Senior Software Engineer – Blockchain Integrations


Department environment 

We aim to achieve a balance between corporate culture and start-up culture, and at the same time be close to product solutions
Therefore, we divide our department into small self-sufficient teams that can make decisions on their own
This applies to all stages of product production: from conceptualisation to architecture, to build, to release, to iteration and support 

You’ll do lots of research and develop your knowledge regarding cryptocurrency and blockchain including data processing, protocols integration etc
In addition to this, you’ll be surrounded by friendly high-level specialists who are ready to share their knowledge

The team is currently working on several major product changes that will improve client experience with cryptocurrency interaction like secure cryptocurrencies management or simplifying user flows when interacting with Decentralised Finance (DeFi) protocols

Role Responsibilities  

  • Support and improve current services that handle over 50 blockchain protocols with more than 500 cryptocurrency assets 
  • Research and building new blockchain integration and solutions, including blockchain data processing, cryptocurrency protocols integrations, DeFi integration etc 
  • Support and solve problems from clients and stakeholders 

Your experience, skills and knowledge 

  • Experience working on blockchain development (cryptocurrency wallets, blockchain data processing, DeFi etc) 
  • Extensive experience building software with an OOP language: Scala, JS/TS (Node
    js), Kotlin, Java, or Go 
  • Familiarity with relational databases such as PostgreSQL 
  • Experience in building and optimising systems for working with large amounts of data, both at the database level and interactions between services 
  • An understanding of the critical importance of unit tests, well-versed and able to build automated tests of server-side code 
  • You’re professionally curious and willing to develop yourself as a multi-stack developer
    You are ready that you should research and use technologies and programming languages that you didn’t face before 


  • Experience with containerisation and DevOps practices  
  • Experience developing Smart Contracts 

Our core tech stack  

  • Software development languages: Scala, Javascript/Typescript (Node
    js), Rust 
  • Storage: PostgreSQL, Mongo DB, Clickhouse  
  • Backend Frameworks: Spring, Akka HTTP  
  • Frontend Frameworks: React, ElectronJs  
  • Interservice communication: RabbitMQ 
  • 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
  • Bupa Private Medical Insurance: Individual cover under Copper’s Employee Healthcare Scheme
  • Bupa Dental Insurance: Individual cover under Copper’s Employee Healthcare Scheme
  • Pension up to 10% matched Contribution to our Company Pension Scheme via Smart Pensions
  • Home Working Energy Support Scheme
  • Cycle to Work
  • Life Insurance including mental health support & EAP
  • Eye Care
  • 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

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