Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry.

At Blockstream, we’re building solutions on Bitcoin that will disrupt the existing financial system. We imagine a world where individuals and businesses can easily access a global, permissionless system to secure their money, use it every day, and invest it or put it to work. In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer 2 projects like Liquid and Core Lightning, to end user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. Come join us in our mission!

Blockstream is the global leader in Bitcoin and blockchain technology and the Software Library Engineer will play a key role in the development of new features and protocols shaping the future in the space. You will integrate into a continuous integration and deployment environment with many experienced engineers.

What You’ll Be Doing (Responsibilities):

  • Implement new protocol and features in the Blockstream Green Wallet
  • Maintain and improve existing infrastructure
  • Solve issues and bugs on existing codebases

What We Look For In You (Required Qualifications):

  • Strong knowledge of C++ programming language
  • Basic knowledge of Rust and Python
  • Interest in Bitcoin
  • Git and issues/PR/CI flow in platforms like GitHub and/or Gitlab
  • Focus on security and best practices
  • Team player mentality with excellent communication and collaboration skills
  • Highly-motivated, lifetime learner

Nice To Haves (Preferred Qualifications):

  • Experience with Liquid Network
  • SQL (especially PostgreSQL)
  • Docker
  • Cloud development and deployment (AWS or GCE)
  • Django
  • Designing, implementing, and use of APIs (RESTful, Websocket, RPC, etc.)
  • Cryptography/Applied Cryptography
  • Qt/qml
  • Java/Kotlin
  • Swift


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