Who we are:

PolySign is a startup in downtown Oakland working on institutional custody for cryptocurrencies. Cryptocurrencies are an exciting emerging market, but security (custody) is the major problem preventing its mainstream adoption. As a member of a small, world-class technical team, you can can have a huge impact on our solution and the success of cryptocurrencies.

PolySign is co-founded by Arthur Britto, a co-founder of Ripple, a recognized leader in payments technology.

What you'll do:

You tell us! Sometimes, the roles we have are not a direct match. We still encourage you to apply, with a cover letter explaining why you would be a good fit. We are always looking for good engineers, so don't be shy!


  • Experience with microservices
  • Solid experience in at least one compiled and one interpreted language

Nice to have

  • Experience with Python
  • Experience with RPC systems
  • Experience with AWS and Kubernetes
  • Experience with user identity/cryptography/public blockchains

Our key technologies:

  • Backend: Python (gRPC, Tornado), C, Postgresql, Redis, HSMs
  • Infrastructure: AWS, Kubernetes, Docker
  • OS: Linux

What we offer:

  • The opportunity to join a well-funded, cutting-edge financial technology company at a very early stage
  • Competitive salary and equity
  • Competitive medical benefits
  • 401k
  • Flexible working policies: we work twice a week from home
  • Smart coworkers who are world class experts in the field of crypto-currency

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