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Back-End Engineer (With Frontend Capabilities)

Barcelona, Spain

At Amenitiz, we’re on a mission to simplify hospitality management, whether it's in the bustling streets of Paris or the serene Uyuni Salt Flats of Bolivia.

Empowering over 14,000 hoteliers worldwide, we’re more than just another SaaS scale-up—we’re revolutionizing one of the world’s oldest industries. With over $50 million raised from top-tier VCs who back disruptive giants like Alibaba, Toast, Zendesk, Delivery Hero, Revolut, and Loom, we've been recognized as a TravelTech Titan and one of Wired's hottest start-ups.

Our team, nearly 300 strong, is based in beautiful Barcelona. At Amenitiz, we cultivate a culture of positivity and personal growth. Our team members are enthusiastic, thrive on ownership, and excel in collaboration. Every day, we lead by example, prioritizing client satisfaction and executing with excellence. We are committed to making a positive impact wherever we go.

About the role

As a Mid-Level Software Engineer, you will help build and maintain scalable backend systems and high-performance APIs that support the continued growth and evolution of our platform. You will work closely with senior engineers and cross-functional teams to deliver robust, observable, and well-documented solutions in a fast-paced, high-growth environment. While your primary expertise will be in backend development, you will also contribute to frontend projects when needed, making you a versatile member of the engineering team. This role is ideal for an engineer ready to take on more ownership while learning from and collaborating with senior team members.

Key Responsibilities

  • Develop and maintain scalable, maintainable, and performant backend systems that meet business and technical requirements.
  • Build and enhance RESTful APIs, ensuring high reliability, security, and performance.
  • Collaborate with Product Managers to refine user stories and translate them into technical specifications and implementation plans.
  • Maintain clear and detailed documentation for APIs, services, and backend architecture.
  • Implement observability practices using monitoring and logging tools to ensure system stability and visibility.
  • Provide technical support to the Care team by troubleshooting and resolving backend-related issues.
  • Contribute to scaling our platform from MVP to high-traffic, production-grade systems.
  • Take ownership of frontend tasks when required, including building React components, integrating APIs, and implementing UI changes.
  • Collaborate with frontend engineers to ensure smooth backend–frontend integration.

About you

  • 3+ years of professional experience as a Software Engineer, with a strong focus on backend and API development.
  • Proficiency in Ruby on Rails, including API design, ActiveRecord usage, and performance optimization.
  • Experience with React or similar frontend frameworks (Vue, Angular) for occasional UI development.
  • Working knowledge of JavaScript/TypeScript, HTML, and CSS, including responsive design principles.
  • Familiarity with CSS frameworks such as Tailwind CSS, Bootstrap, or Material UI.
  • Understanding of distributed systems, service-oriented architecture, and design patterns.
  • Experience working with cloud platforms (AWS, GCP, or Azure).
  • Experience with backend testing frameworks (RSpec, Minitest) and familiarity with frontend testing tools (Jest, Cypress).
  • Strong communication skills and the ability to collaborate effectively in English within cross-functional teams.

Our Benefits

  • 💊 Extensive medical, and wellness coverage to ensure you’re feeling great physically and mentally.
  • 💰 We provide Stock Options that ensure you have ownership in our success.
  • 🥐 Our beautiful and spacious office is located right in the heart of Barcelona (Ronda de Sant Pere). Daily fruits, Tuesday breakfasts, Thursday after-office, and everyday sunshine and views at the rooftop.
  • 🎉 We do monthly team-building activities. From sailing the Mediterranean Sea and shows like Cirque du Soleil, to poetry, cooking, or magic workshops.
  • 💳 Forget about waiting till the end of the month to get paid. Access your salary any day you want!
  • 🍽️ Flexible remuneration: enjoy saving on restaurants, kindergarten, transport, and training.
  • 📈 Exponential growth opportunities within an energetic, fast-growing, and international environment (35+ nationalities).
  • 📚 Eager to be inspired and learn? We will buy ANY book you want, while also having a deep library with amazing knowledge to trigger your growth.

If you’re a strategic thinker with a passion for driving growth and innovation, we want to hear from you! Apply now to join our team and be a part of our exciting journey at Amenitiz!

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