top of page

Ruby on Rails Frontend


Coimbra, Portugal

Are you ready to be part of the most exciting journey towards a more sustainable world and change the future of circular economy with us?  

With LoopOS we are revolutionizing the way businesses operate with our innovative software for circular economy. It works as an ecosystem of applications that allows the creation of circular flows of items, enabling any retailer/user to create and manage their end-to-end circular business.  


If you master Ruby on Rails, we have the right opportunity for you! We are looking for a Ruby on Rails frontend developer for our LoopOS team that will be responsible for creating high-quality documentation, contributing to our commitment to deliver exceptional products. The candidate must provide clear and concise information about our products that can be easily understood by different audiences and collaborate with cross-functional teams.  

Your impact in the role  

  • Write clean, maintainable and efficient code  

  • Design robust, scalable features  

  • Contribute in all phases of the development lifecycle  

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

  • Drive continuous adoption and integration of relevant new technologies into design  

  • Liaise with fellow front and back end developers  

  • Development of new web applications  

  • Maintenance of existing web applications  

What matters the most for this role 

  • Proven work experience as a Ruby on Rails developer  

  • Proven work experience in Frontend development  

  • Demonstrable knowledge of front-end technologies such as JavaScript, HTML, CSS and JQuery.  

  • Knowledge of Rails 7 Frontend technologies such as Stimulus, Turbo, Hotwire. Be emphatic and organized;  

  • Multi-tasking and time-management skills, with the ability to prioritize tasks;   

  • Motivated with a positive attitude;  

  • Willingness to be part of a bigger team, provide and receive constructive feedback.  

What is nice to have 

  • Experience developing highly interactive applications  

  • Passion for writing great, simple, clean, efficient code  

  • Respect and develop pixel-perfect features according to design specifications  

  • Good knowledge of code versioning tools like GitHub, Git, etc.  

  • experience with full web stack including HTTP, CSS, REST  

  • Capacity to have a critical thinking and agility in project development

Are you still not sure this is the place for you?

  • Youth and friendly entrepreneurial spirit, we are here for each other;  

  • Three different working models, we value our productivity and work-life balance;  

  • Career development and massive grow within the company, we motivate each other everyday;  

  • Integrative team-buildings and outdoor activities, we value our day-to-day out of the office;  

  • Opportunity to work close to big retailers, we never want to stop growing;  

  • Health insurance and more than 24 days of holidays per year;  

  • Huge chance of having the best sunsets in town in our amazing rooftop 😊  

Find out what is like to work at The Loop co. 

About The Loop co.

We are a growing green tech company based in Coimbra, responsible for creating innovative product solutions to a more circular world!

As a team, we are highly motivated to do remarkable things every day. We Loopers are exceptional people, passionate about our mission and dedicated to deliver the best circular economy solutions to our customers and partners!   

At The Loop co. we are committed to create an inclusive and diverse workplace. Our employment decisions are based without regard to race, religion, color, age, genetic information, sex, sexual orientation, gender, gender identity, gender expression, citizenship, ancestry, marital status, physical or mental disability, pregnancy or childbirth. If you need assistance and/or accommodation, please let us know.

Want to learn more about LoopOS? Visit the project's website here.

Ready to join the loop?

bottom of page