Ruby on Rails Backend Developer
The posting does not state a salary. This range is our estimate from the role, the location and the stack — treat it as a guide, not an offer.
- Level
- Senior
- Apply from
- Spain
About the role
- Develop and maintain SaaS product features.
- Build backend solutions using Ruby on Rails.
- Participate in the full Agile development lifecycle.
- Collaborate with cross-functional teams.
- Ensure quality standards and best practices.
Skills the posting asks for
- Ruby on Rails
- REST APIs
- Elasticsearch
Summarised from the employer’s posting, which is reproduced in full below.
The employer’s full posting
👨💻 Senior Backend Developer (Ruby on Rails)
📍 Madrid, A Coruña, Salamanca, Barcelona, Ciudad Real | 🧑💻 Hybrid Model | 🕒 Full-time | 📄 Permanent Contract
At TeamSystem | Quipu, we help thousands of freelancers, SMEs, and accounting firms across Spain manage their businesses simply and efficiently 💼✨ through an intuitive and reliable SaaS platform.
Since October 2025, Quipu has been part of TeamSystem, a leading international business software group, enabling us to continue innovating and scale our product with a long-term vision.
🚀 Your Mission
We are looking for a Senior Backend Developer (Ruby on Rails) to help us continue evolving our SaaS product.
You will join a highly skilled Product and Technology team, actively contributing to the development of new features and the continuous improvement of a platform used by thousands of customers every day.
Your work will have a direct impact on the quality, scalability, and future evolution of the product.
🛠️ Technology Stack
Backend
📍 Madrid, A Coruña, Salamanca, Barcelona, Ciudad Real | 🧑💻 Hybrid Model | 🕒 Full-time | 📄 Permanent Contract
At TeamSystem | Quipu, we help thousands of freelancers, SMEs, and accounting firms across Spain manage their businesses simply and efficiently 💼✨ through an intuitive and reliable SaaS platform.
Since October 2025, Quipu has been part of TeamSystem, a leading international business software group, enabling us to continue innovating and scale our product with a long-term vision.
🚀 Your Mission
We are looking for a Senior Backend Developer (Ruby on Rails) to help us continue evolving our SaaS product.
You will join a highly skilled Product and Technology team, actively contributing to the development of new features and the continuous improvement of a platform used by thousands of customers every day.
Your work will have a direct impact on the quality, scalability, and future evolution of the product.
🛠️ Technology Stack
Backend
- Ruby on Rails
- Elasticsearch
- Sidekiq
- Redis
- MySQL
- REST APIs
- JavaScript (ES6+)
- React
- React Native
- AWS
- Nginx
- Capistrano
- Ansible
- Terraform
- Improve and maintain the existing SaaS product while developing valuable new features.
- Build backend solutions using Ruby on Rails and related technologies.
- Participate in the full Agile development lifecycle, including refinement, estimation, technical analysis, and delivery.
- Collaborate closely with the Product Owner and the development team.
- Work cross-functionally with Sales, Marketing, and Customer Success teams.
- Contribute your expertise to discuss and define technical approaches and solutions.
- Take ownership of your developments end-to-end, ensuring quality standards and best practices are followed.
- Strong experience as a Backend Developer with Ruby on Rails.
- Solid understanding of designing and consuming REST APIs.
- Focus on code quality, testing, and software development best practices.
- Ability to work independently and propose efficient solutions.
- Collaborative, humble, and team-oriented mindset.
- Advanced level of English (written and spoken), with the ability to communicate effectively in an international environment.