Senior Cryptography Engineer

About the job

**This role is offered on a remote working basis within the U.K, Switzerland, or any EU country. Applicants should have full right to work in their country of residency - visa sponsorship is not available**

Copper is transforming how institutional investors engage with digital assets, providing market-leading infrastructure in addition to custody, trading and prime brokerage services.

Our award-winning custody application leverages the genius of multi-party computation (MPC) and can be configured to support cold, warm, and hot wallet solutions.

Asset managers are further protected by our pioneering ClearLoop network, which enables off-exchange trading and settlement at tier-1 digital asset exchanges. An offering enhanced by the availability of uncollateralised lending.

Our culture is based on innovation, enthusiasm and above all else collaboration.

Key Responsibilities:

  • Implement cryptography specifications into secure, production-level code.
  • Conduct cryptography literature review, select relevant papers, and produce a specification and pseudocode from the paper(s).
  • Interact with auditors and academia, as well as cryptographers on the client side.
  • Provide cryptography support for other Copper development teams.
  • Integrate cryptography primitives into Copperโ€™s internal MPC framework.
  • Participate in the design and implementation of Copperโ€™s next generation MPC framework.

Your experience skills and knowledge:


  • 5+ years engineering experience in the implementation of cryptography primitives, preferably in MPC, Threshold cryptography, Zero Knowledge Proofs or similar
  • 3+ years R&D experience specializing in MPC and Threshold cryptography, gained within academia or industry.
  • Proficiency in programming with Rust, or significant programming experience using C, C++ or Golang
  • Deep knowledge of common signature schemes of blockchains e.g., ECDSA, EdDSA, BLS
  • Experience with containerisation and DevOps practices.


  • Masters/PhD in Cryptography/Mathematics
  • Experience with HSMs, Intel SGX, iPhone secure enclaves etc.
  • Experience with Scala, Kotlin or Java.
  • Experience working on a cryptocurrency wallet, or a similar systems engineering problem
  • Familiarity with the digital asset custody space

Our companyโ€™s tech, tools, and languages

  • Software development languages: Rust, Scala, JavaScript/Typescript (Node.js)
  • Storage: PostgreSQL, Mongo DB, Clickhouse
  • Backend Frameworks: Spring, Akka HTTP
  • Frontend Frameworks: React.js, Electron.js
  • Interservice communication: RabbitMQ, gRPC, protocol buffers,
  • Architecture: Service-Oriented Architecture (SOA)
  • Infrastructure: AWS, Terraform, Ansible, Docker, Mesos/Marathon container orchestration, Consul, Nginx, GoCD by ThoughtWorks CI/CD, Prometheus, Kibana, Grafana

Our Benefits

  • Bi-annual bonus incentive
  • Employee Growth Share equity incentive
  • A minimum of 33 days holiday per year including public holidays (increasing by one day per year of service)
  • Private medical and dental care
  • Pension with matched contribution, up to 10% of salary
  • Home Working Energy Support Scheme
  • Regular game nights, quiz nights, cinema nights and cultural events
  • An annual Copper Summit (This year was Lisbon!)

Apply now
Apply now

Please let know that you found this job on Your support will help us grow!