Senior Mobile Engineer, Flutter + Rust


Anywhere Remote only

Full Time

$90-130k (annually)


Aug 2

Do you believe in sovereignty, privacy, and freedom? Do you want to help Bitcoin and sovereignty achieve widespread adoption?

Foundation builds Bitcoin-centric tools that empower you to reclaim your sovereignty. This starts with Passport, our best-in-class Bitcoin hardware wallet. Passport offers a huge leap forward in design and user experience, making it easier than ever to securely store your own keys.

We’ve shipped our first 1,000 Passport Founder's Edition units to customers to rave reviews, and we are now shipping an updated Passport Batch 2 alongside Envoy, our new mobile companion app.

We've assembled a world-class, multidisciplinary team – and now we are looking to build it out. Together, we'll build a new ecosystem that we call sovereign computing. Our roadmap is aggressive, and we'll be shipping innovative new products every year.

The Role

As one of our key hires for Foundation’s multidisciplinary software engineering team, the Senior Mobile Engineer will collaborate with our Engineering and Design teams to develop best in class sovereignty experiences for our mobile app, Envoy, and our next generation of sovereign computing products.

Your primary responsibility will be to develop new features for Foundation's mobile apps using Dart, Flutter, and Rust.  This initially includes Envoy, Foundation's mobile companion app for Passport.


  • Develop new features for Envoy in Dart or Rust using the Flutter framework
  • Create user interface features
  • Add support for new sovereignty features
  • Investigate and resolve bugs
  • Follow Foundation’s software development processes
  • Document code
  • Implement unit tests for all code (test-driven development)


  • 5+ years of software engineering experience
  • 2+ years of experience developing real Flutter apps
  • Experience with Bitcoin wallets is preferred
  • Enthusiasm for Bitcoin and/or empowering people with sovereignty is required

Technology Stack

  • Dart
  • Rust
  • Flutter
  • BDK - Bitcoin Development Kit (Rust)

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We design and manufacture Bitcoin-centric tools that empower you to reclaim your sovereignty