Mobile Engineer

You will design and implement high-quality native mobile SDKs that let developers integrate embedded wallet functionality into their applications, with a strong focus on API ergonomics, performance, and reliability. You will own SDK features end-to-end, from API design and architecture through implementation, testing, release, versioning, and developer documentation. You will build and maintain secure SDK components for wallet operations, including cryptographic operations, blockchain interactions, and security-sensitive flows. You will define and evolve the SDK architecture for long-term maintainability, backward compatibility, and broad adoption. You will build sample applications and demos, create clear documentation and integration guides, and work with developer relations and support teams to resolve customer integration challenges. You will also raise the bar for quality by establishing best practices around testing, observability, releases, and code health, and contribute to a culture of ownership through hands-on work, code reviews, and knowledge sharing.

Responsibilities

• Design and implement high-quality native mobile SDKs for embedded wallet functionality
• Own SDK features end-to-end from API design through release, versioning, and documentation
• Build and maintain secure SDK components for wallet operations, cryptographic operations, and blockchain interactions
• Define and evolve the SDK architecture for maintainability, backward compatibility, and adoption
• Build sample applications and demos showcasing SDK capabilities
• Create clear SDK documentation and integration guides
• Work with developer relations and support teams to address customer integration challenges
• Establish best practices around testing, observability, releases, and code health
• Lead by example through hands-on work, code reviews, documentation, and knowledge sharing

Requirements

• 5+ years of software engineering experience with deep focus on mobile development and shipping production-grade SDKs
• Demonstrated track record of building and shipping high-quality code
• Strong hands-on experience with iOS (Swift) and/or Android (Kotlin)
• Experience with React Native or other cross-platform frameworks
• Experience building mobile SDKs or shared libraries including API design, versioning, packaging, and maintenance
• Experience with blockchain-enabled mobile systems including wallet flows, signing, and on-chain interactions
• Experience with security-sensitive mobile software such as key management, secure storage, cryptography, or financial products
• Strong grasp of mobile engineering best practices including CI/CD, automated testing, release management, and observability
• B.Sc. in Computer Science / Engineering or equivalent practical experience
• Rust and/or WebAssembly experience is a big advantage
• Experience with advanced mobile security primitives (secure hardware, MPC, low-level crypto) is a big advantage