Mobile Engineer

About this role

Join Dynamic (part of Fireblocks) to build native mobile SDKs that enable developers to integrate embedded wallet functionality into crypto and fintech applications. You'll own SDK features end-to-end—from architecture and implementation through documentation and customer support—while maintaining institutional-grade security and exceptional developer experience.

What you'll do

• Design and implement high-quality native mobile SDKs with focus on API design, performance, and reliability
• Own SDK features end-to-end from architecture through release, versioning, and documentation
• Build and maintain secure components for wallet operations, cryptographic functions, and blockchain interactions
• Define and evolve SDK architecture to support maintainability, backward compatibility, and customer adoption
• Create sample applications, demos, and comprehensive integration guides for developers
• Collaborate with developer relations and support teams on customer integration challenges

What they're looking for

• Mobile development (iOS/Swift and/or Android/Kotlin)
• Mobile SDK design and development
• Blockchain and cryptocurrency systems
• Security-sensitive software (key management, cryptography, financial systems)
• API design and versioning strategies
• Testing, CI/CD, and release management
• Cross-platform frameworks (React Native experience beneficial)
• Code review and technical documentation