ability to work across team boundaries.
Responsibilities
  • Operate and improve large-scale messaging and platform infrastructure based on Kafka used by critical systems across Nubank.
  • Contribute to the reliability, scalability, and performance of asynchronous communication platforms.
  • Help design and implement solutions for high-throughput, low-latency, and fault-tolerant systems.
  • Improve observability, automation, and operational excellence across the platform.
  • Support incident analysis, troubleshooting, and root cause remediation in production environments.
  • Optimize infrastructure usage and help drive efficiency and cost awareness across Amazon Web Services-based environments.
  • Work on platform capabilities that enable safe growth in message volume, topic count, and cluster footprint.
  • Partner with other engineers and teams to evolve platform standards, tooling, and best practices.
  • Contribute to architectural discussions involving messaging, traffic patterns, service communication, and platform reliability.
Desired Qualifications
  • Experience with Apache Kafka or other messaging and streaming technologies.
  • Experience with platform engineering, site reliability engineering, or infrastructure-focused backend engineering.
  • Familiarity with multi-account Amazon Web Services environments and large-scale cloud operations.
  • Experience with high-throughput event-driven architectures.
  • Experience balancing reliability, performance, and cost in production systems.

Nubank is a digital bank in Latin America that offers financial services mainly through its mobile app, including credit cards, personal loans, and digital payment solutions for individuals and small businesses. Customers access and manage products through the app, with loans earning interest and merchants paying transaction fees; the bank aims to minimize or eliminate fees and provide a simple, transparent user experience. Nubank’s products work by delivering credit and payment services online, with revenue coming from interest on loans, card interchange fees, and premium services. The company differentiates itself through a strong focus on a no-fee, user-friendly digital experience, scale across Brazil, Mexico, and Colombia, and technology-driven operations that emphasize accessibility and transparency. Its goal is to simplify banking, expand access to financial services, and become a leading, trusted financial platform in Latin America.

Company Size

10,001+

Company Stage

IPO

Headquarters

São Paulo, Brazil

Founded

2013

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Benefits

Company Equity

Meal Benefits

Commuter Benefits

Wellness Program

Mental Health Support

Legal Services

Life Insurance

Health Insurance

Dental Insurance

Training Programs

Parental Leave

Childcare Support

Family Planning Benefits

Home Office Stipend

Gym Membership

Paid Vacation

Relocation Assistance

Hybrid Work Options

401(k) Retirement Plan

Health Savings Account/Flexible Spending Account

Growth & Insights and Company News

Headcount

6 month growth

-2%

1 year growth

-3%

2 year growth

-3%
Peq42
Jul 24th, 2026
Brazilian fintech, nubank expands on U.S. and Mexico.

Brazilian fintech, nubank expands on U.S. and Mexico. Nubank, the Brazilian fintech that redefined banking for millions in Latin America, is entering one of its most ambitious chapters yet. With Mexico set to become its first full-fledged international bank operation on August 6, a U.S. national bank charter advancing through regulators, and a growing footprint across South America, the company is attempting what few foreign financial institutions have dared: conquering America's fortress-like banking market while consolidating dominance across the region. Mexico: from fintech to full bank. On August 6, 2026, Nubank México will officially transition into an institución de banca múltiple - a full banking license - following authorization from the country's banking regulator (CNBV) on July 9. This milestone makes Nu the largest digital bank in Mexico, serving more than 15 million clients, roughly 15% of the nation's adult population. The transition follows a planned technical migration on August 5, during which certain services such as SPEI transfers and app-based balance consultations will be temporarily unavailable between 17:30 and 22:00 local time. Nu's debit and credit cards will continue functioning throughout the process, and customer funds will remain secure. "Este marco es un punto de partida para continuarmos acompañando a nuestros clientes de cerca," said Armando Herrera, CEO of Nu México. "Operar como banco nos da las herramientas para evolucionar junto con ellos, manteniendo la misma esencia, simplicidad y transparencia de siempre, ahora con más posibilidades. Seguimos comprometidos con nuestro foco en consolidarnos como el banco más amado de México." Since arriving in Mexico in 2019, Nubank clients have collectively saved approximately $2.694 billion in fees, annual charges, and transfer costs, according to company data. The cultural impact is equally striking: 60% of Nu's Mexican customers say they now use less cash, and 86% rate the company's impact on their financial lives as "high," citing greater stability and control over their finances. The U.S. Gambit: learning from fintech failures. The American consumer-banking market has proven a graveyard for foreign digital upstarts. Germany's N26 exited in 2021 after just two years. Britain's Monzo shuttered its U.S. operations earlier this year. Even homegrown digital challenger Chime holds less than 5% market share after a decade and billions in investment. Undeterred, Nubank secured conditional approval from the Office of the Comptroller of the Currency in late January 2026 - a landmark green light for a non-U.S. fintech. The company filed its application in September 2025, and regulatory timelines require Nu to fully capitalize the new institution within 12 months and commence operations within 18 months, effectively targeting a 2027 launch. Unlike many predecessors, Nubank is approaching the U.S. market with deep pockets and proven discipline. The company plans to offer deposit accounts, credit cards, lending products, and digital asset custody once the charter is fully approved. Its strategy blends the low-fee, user-friendly model that upended Brazil's "big five" banks with a cautious, regulation-first approach - a stark contrast to the aggressive, capital-burning tactics that tripped up rivals. Geographic Reference A regional powerhouse. While the U.S. looms large, Nubank's regional engine is firing on all cylinders. The company now serves 135 million customers across Brazil (115 million), Mexico (15 million), and Colombia (nearly 5 million), with physical offices in São Paulo, Mexico City, Bogotá, and Buenos Aires. Beyond its core markets, Nubank has rolled out "International PIX" - its instant payment solution - to Chile and Argentina, extending the Brazilian payment innovation that recently hit 1 billion monthly transactions across the platform. The company also offers the Ultravioleta global account, allowing customers to manage multiple currencies within the same app, a feature tailored for Latin America's increasingly mobile population. Financial muscle to match the ambition. Nubank's expansion is backed by robust financials. In the first quarter of 2026, gross profit reached $1.88 billion (up 27% year-over-year), while net income hit $871 million (up 41% YoY). Fourth-quarter 2025 results showed revenue of $4.9 billion (up 45% YoY) and net income of $895 million (up 50% YoY), with an annualized return on equity of 33%. Despite a recent market correction - shares have fallen roughly 23% in 2026, valuing the company at approximately $63 billion - Nubank remains one of the most valuable financial institutions to emerge from the Global South. The road ahead. Nubank's strategy hinges on a delicate balance: leveraging its Latin American scale to fund a disciplined U.S. entry, while continuing to deepen relationships in markets where it already holds sway. As Armando Herrera's message from Mexico City suggests, the company's ambition isn't just to build another bank - but to become the most beloved bank across two continents. If successful, Nubank could accomplish what neither European nor British fintechs managed: cracking the U.S. market not through brute-force marketing, but through a proven formula of low-cost digital operations, relentless customer focus, and regulatory prudence. The world will be watching as August 6 dawns in Mexico - and as 2027 approaches in Washington.