> Markdown version of [/jobs/ext/3047655-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3047655-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer - **Company:** Nuevo - **Location:** Barcelona, Spain - **Salary:** €70,000.0 - €85,000.0 - **Contract:** Permanent contract - **Skills:** HTML, Java (Programming Language), PHP (Programming Language), Amadeus CRS, Computer Programming, Payment Systems, Groovy, Java Virtual Machine (JVM), Node.Js, Object-Oriented Software Development, Sabre (Computer System), Backend, Web Technologies, Front End Software Development, Restful APIs - **Published:** September 24, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role + Proficient in object-oriented analysis and design + Solid Java/JVM or equivalent programming skills (3+ years) + You're versatile and enjoy learning new technologies and languages + You're a team player + EU passport or a permanent working visa that allows you to legally work in Spain. Nice to have (but not mandatory) + Knowledge of Node.js, Groovy, PHP + Front end programming skills: HTML, CSS & JavaScript - no need to be super proficient, but someone who can also do a little bit of front end will be highly valued! ## Description Who you are You are an experienced Backend Engineer, who is happy to work independently in a group. You enjoy sharing your expertise with junior team members and have a good sense of humour. Developing new product lines is intriguing to you because you are full of ideas. This will be your role + Implement existing product lines and help us develop new ones! + Integrate our product lines with Airlines' reservation and payment systems (Sabre, Amadeus, Navitaire) + Develop REST APIs + Support new business domains and use cases + Personalise our existing product lines to adapt to our partners needs + Mostly backend but frontend knowledge will be a plus