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Mobile Engineer, Dart SDK & Eoonia Wallet

Remote - EU

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Empoorio was founded on the belief that people should own their digital identity — cryptographically secured, portable across services, and anchored on EmpoorioChain without platform lock-in. Today we are building KryptoOS, the sovereign identity layer for wallets, cloud, and enterprise integrators worldwide.

Eoonia Wallet is the holder experience for sovereign credentials — key management, selective disclosure, and OIDC4VP presentations to relying parties. You will ship credential holder experiences in Eoonia Wallet used by end users across the ecosystem. If you thrive in high-ownership environments where correctness and privacy matter, this role will be a strong next step in your career.

Responsibilities

  • Implement holder flows in Dart/Flutter — credential storage, presentation, and recovery
  • Integrate did:emp keys with platform secure enclaves and biometric unlock patterns
  • Collaborate with protocol engineers on OIDC4VP and selective disclosure UX
  • Ship wallet releases with accessibility, localization, and offline-first considerations
  • Analyze crash reports and latency metrics for credential operations in production

Basic qualifications

  • Bachelor's degree in computer science, engineering, mathematics, or equivalent practical experience
  • 2+ years of professional experience in software engineering, security, or distributed systems (1+ for specialist IC tracks)
  • Ability to work autonomously in a remote-first, async collaboration environment
  • Fluency in English for documentation, reviews, and partner communication

Preferred skills and experience

  • Experience with W3C Verifiable Credentials, DIDs, or OIDC4VCI / OIDC4VP
  • Contributions to Rust, TypeScript, Python, or Dart codebases used in production
  • Exposure to Substrate, Polkadot ecosystem, or blockchain anchoring patterns
  • Background in privacy engineering, applied cryptography, or formal security reviews
  • Prior work with wallet, fintech, or enterprise identity integrations

Additional requirements

  • Willing to overlap with EU and Americas time zones for critical releases and incidents
  • Able to travel up to 10% for team summits, partner workshops, or conferences
  • Reliable home internet and secure workstation suitable for development on sensitive cryptography code

Empoorio is an equal opportunity employer. Employment decisions are based on merit, competence, and qualifications without regard to protected characteristics. Reasonable accommodations are available upon request.

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