Senior Systems Engineer - Performance Engineer
Nu Holdings Ltd. - Canada, Toronto
Posted Feb 3, 2026
Benefits
- Parental leave
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- Non-birth-parent leave
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- Family-building benefits
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- Fertility benefits: Not verified
- Adoption assistance: Not verified
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- Mental health support
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Schedule
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Where they hire
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About this role
Senior Systems Engineer - Performance Engineer Canada, Toronto About Us 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 role Senior 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,
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