Nubank is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.
Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.
Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/
About the roleSenior System Engineer - Systems Performance Team The Systems Performance team is part of the Computing Squad (Foundation / Runtime Platforms). You will be part of a team focused on building deep diagnostic tools and performing high-level analysis to reduce latency, infrastructure costs, and increase services efficiency. You will execute performance investigations and identify systemic bottlenecks across one of the largest JVM-based microservice architectures in the world, interacting with everything from the Linux Kernel to cloud-wide orchestration.
You will be responsible for- Performance Investigation: Identify systemic bottlenecks and efficiency opportunities across a massive microservice architecture.
- Innovative Solutions: Develop and deliver technical solutions that address complex challenges with a focus on medium and long-term impact.
- System Optimization: Deep dive into the technical aspects, capabilities, and limitations of our systems to drive continuous improvements.
- Root Cause Analysis: Perform high-level analysis to identify and resolve the root causes of performance issues.
- Proactive Design: Anticipate technical and product issues, making design decisions to prevent future bottlenecks.
- Mentorship & Collaboration: Share knowledge and mentor others, ensuring a high standard of quality and teamwork.
We are looking for a person who has
- Cloud Expertise: Experience and knowledge of cloud platforms (AWS).
- Production Environment: Background working with critical, high-availability services.
- JVM & Internals: Deep interest in understanding service internals, JVM architecture, and performance characteristics.
- OS Fundamentals: Knowledge of operating systems (scheduling, memory management, I/O) is a strong plus.
- Analytical Thinking: Passion for performance tuning, capacity planning, and finding creative ways to improve system efficiency.
- Cultural Alignment: Enthusiasm for ownership, simplicity, and a "veracity-first" approach to problem-solving.
- Total compensation includes base salary, RSUs and benefits. Base salary range: $13,000 - $15,600
- Opportunity of earning equity at Nu
- Medical Insurance
- Dental and Vision Insurance
- Life Insurance and AD&D
- Extended maternity and paternity leaves
- Nucleo - Our learning platform of courses
- NuLanguage - Our language learning program
- NuCare - Our mental health and wellness assistance program
- Extended maternity and paternity leaves
- 401K
- Saving Plans - Health Saving Account and Flexible Spending Account
- Work-from-home Allowance
- Relocation Assistance Package, if applicable.
Nubank operates in a hybrid model, where teams collaborate remotely and periodically come together for about one week of in-person sessions. For Canadian team members, these sessions typically take place in one of our hubs (Brazil, Mexico, Colombia, or the United States) and are communicated well in advance to allow proper planning, with travel support provided to ensure equitable access to these global collaboration opportunities.
Transparency in the use of AIOur 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.
Skills Required
- Experience and knowledge of AWS
- Background working with critical, high-availability services
- Deep interest in service internals, JVM architecture, and performance characteristics
- Knowledge of operating systems fundamentals
- Passion for performance tuning and improving system efficiency
Nubank Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Nubank and has not been reviewed or approved by Nubank.
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Fair & Transparent Compensation — Compensation is considered competitive, especially for tech roles in Brazil/LatAm, with strong top‑of‑band packages reported for senior and product/design positions. Salaries are often described as good, contributing to broadly positive pay sentiment.
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Equity Value & Accessibility — Equity opportunities (typically RSUs) are widely available across postings and regarded as a meaningful component of total compensation. This equity element strengthens overall packages, particularly for technical and product roles.
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Parental & Family Support — Parental leave is extended and gender‑neutral across countries, with additional childcare support and parental counseling in Brazil. These family‑focused policies enhance the perceived value of the benefits package.
Nubank Insights
What We Do
Nu was born in 2013 with the mission to fight complexity to empower people in their daily lives by reinventing financial services. We are one of the world’s largest digital banking platforms, serving more than 70 million customers across Brazil, Mexico, and Colombia. As one of the leading technology companies in the world, Nu leverages proprietary technologies and innovative business practices to create new financial solutions and experiences for individuals and SMEs that are simple, intuitive, convenient, low-cost, empowering, and human. Guided by its mission, Nu is fostering access to financial services across Latin America.
