Mobile Engineer

🕒 February 6

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Fireblocks

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2018

₿ Crypto

💳 Fintech

🔐 Security

💰 $550M Series E on 2021-12

Crypto • Fintech • Security

Fireblocks is an enterprise-grade platform offering secure infrastructure for moving, storing, and issuing digital assets. It is designed for exchanges, custodians, banks, trading desks, and hedge funds to securely scale their digital asset operations using patented SGX & MPC technology. Fireblocks provides a solution for treasury management, wallets as a service, tokenization, digital asset payments, and compliance. Additionally, it supports DeFi automation and integrates with Web3 initiatives, facilitating efficient and secure operations for institutional clients.

📋 Description

• Design and implement high-quality native mobile SDKs that enable developers to integrate embedded wallet functionality into their applications, with a strong focus on API ergonomics, performance, and reliability. • Own SDK features end-to-end: from API design and architecture, through implementation and testing, to release, versioning, and developer documentation. • Build and maintain secure, reliable SDK components for wallet operations, including cryptographic operations, blockchain interactions, and security-sensitive flows. • Define and evolve the SDK architecture to support long-term maintainability, backward compatibility, and adoption across diverse customer applications. • Build sample applications and demos that showcase SDK capabilities and serve as integration references for customers. • Create clear, comprehensive SDK documentation and integration guides. • Work with developer relations and support teams to address customer integration challenges. • Raise the bar for quality and operational excellence by establishing best practices around testing, observability, releases, and code health. • Contribute to a culture of ownership and execution, leading 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, with work you can point to and discuss in depth. • Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); experience with React Native or other cross-platform frameworks, and familiarity with all. • Experience building mobile SDKs or shared libraries, including API design, versioning, packaging, and long-term maintenance across platforms. • 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, cryptography, or financial products. • Strong grasp of mobile engineering best practices, including CI/CD, automated testing, release management, and observability. • A get-things-done mindset with the ability to independently own problems and deliver end-to-end solutions. • Comfortable making long-term architectural decisions while remaining pragmatic and adaptable. • B.Sc. in Computer Science / Engineering or equivalent practical experience. • Remote role in a distributed team; preference for candidates in the Americas time zone.

🏖️ Benefits

• Health insurance • Remote work options • Professional development opportunities