Lead Ruby On Rails Engineer


CoinFi seeks a talented Lead Ruby on Rails Engineer to lead the development of our customer facing cryptocurrency news and financial data platform.

You should be intimately familiar with Rails and the Ruby ecosystem, capable of making and explaining architectural decisions that will have lasting impact.


  • Intimate familiarity with the Ruby on Rails framework, with emphasis on Rails 5
  • 3+ years working on production Ruby on Rails applications
  • Architectural mindset with focus on producing reusable and maintainable code
  • Clear verbal and written communicator with the ability to explain technical decisions and obtain buy in for those decisions
  • Detailed grasp of best practices surrounding web application security, scalability, performance, and stability (including but not limited to background jobs, queuing, caching, etc.)
  • Understanding of Git and Github Flow
  • Deep familiarity with relational database schema design and architecture (SQL)
  • Experience with deployment on Heroku
  • Enjoys the opportunity to write clear and concise documentation
  • Experience writing and maintaining automated tests
  • Basic grasp of frontend development and responsive design
  • Willingness to learn and improve every aspect of the development process
  • Experience leading teams and mentoring mid-level / junior developers
  • Passion for cryptocurrency


  • Computer Science degree, or deep understanding of data structures, algorithms, and running time analysis
  • Experience with React / ES6 / Babel / Webpack
  • Experience with NoSQL databases (Redis, Postgres JSONB)
  • Experience with API design and documentation
  • Personal investing experience with cryptocurrencies

Apply now
Apply now

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