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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.

Blockstream is looking for Software Engineers to work on our enterprise custody solution. You’ll design and maintain scalable end-to-end systems that serve APIs and SDKs, and work on everything from database architecture to cloud-based deployments. 

What You’ll Be Doing (Responsibilities):

• Design, develop, and maintain scalable end-to-end systems that serve APIs and SDKs.

• Full stack software development, from database architecture to cloud-based deployment.

• Optimize system performance and security to support high-availability applications.

• Collaborate with cross-functional teams, including front-end developers, product managers, and hardware engineers to deliver seamless solutions.

• Implement best practices in software development, including CI/CD, automated testing, and code reviews.

• Research and integrate emerging technologies to enhance security and system efficiency.

• Troubleshoot and resolve complex software issues in a fast-paced development environment.

• Mentor junior developers and contribute to team knowledge-sharing efforts.

What We Look For In You (Required Qualifications):

• 5+ years of experience in full-stack software development, with a focus on backend engineering.

• Proficiency in backend technologies such as C++, Python, Rust, Node.js.

• Strong experience in designing and building RESTful APIs and SDKs.

• Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).

• Deep understanding of database technologies, including SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis).

• Familiarity with authentication and security best practices, including OAuth, JWT, encryption, and access control.

• Experience with CI/CD pipelines, automated testing, and DevOps tools.

• Strong problem-solving skills and ability to work independently or as part of a team.

• Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders.

Nice To Haves (Preferred Qualifications):

• Experience with Bitcoin, blockchain technology, or cryptography.

• Open-source software development experience.

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

• Experience with system/software architecture.

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