SeniorDevOnly AS is hiring a

Senior Ruby on Rails Engineer


This is a great opportunity for someone with the right skills and experience to bring strong technical prowess as the company continues to grow. We’re looking for a Senior Ruby on Rails Engineer to become part of our journey for the long run, to help take our 4-year-old British startup to the next level.

The product is a SaaS platform for creating ideas, planning experiments, testing and execution for many recognisable corporate brands. Now is an exciting time to join; the development team is small but growing and we have big challenges ahead.

The business in short:

  • B2B bootstrapped startup making a profit with a growing number of paying enterprise customers
  • Running on Rails 4.2 and in the process of migrating the front end to React
  • The application is large and complex, and has been developed with a focus on getting to market fast (so we have some technical debt!)

Option of working remotely or from a nice office in the centre of Kyiv.


This is a new role in our growing team, and we’re looking for someone with a proven track record in:

  • Taking technical ownership of the back end on complex Ruby on Rails projects (looking for a developer with 5+ years of commercial Ruby coding experience)
  • Estimating and reporting for a non-technical stakeholder (the Founder in our case) and managing expectations very well. We are also in process of hiring a Head of Engineering.

Bonus if you have:

  • Experience, knowledge, interest in frontend development (React)
  • Experience implementing Agile practices and CI/CD
  • Product Ownership experience


We offer:

  • Work in a growing startup, reporting directly to the founder and being responsible for the whole technical solution
  • Opportunities for professional growth and increasing responsibility as the team grows
  • Competitive salary and paid vacation
  • Budget for self development (e.g. attending conferences)
  • Company parties and team-buildings

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