Your mission
...Development & Engineering
Design, build, and maintain backend services and microservices Develop and integrate LLM-powered features (intelligent search, travel recommendations, document processing, personalised content) Write clean, testable code following best practices Participate in code reviews and contribute to architectural decisions Own features from design through deployment and monitoring AI & Automation
Engineer effective prompts and prompt chains for travel-related use cases Integrate LLM APIs to enhance user experiences and automate workflows Build RAG systems for intelligent content retrieval Evaluate LLM outputs for accuracy, cost-efficiency, and user value DevOps & Collaboration
Implement CI/CD pipelines, IaC, and containerised deployments Monitor application performance and respond to incidents Work in agile/Scrum squads with international team members Mentor peers and share knowledge across teams Our Tech Stack
Frontend: React + Typescript Backend: Ruby on Rails (latest versions) Databases: PostgreSQL, Redis Cloud & Infrastructure: Azure, Docker,



Kubernetes Automation: GitHub Actions, Terraform Testing: Playwright, RSpec Monitoring: DataDog Collaboration: Slack, Notion, Azure DevOps We're always open to new technologies and improvements
Our idóneo candidate...
3-5 years of professional software development experience (backend focus) Strong proficiency in backend development in Ruby on Rails preferably Experience with containers and API design Familiarity with DevOps practices : CI/CD, containers, IaC, automated testing Comfortable working in English within an international team Experience integrating LLM APIs (OpenAI, Anthropic, etc.) into production applications Ability to design effective prompts and evaluate AI-generated outputs Team player with strong communication skills and reliability Nice to Have
Knowledge of AI safety, prompt injection prevention, and LLM cost optimisation Fluency in English and Strong Spanish language skills

📌 Software Engineer (Barcelona)
🏢 Product and Technology
📍 Barcelona