Staff Software Engineer (Crypto, SV) - US - IC7 - 2026

The role

You will build and evolve crypto product capabilities including onchain data, transaction execution, and smart-contract interactions. You will partner with product and business stakeholders to define crypto experiences and integrate with core crypto team systems.

What you will do

• Understand blockchain protocols to turn them into product decisions.
• Build and evolve product-facing capabilities involving onchain data, transaction execution, signing, custody integrations, asset movement, and smart-contract interactions.
• Partner with product and business stakeholders to define crypto experiences.
• Integrate with core crypto team systems.
• Design APIs and abstractions for shipping crypto features.
• Establish standards for reliability, observability, data integrity, and production readiness.
• Lead critical design reviews, major-incident response, and root-cause analysis.
• Mentor senior engineers and raise the bar for technical and product judgment.

Required qualifications

• Track record of Staff-level impact building customer-facing products or platforms.
• Deep experience with distributed systems at scale, including transaction processing, eventual consistency, failure handling, high availability, and production operations.
• Demonstrated ability to translate technical understanding of protocols or infrastructure into product decisions and customer-facing features.
• Production ownership of regulated or high-stakes financial movement, blockchain integrations, or adjacent money-moving infrastructure.
• Experience designing security-sensitive systems using threat modeling, explicit trust boundaries, defensive architecture, and rigorous review processes.
• Comfort partnering with product and business stakeholders as a peer in shaping what gets built.
• Experience leading complex production incidents and improving systems and operating practices afterward.
• Strong influence, communication, and mentorship skills.

Nice to have

• Experience integrating with multiple blockchain networks or protocol families.
• Experience shaping product or business strategy for crypto or digital-asset offerings.
• Familiarity with HSMs, secure enclaves, or hardware-backed key-management systems.
• Experience in regulated fintech, banking, payments, or institutional digital-asset infrastructure.
• Experience reviewing smart-contract security or integrating with DeFi protocols in production.

Before you apply

• Recruitment process may involve the use of artificial intelligence–enabled tools.
• 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.