Copper.co is hiring a

Cryptography Engineer

Department environment

The Key Management team at Copper is tasked with developing the core components of Copper’s custodial solution. This entails the constructions of tools and services essential for secure storage and transfer of digital assets. A focal point of the team’s responsibilities includes developing and integrating MPC (Multiparty Computation)-based cryptographic signature algorithms. Additionally, the team is charged with the development of APIs that facilitate the interaction of cryptographic primitives with both client-facing applications and certain internal services within Copper.

Key responsibilities:

• You will conduct cryptography literature review, select relevant papers, and produce a specification and pseudocode from the paper(s).
• You will implement cryptography specifications into secure, production-level code.
• You will integrate cryptography primitives into Copper’s internal MPC framework.
• You will participate in the design and implementation of Copper’s next generation MPC framework.
• You will interact with auditors and academia, as well as cryptographers on the client side.
• You will provide cryptography support for other Copper development teams

Your experience skills and knowledge:

Essential

• 5+ years engineering experience in implementation of cryptography primitives, preferably in MPC, Threshold cryptography, Zero Knowledge Proofs or similar.
• 3+ years R&D experience specializing in Zero-Knowledge proof systems, MPC or Threshold cryptography – Relevant academic experience counts.
• Familiarity with algorithms and aptitude in [cryptographic] system design.
• You are interested in a unique intersection between academia and industry wherein you will be working with both theory and real-world implementations and shifting between the two regularly as needed.

Desirable

• Expertise in modern [Zero-Knowledge] proof systems, their design and implementation.
• Familiarity and experience in modern cryptography research and its tools e.g. Universal Composability frameworks.
• Prior experience with systems programming e.g. Working on cryptocurrency wallets.
• Prior experience with HSMs and TEEs.
• Prior experience with Go Programming Language
• Familiarity with the blockchain and/or crypto custody space.

Our company’s tech, tools, and languages

For this position, you will predominantly be dealing with Go for implementations and LaTeX for formal documentation. You will also need to interact with some interservice communication tools as well as some infrastructure tools.

The full company tech-stack includes:

• Software development languages: Go, Scala, JavaScript/Typescript (Node.js), Rust
• Storage: PostgreSQL, Mongo DB, Clickhouse
• Backend Frameworks: Spring
• 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

The benefits offered

• Holidays: 27 days per annum paid holiday, in addition to bank holidays
• Years of Service Days: Employees are awarded one additional day of paid time off per year of service (up to three years)
• Vitality Health:
• Medical Insurance: Copper provides all employees with individual cover. Medical history is disregarded, and a 24/7 virtual GP is available (£100 excess per person per year)
• Dental Insurance: Comprehensive dental cover for preventative, restorative and emergency treatment
• Audiology Cover: Employees can claim back up 80% of costs, up to £300, for any hearing tests or hearing aids.
• Optical Cover: £500 optical cover (through Vision Express) or 80% reimbursement up to £300 for any other optician
• Menopause Support: Unlimited support for those experiencing symptoms of the menopause, such as video consultations with a dedicated menopause practitioner.
• Vitality services also include an additional £100 for minor diagnostic tests and private prescriptions, including home diagnostics.
• Headspace - Copper's policy provides all employees with a free Headspace subscription. Headspace provides great resources to manage stress, improve sleep, meditate, and enhance mindfulness.
• Discounts and free benefits - the Vitality programme has been designed for preventative care to encourage members to improve their overall health and will reward those for doing so. Employees can access additional benefits such as 50% off running shoes, discounted health screenings, 50% off at Nuffield Health or Virgin Active gyms and much more.
• Home Working Energy Support Scheme: to combat energy prices increasing globally, Copper will provide you, in addition to your salary, with a monthly top-up of £60 or £75 (subject to your energy supplier)
• Pension up to 10% matched contribution to our company pension scheme via Smart Pensions
• Cycle to Work
• Life Insurance cover: Four times your base salary
• EAP: access unlimited mental health consultations and contact a 24/7 confidential helpline for emotional support
• ClassPass
• Unmind
• Sponsored Learning and Development opportunities
• Regular company events and social activities

In return for everything you can bring to Copper, we can offer you an exciting, challenging role in a fast-growing and dynamic business, with career opportunities and welcoming working environment.

If you think you have everything we're looking for and more, then we'd love you to apply for the opportunity.

Copper is an equal opportunity employer. We embrace diversity and equal opportunities in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives and skills. The more inclusive we are, the better our work will be. So bring us your experience, perspectives and skills. It is in our differences that we will continue to grow and ensure Copper is transforming how institutional investors engage with digital assets.

Apply Now: