Mobile Engineer

Fireblocks
United States
Workplace: RemoteFull timeUSD 177,000 - 230,000 annuallyFunction: Data Analytics & Business IntelligenceExperience: 5+ yearsEducation: bachelorsSkills: ["Ownership","Independent problem solving","Customer focus","Hands-on execution","Code review"]

Design and build secure, production-grade native mobile SDKs that let developers embed wallet functionality into their applications. Own SDK features end-to-end—from API design and architecture through implementation, testing, release, versioning, and documentation—while developing cryptographic and blockchain interaction components. Collaborate with developer relations to resolve integration challenges and set best practices for quality, observability, and release health.

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FursaFursa
Fireblocks
Fireblocks
7 months ago

Mobile Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live

Job Summary

Design and build secure, production-grade native mobile SDKs that let developers embed wallet functionality into their applications. Own SDK features end-to-end—from API design and architecture through implementation, testing, release, versioning, and documentation—while developing cryptographic and blockchain interaction components. Collaborate with developer relations to resolve integration challenges and set best practices for quality, observability, and release health.
Location: United States
Workplace: Remote
Employment Type: Full time
Job Function: Data Analytics & Business Intelligence
Seniority: Mid level

Key Responsibilities

  • •Design and implement high-quality native mobile SDKs for embedded wallet functionality, focusing on API ergonomics, performance, and reliability.
  • •Own SDK features end-to-end: API design and architecture, implementation and testing, release, versioning, and developer documentation.
  • •Build and maintain secure, reliable SDK components for wallet operations, including cryptographic operations and blockchain interactions.
  • •Define and evolve SDK architecture for long-term maintainability, backward compatibility, and adoption across customer applications.
  • •Create integration references via sample apps and demos, and collaborate with developer relations/support to address integration challenges.

Pay and Benefits

Salary: USD 177,000 - 230,000 annually
Equity and Bonus:Equity

Key Requirements

  • •5+ years of software engineering experience with a deep focus on mobile development and shipping production-grade SDKs.
  • •Strong hands-on iOS (Swift) and/or Android (Kotlin) experience, plus familiarity with React Native or other cross-platform frameworks.
  • •Experience building mobile SDKs or shared libraries, including API design, versioning, packaging, and long-term maintenance across platforms.
  • •Hands-on 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.
Experience:5+ yearsBlockchainCryptocurrencyFintechDeveloper tools
Education:Bachelor's in Computer Science / Engineering
Skills:OwnershipIndependent problem solvingCustomer focusHands-on executionCode review
Tech Stack:IOSSwiftAndroidKotlinReact NativeRustWebAssemblyWasmAPI designCI/CDAutomated testingRelease managementObservabilityCryptographySecure storageKey managementMPCBlockchainOn-chain interactions

Company Brief

Fireblocks
Provides institutional-grade digital asset custody, transfer, and settlement infrastructure enabling banks, exchanges, and enterprises to securely issue, store, and move cryptocurrencies and tokenized assets.
Industry: Fintech Infrastructure
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: New York, United States
Founded: 2018
WebsiteLinkedIn