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Mobile Engineer (Remote)

Worldwide3 days ago

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About Fireblocks

Fireblocks is a digital asset infrastructure platform trusted by major financial institutions including BNY Mellon, BNP Paribas, ANZ Bank, and Revolut. Dynamic, a Fireblocks subsidiary, provides embedded wallet infrastructure for developers building crypto and fintech applications.

About the Team

Dynamic was founded in 2021 to make wallet components foundational to applications. The team builds developer-first SDKs enabling seamless embedded wallet integration. Dynamic powers wallet experiences for companies like Kraken, Magic Eden, and zerohash, having onboarded 50M+ wallets across crypto and fintech applications.

What You’ll Do

Design and implement high-quality native mobile SDKs focused on API ergonomics, performance, and reliability
Own SDK features end-to-end: from API design and architecture through implementation, testing, release, and documentation
Build secure, reliable SDK components for wallet operations including cryptographic operations and blockchain interactions
Define and evolve SDK architecture supporting maintainability, backward compatibility, and adoption
Build sample applications and demos showcasing SDK capabilities
Create comprehensive SDK documentation and integration guides
Work with developer relations and support teams addressing customer integration challenges
Establish best practices around testing, observability, releases, and code health
Contribute to a culture of ownership through hands-on work, code reviews, and knowledge sharing

What You’ll Bring

5+ years software engineering experience with deep focus on mobile development and production-grade SDKs
Demonstrated track record shipping high-quality code with concrete examples
Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); familiarity with React Native and cross-platform frameworks
Experience building mobile SDKs including API design, versioning, packaging, and maintenance
Experience with blockchain-enabled mobile systems including wallet flows, signing, and on-chain interactions
Experience working on security-sensitive mobile software such as key management, secure storage, or financial products
Strong grasp of mobile engineering best practices including CI/CD, automated testing, release management, and observability
Get-things-done mindset with ability to independently own problems and deliver end-to-end solutions
Comfortable making long-term architectural decisions while remaining pragmatic
B.Sc. in Computer Science/Engineering or equivalent practical experience
Remote role with preference for Americas time zone candidates

Big Advantages

Rust and/or WebAssembly (Wasm) experience building cross-platform SDKs for mobile
Experience designing shared core logic across iOS and Android
Experience with advanced mobile security primitives including secure hardware, MPC, and low-level crypto
Prior experience owning or founding a mobile platform or SDK from scratch

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