Lead Software Engineer (Crypto, SV) - US - IC6 - 2026

The role

You will design and operate data pipelines and integration layers to provide crypto data for conversational AI experiences. You will work at the intersection of crypto products, customer data, and applied AI integration.

What you will do

• Integrate with blockchain protocols and core crypto systems to source portfolio, transaction, and market data.
• Design and build data pipelines that transform raw crypto and customer data into structured context for AI-driven experiences.
• Partner with the AI platform team to define data contracts, tool interfaces, and context schemas.
• Model and reason about customer profiles to drive personalized insights.
• Ensure data freshness, consistency, and correctness for customer-facing conversational surfaces.
• Build safeguards against unsafe or misleading outputs.
• Operate pipelines and integrations at scale with reliability.
• Collaborate with product, compliance, and the AI platform team to ship features.

Required qualifications

• Experience building data pipelines and integration layers that connect backend/product data to AI-driven systems.
• Solid understanding of blockchain concepts and crypto products.
• Experience working with customer data and behavior to drive personalization.
• Strong distributed-systems fundamentals.
• Comfort working as a cross-team interface.
• Awareness of the risks of exposing financial data to LLM-driven surfaces.

Nice to have

• Experience with specific blockchain protocols (Ethereum, Bitcoin, Solana) and their data/integration patterns.
• Prior work integrating with RAG systems or agent tooling in a regulated or high-stakes domain.
• Experience in fintech, payments, or financial services with personalization or recommendation systems.
• Familiarity with vector databases, embeddings, or context-retrieval infrastructure.
• Experience partnering with conversational AI or LLM platform teams as a data provider.

Before you apply

• Recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis.
• Nu does not provide individualized technical feedback.

About the company

Nu serves more than 140 million customers with a mission to fight complexity and empower people. The company uses proprietary technology and data at scale to power its digital platform.