Senior Frontend Developer

Blockchain development company

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

The client

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

They’re now 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.

The role

What you’ll be doing:

  • Develop cutting edge software solutions for start-ups and corporate clients
  • Design and build large scale, high volume systems
  • Engage with clients to understand their product vision and design proof-of-concept and production grade products
  • Create user-friendly web and mobile interfaces
  • Write automated tests

The candidate

Required skills & experience:

  • 5 + years of frontend development experience (Vanilla JS, Angular.js, Ember.js or jQuery)
  • 2 + years React experience
  • Deep web knowledge (DOM, CSS)
  • Experience in writing automated tests
  • Redux or similar Flux-like state-management tools
  • Unit testing
  • Git, Github

Additional desirable experience:

  • React Native
  • Experience with accessibility and legacy browser support (IE)
  • React web & relevant stack: Webpack, Redux etc
  • Experience of backend development with Node.js (Express.js)
  • Experience with SQL and NoSQL Databases (MySQL/Postgres, Redis)
  • Basic sysadmin and Bash scripting knowledge
  • Experience with CSS3 new features (CSS3 transitions)
  • Mobile development experience (Native or Phonegap/Cordova)
  • Continuous integration tools
  • End to end testing
  • BDD/TDD
  • Experience working with project management tools, such as Slack, Trello, JIRA etc