Job Description

Bitkey sits within the Proto team. Proto's purpose is to accelerate the world’s transition to a more open economy by making products that increase access and independence for everyone. The first two initiatives we’ve identified that represent the biggest impact to this purpose are in the Bitcoin space with Bitcoin mining and Bitkey, a self custody Bitcoin wallet. While we’re starting there, we don’t believe the need for tools to increase one’s independence is limited to bitcoin or the financial space. One principle across everything we do in Proto is open development – show and tell. We develop products in the open, you can read more about them at bitkey.build and mining.build.

We are growing our small cross-discipline engineering team and are looking for a mobile engineer who has experience with or is open to learning Kotlin Multi Platform. We have blurred the lines of a traditional Android and iOS team by focusing on the right, single solution across multiple platforms in efforts to make it simple and easy to move bitcoin on and off Bitkey. 

You will:

• Ship a non-custodial, hardware-enabled bitcoin wallet to a global audience
• Work closely with designers and product managers to build user experiences the people trust to move bitcoin on and off Bitkey
• Directly impact architecture and design decisions to ensure we successfully scale globally
• Work with a small team of engineers across our Mobile Application (KMP, Kotlin, Swift) and Rust backend on a team responsible for features from ideation through long-term maintenance

Qualifications

You have:

• 5+ years of experience developing in one of the following languages: Swift (iOS), Kotlin (Android Multiplatform), Rust (Backend Services) 
• Experience with designing and building APIs between mobile applications and backend services
• Experience working with small cross-functional teams working on 0->1 features
• Interest in the opportunities and challenges that come with building a global-first product from the ground up
• Interest in Bitcoin and expanding financial access to everyone

Technologies we use:

• Mobile Application
  • Kotlin
  • Kotlin Multiplatform
  • Swift
  • SQLite
• Backend Services
  • AWS
  • DynamoDB
  • Rust
• Other
  • Github
  • Datadog

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