United States of America Remote (Country) Employment $140,000 - $180,000

Spruce is hiring a Senior Mobile Engineer - Remote

About the Role

Lead the development of secure, mobile-first identity platforms for state governments and public institutions. In this role, you'll architect and ship production-grade applications that prioritize privacy, compliance, and accessibility, working across native and cross-platform environments including Flutter, React Native, iOS, and Android.

What You'll Do

  • Design and implement mobile applications that meet stringent public-sector security and regulatory standards
  • Collaborate closely with delivery teams, backend engineers, and UX designers to ensure seamless end-to-end deployments
  • Translate policy and customer requirements into robust technical architectures across mobile and backend systems
  • Serve as a technical advisor to government partners, guiding them through identity standards, mobile security, and platform best practices
  • Build and integrate privacy-preserving features using cryptographic libraries, secure storage, and biometric authentication
  • Contribute to shared Rust-based libraries used across mobile, backend, and browser environments
  • Support real-world deployment scenarios, including troubleshooting and operational assistance
  • Adapt across technology stacks as needed, contributing beyond mobile when project demands require
  • Engage directly with partners during pilots, launches, and ongoing implementations

What We're Looking For

  • At least 5 years of experience building and shipping production mobile applications
  • Strong proficiency in one or more mobile frameworks such as Flutter or React Native, with familiarity in native iOS and Android development
  • Proven ability to lead mobile architecture and deliver secure, scalable systems
  • Experience integrating mobile apps with backend services, APIs, and identity platforms
  • Solid grasp of mobile security practices, including key management, secure storage, and authentication flows
  • Strong communication skills and direct customer engagement experience, especially in delivery or consulting contexts
  • A flexible, problem-solving mindset with willingness to work outside your core stack
  • US-based and comfortable working directly with government stakeholders

Nice to Have

  • Hands-on experience with Kotlin, Swift, Dart, TypeScript, or Rust in production environments
  • Background in digital identity, verifiable credentials, DIDs, or authentication systems
  • Experience with cryptographic systems, data privacy, or secure mobile architectures
  • Familiarity with secure platform features like iOS Keychain, Android Keystore, biometrics, and secure enclaves
  • Prior work on public-sector or government software initiatives
  • Knowledge of Rust and interoperability with mobile via FFI or shared modules
  • Experience implementing accessibility standards such as WCAG in mobile apps
  • Exposure to mobile CI/CD pipelines, app store deployments, and release management

Technology Environment

Flutter, React Native, iOS, Android, Rust, Dart, TypeScript, Kotlin, Swift, Objective-C, Keychain (iOS), Keystore (Android), Biometrics, Secure Enclaves, FFI, Verifiable Credentials, DIDs, Authentication Systems, Cryptographic Libraries, Backend APIs

Work Environment

This is a fully remote position for candidates based in the United States. You’ll work in a collaborative, mission-driven environment focused on secure, interoperable public services and customer success.

Required Skills
FlutterReact NativeiOSAndroidDartKotlinSwiftTypeScriptRustObjective-Cmobile architectureAPI integrationproduction mobile applicationssecure systemscross-platform development FlutterReact NativeiOSAndroidDartKotlinSwiftTypeScriptRustObjective-Cmobile architectureAPI integrationproduction mobile applicationssecure systemscross-platform development
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About company
Spruce
SpruceID builds privacy-preserving, standards-based digital identity and credentialing solutions that give individuals control of their information while enabling governments and enterprises to deliver secure, interoperable services. The company partners with public-sector organizations to modernize how identity is issued, verified, and used.
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Job Details
Department Engineering
Category mobile
Posted a month ago