About Us
Nu 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.
About the Team
At Nubank we heavily rely on data, machine learning and other quantitative models & techniques to drive our strategy and provide the best experience and products to our customers.
The position holder will be part of the Model Risk team, within the Risk Management structure at Nubank.
The Model Risk team is the second line of defense for our models. Our mission is to ensure Nubank relies on world-class solutions that will lead to optimal and sustainable decisions. We act by providing independent review & challenge to models, staying tuned to cutting edge techniques, along with business and customers needs. We also work to identify and control risks related to our models, as well as in the definition and implementation of feedback loops to constantly improve them.
About the Role
Provide effective challenges, identify risks, and enhancement opportunities, and engage with other Data Scientists and Business Analysts to strengthen our decision-making tools;
Discuss and report model risk status and independent opinions on models with different stakeholders, including senior managers and regulators;
Contribute to the consolidation of and improve Nubank's Model Risk Management and Model Review frameworks with autonomy and creativity;
Be exposed to different types of decisions and processes (e.g. credit, fraud, operations and in different countries);
Conduct independent reviews of quantitative models based on statistical, machine learning and AI techniques, with a stronger focus on credit models;
Develop playbooks and toolkits (Python, Scala, SQL, etc.) to optimize model reviews, ongoing models monitoring, and assess the impact of models in decisions;
Ensure the team maintains a high level of technical excellence.
Qualifications
* Great communication skills: clear, concise and structured.
* Problem‑solving skills: strong analytical and problem‑solving abilities are essential for identifying risk factors and implementing effective risk management strategies.
* Experience developing or validating machine learning models used to leverage important decision‑making processes or to solve relevant academic problems.
* Interest in reviewing complex machine learning and other types of models to identify risks and propose enhancements.
* Ability to work autonomously and demonstrate a sense of prioritization.
* Data Science skills, strong knowledge of machine learning tools and techniques.
* Strong programming skills, desirable previous experience with Python, SQL, GitHub.
* Stakeholder management and influencing skills across levels.
* Organized and detail‑oriented, without losing track of the big picture.
* Advanced English skills.
* Previous experience in credit risk management and/or other risk management frameworks would be a plus.
* Master’s degree or relevant undergraduate scientific project would be a plus.
* Previous knowledge of expected loss provisions modeling would be a plus.
Benefits
* Chance of earning equity at Nubank.
* Food/ Meal Card (Vale‑Refeição and/or Vale Alimentação).
* Public Transportation Commuting Benefit (Vale‑Transporte).
* NuCare – Psychological, Financial and Legal Assistance Program.
* Life Insurance.
* Medical Plan.
* Dental Plan.
* NuLanguage – Language Course Program.
* Nucleo – Our learning platform of courses.
* Extended Parental Leave.
* Daycare Allowance.
* Parental Consultancy.
* Work‑from‑home Allowance.
* Gym Partnerships.
* 30 days of paid vacation.
* Relocation Assistance Package, if applicable.
Work Model for this Role
Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration.
Seniority level
Entry level
Employment type
Full‑time
Job function
Finance and Sales
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