Senior Software Engineer (full-stack) - Unchained Capital

Austin, TX or Remote (US-based)

At Unchained Capital, our mission is to help clients truly own their wealth through bitcoin. Unchained products include multi-signature vaults utilizing collaborative custody , non-rehypothecated loans backed by bitcoin , and buying bitcoin directly to vaults with keys that you control . We’re looking to expand our team with folks who want to solve hard problems whose solutions are directly tied to both bitcoin’s multisig properties and more traditional role-based permissions controls.

Working at Unchained is not your average full-stack software engineering position:

• We are one of the world’s largest bitcoin financial services firms and, as a result, are constantly being attacked by bad actors. We require hardened, proactive security measures and we are meticulous about access controls and physical/logical separation of responsibilities. Security is not an afterthought or a cost-center for us, it’s baked into our product and our company culture.
• We meticulously screen and often avoid SaaS services to minimize our external surface area and ensure our clients’ data remains protected – even if this means increasing the number of systems, we are directly responsible for maintaining.
• Many of our workloads are dynamic and sophisticated. The complexity of our product and the high cost of bugs means we deploy thousands of copies of our application through the development and testing lifecycle of each release.
  

Unchained Engineering is filled with talented, hard-working, and passionate engineers. We want to see a strong sense of ownership, intrinsic drive, a desire to learn and grow, and, ultimately, output and results. We hold each other to a very high standard and expect that accountability to be mutual. Finally, we strive to embody aspects of the Bitcoin ethos – transparent, brutally honest, and based on proof of work. If that sounds like just the thing you’ve been missing in your career up to this point – we look forward to seeing you in the inbox.

SYSTEMS & KNOWLEDGE

• Experienced with our tech stack is a huge plus, but not required
  • JavaScript / TypeScript
  • React (redux, react-query, functional components), Electron, HTML/CSS
  • Jest and Cypress e2e
  • Webpack, Vite, and potentially NextJS
  • Python (Flask, SQLAlchemy / alembic, pytest)
  • Celery
  • PostgreSQL
  • pydantic / OpenAPI
  • Redis
  • NodeJS
  • Git
• Solid grasp of RESTful API best practices
• Experienced using UNIX-like servers and comfortable at the command line
• Knowledge of and experience with Docker, Kubernetes, and AWS infrastructure
  

PERSONALITY & DRIVE

• Curiosity reigns
• Passionate with ability to focus deeply
• Intense work ethic
• Strong communication and documentation skills
• Excellent judgment, analytical thinking, and problem-solving skills
• Self-motivated individual that possesses excellent time management and organizational skills
  

HAVING ONE OR MORE OF THE FOLLOWING IS A PLUS:

• An eye for design – you’ll be building out novel UI or UX workflows for a new category of financial services, as well as contributing to our component library.
• Experience building Helm charts
• Experience with Jenkins or other CI build systems
• Strong understanding of micro-services and related architectures
• Experience working with bitcoin at the protocol level (redeem/witness scripts, extended public keys (xpubs), signatures, taproot)
• Experience working with bitcoin and lightning network nodes
  

If this sounds like something you’re interested in, please apply here and include a cover letter that addresses:

• Why do you want to work at Unchained Capital? What about this job description appealed to you?
• What do you find exciting about bitcoin? What articles or writers have helped you on your bitcoin journey?
  

If we choose to move forward, there will be a screening interview with HR followed by a technical interview consisting of discussion questions followed by a live coding exercise in a toy environment based on a simplified version of our tech stack.