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Senior Ruby Developer

full-time Applied Blockchain London

About Applied Blockchain:

Applied Blockchain is an innovative applications development company, focusing on distributed ledger technology and smart contracts.

Based in London at Level39 Fintech hub in Canary Wharf, Applied Blockchain has an expert team of blockchain developers that have been building cutting-edge solutions for disruptive startups and corporate clients in banking and finance, e-payments, energy trading, aviation, telecommunications and social impact sectors.

We are building a new generation of decentralised applications, working through some of the most interesting problems in this field such as KYC, identity management, transactions anonymity, encryption and data security.

What you’ll be doing:

  • Create and deliver cutting-edge blockchain based software for innovative startup and corporate clients.
  • Work with a full-stack development team to build a combined web/mobile app based on Ruby.

  • Write clean, tested, maintainable and efficient Ruby code.

  • Follow best practices (test-driven development, continuous integration, continuous delivery, refactoring and code standards.

  • Working within a great agile team.

Required skills & experience:

  • 2+ years with Ruby (Roda, Sinatra, Sequel, Rails)

  • 1+ year experience with Node.js
  • RSpec testing & continuous integration tools

  • Cloud computing platforms: Azure, AWS

  • MySQL, Redis other SQL or NoSQL databases

  • Git, Github (Git flow/Github flow)

  • Linux command line knowledge (Bash programming)

Additional desirable experience:

  • Experience developing blockchain applications using Bitcoin, Ethereum (Parity, Solidity) & Hyperledger Fabric

  • Experience working with project management tools, such as Jira, Trello etc…

  • DevOps tools: Docker or Ansible, Kubernetes, Jenkins

  • Javascript either frontend or backend


  • CSS frameworks, such as Bootstrap, Materialize,

  • Experience with templating languages e.g. Haml

How to apply:

Send your CV in English to [email protected] quoting the Job Title in the subject. We will get in touch with you shortly if you were successful to the interview stage.

published: March 12, 2018

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