Ruby Developer

Prague, Czechia Full-time

Are you passionate about developing cool, useful web applications using an agile approach? Are you an experienced, hard-working Ruby on Rails developer looking for a fun and exciting environment to join? If so, read on…

4finance IT is an exciting FinTech company which has revolutionized the online consumer finance industry. State-of-the art software is at the heart of our business and the main driver of our future growth. Discover what it’s like to be part of a team that rewards taking risks and trying new things. It’s time to love what you do!  

Being hungry for success, having the mindset of a winner, being driven towards action and achievement, we all want our personal description to even slightly resemble this. If this is something that drives you if you are curious to see what is beyond the horizon, you are not afraid to fail – and learn from that failure – you are in the right place. 

What we can give you: 

We give you an entrepreneurial work environment to be bold, curious and pioneering in your job. To achieve excellent results, you will have professional freedom to strive for creative solutions in complex situations. Together we will put people first, be it our colleagues or customers – they are at the heart of everything we do! Together with you, we will create products for people who are financially underserved, and we will do this in a responsible way. 

About the position

We are looking for energetic, dedicated software coding engineers with plenty of experience in Ruby on Rails. You will have full ownership of your work and the freedom to execute it how you think it makes sense, as long as it helps the company grow quickly whilst providing a valuable service to our customers.  We will give you all the tools, support and growth opportunities you need.


  • Design, build, and maintain efficient, reusable, and reliable Ruby code.
  • Integrate user-facing elements developed by front-end developers with server-side logic.
  • Identify bottlenecks and bugs and devise elegant solutions.
  • Help maintain code quality.
  • Proposing and implementing innovative solutions that meet needs with respect to functionality, performance, scalability, reliability and adherence to development principles.
  • Awareness of emerging technologies and capabilities that will support digital and mobile growth.
  • Demonstrate a commercial understanding of the current digital, mobile and web trends.
  • Ensure that Information Security controls are in place and ensure we implement and maintain a secure environment.


  • You must have 3+ years of web development experience—preference given to candidates who have experience with large applications of some scale.
  • You must have a solid grasp of object-oriented programming, automated software testing, databases, development, and testing methodologies.
  • You must have experience developing a web framework—with Ruby on Rails a plus.
  • Be interested in working across the software stack (Ruby on Rails, JavaScript/CoffeeScript).
  • Experience with React.js would be very advntageous
  • Have experience in writing tests using RSpec/capybara
  • A passion for working as part of a progressive, collaborative, agile and Scrum environment
  • Be willing to help your teammates, share your knowledge with them, and learn from them.

Our offer:

  • Challenging projects that you will have real impact on
  • Competitive salary + benefits: Multisport card, Individual development plans, Hello world gifts, Birthday & X-mass presents, Modern Office, Events / Team Building, 

    Fruits/Breakfasts in the office, Teleworking, Flexible working, Meal vouchers, 2 additional paid sick days, 25 days of holidays, Parking, Chill out zone, Employee Refferal Program


We are waiting for you!

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