Lead Content Designer, AI Core

About Nubank

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. Visit our institutional page https://international.nubank.com.br/careers/

To help us grow and fight complexity we are looking for an experienced Lead Content Designer, AI Core to join our Design team.

About The Role

The private banker speaks with millions of customers — literally. Every word, tone, and nuance defines whether people feel helped, seen, and trust this relationship. As Lead Content Designer, you’ll shape the AI’s voice, personality, and communication framework — turning intelligence into clarity and care. You’ll co-create the product’s linguistic design alongside product, design, and data science partners, ensuring the AI communicates responsibly, consistently, and delightfully.

Once Here, You Will

• Build content frameworks that scale — tone models, message libraries, content systems, safety guidelines, content structure.
• Define and evolve the voice and tone of Nubank’s AI — warm, intelligent, empathetic, and trustworthy. Build consistent prompts and governance across different use cases.
• Collaborate with prompt engineers, data scientists, and UX designers to train and evaluate the AI’s language outputs.
• Partner with the Sr Design Manager and Content peers to create content standards and rituals for review, iteration, and quality.

What do you need to be part of the team?

• Experience in product content design, UX writing, or conversational design, ideally in AI or fintech.
• Understand how data and AI models work and can translate that complexity into tangible prompts and guidelines.
• Comfortable designing at system level — not just writing copy, but shaping frameworks and training data guidance.
• Craft clear, precise language while adapting tone to different emotional or contextual states.
• Think inclusively and globally — designing language for scale across cultures and contexts.

Desirable Tool Management

• Figma, sketch or alike prototyping platform knowledge.
• Notion or other types of dynamic content documentation.
• Typeform or alike written research experience.
• Miro or similar white boarding tools for workshopping.

Benefits

• 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
• 401K
• Saving Plans - Health Saving Account and Flexible Spending Account
• Work-from-home Allowance
• 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. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

Key skills/competency

• Content Design
• UX Writing
• Conversational Design
• AI/ML
• Fintech
• Prompt Engineering
• Content Strategy
• Language Systems
• User Experience
• Cross-functional Collaboration
• Figma