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Senior Scala Engineer - Hybrid

Job in London, Greater London, W1B, England, UK
Listing for: Copper
Full Time position
Listed on 2026-02-18
Job specializations:
  • Software Development
    Backend Developer, DevOps, Software Engineer, Cloud Engineer - Software
Job Description & How to Apply Below

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

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 Clear Loop network, which enables off-exchange trading and settlement at tier-1 digital asset exchanges. An offering enhanced by the availability of uncollateralised lending.

Copper's secure wallet architecture is available as a standalone application, a mobile app, and a browser extension for smart contract signing. With an easy-to-navigate interface, market-making liquidity, and a team always ready to assist you, Copper will change the way you look at crypto

At Copper, our culture is based on innovation, enthusiasm, and above all else collaboration.

Department environment

Our Engineering team has remained at the forefront of blockchain technology, setting standards for the cryptocurrency infrastructure globally since the firm’s inception in 2018. We are now looking to expand the team with several exceptional individuals who will help us further accelerate the crypto ecosystem’s coming of age.

Role Responsibilities
  • Join as a part of the product development team, participating in every stage of product and feature development - from conceptualisation to architecture, to build, to release, to iteration and support
  • Build the backend services for our new features, as well as supporting the existing product lines
  • Build integrations with cryptocurrency exchanges, traditional financial services providers, payment networks and other third parties
  • Support and solve problems from clients and stakeholders
Your experience, skills and knowledge
  • 2+ years building Scala applications in an OO way
  • 5+ years of experience in software engineering using Scala/Java/Kotlin and/or Node.js
  • Well-versed with (and committed to) the OOP paradigm and design patterns
  • An understanding of the critical importance of unit tests, well-versed and able to build automated tests of server-side code (TDD)
  • The ability to prioritize, distinguish between major and minor issues and not get hung up on the latter
Our core tech, tools, and languages
  • Software development languages:
    Java, Scala, and Node.js
  • Architecture:
    Service-Oriented Architecture (SOA)
  • Cloud: AWS, CI/CD pipelines, Docker, Kubernetes
  • Interservice communication:
    Rest, Rabbit MQ, HTTP
  • Storage:
    Postgre

    SQL, Mongo DB
Benefits
  • Bi-annual bonus incentive
  • Employee Growth Share incentive
  • 25 days holiday a year plus bank holiday entitlement (plus one day per year of service, up to 30 days)
  • Private medical and dental care
  • Pension with matched contribution, up to 10% of salary
  • Home Working Energy Support Scheme
  • Monthly events such as game nights, quiz nights, cinema nights
  • An annual Copper Summit (This year was Lisbon!)
  • Breakfast and refreshments in the office
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Position Requirements
10+ Years work experience
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