Senior Backend Engineer Jobs in Barcelona

This year marks 10 years since we launched the idea that simplifying our customers lives is possible by offering an innovative solution that allows them to easily subscribe to manage and switch all types of contracts through a unique and intuitive platform.In that time we have supported more than 1....

This year marks 10 years since we launched the idea that simplifying our customers lives is possible by offering an innovative solution that allows them to easily subscribe to manage and switch all types of contracts through a unique and intuitive platform.In that time we have supported more than 1....

This year marks 10 years since we launched the idea that simplifying our customers lives is possible by offering an innovative solution that allows them to easily subscribe to manage and switch all types of contracts through a unique and intuitive platform.In that time we have supported more than 1....

We are on the lookout for talented Junior Backend Engineer to join our 2026 Tech Grad Program on our journey to always deliver amazing experiences. Our Tech Grad Program offers you a unique environment for you to learn and develop your skills and to contribute to the development of our cutting-edge...

JOB DESCRIPTION:SeniorSoftwareEngineer(Backend)ABOUT LINGOLingo is building acuttingedgedigital health platform that fuses continuous biosensor datahighperformancebackend engineering and advanced analytics to help people live healthier longer fuller lives. Our systems process massive volumes ofrea...

JOB DESCRIPTION:iOS EngineerABOUT LINGOLingo is building acuttingedgedigital health platform that fuses continuous biosensor datahighperformancebackend engineering and advanced analytics to help people live healthier longer fuller lives. Our iOS app is a critical part of that experienceconnecting...

Your missionJoin the Revolution in Hospitality Tech!As a Senior Backend Engineerat Bookboost youll be responsible for designing developing and maintaining the server-side logic that powers our applications. Youll work closely with front-end engineers product managers and other stakeholders to delive...

Syntax is a leading Managed Cloud Provider for Mission Critical Enterprise Applications and has been providing comprehensive technology solutions to businesses of all sizes since 1972. Syntax has undisputed strength to implement and manage ERP deployments (Oracle SAP) in a secure and resilient priva...

Were on a mission to make money work for everyone.Were waving goodbye to the complicated and confusing ways of traditional banking.After starting as a prepaid card our product offering has grown a lot in the last 10 years in the UK. As well aspersonal and business bank accounts we offer joint accou...

We are looking for a Senior Backend Engineer with a strong GenAI background to join our team and work 100% dedicated on a strategic project for one of our top clients in the pharmaceutical sector.In this role you will design and build advanced backend and AI-driven systems contributing to the evolut...

We are Merlin Digital Partner! A leading IT and digital headhunting company who stands out from the crowd boasting over a decade of experience.Weve successfully collaborated and played a pivotal role in the growth of industry heavyweights such as Wallapop Glovo Banc Sabadell and Factorial among othe...

Ready to make travel easier for millions Airalo is the worlds first and largest eSIM store helping travellers stay connected seamlessly in over 200 countries and regions. We trust our teams to take ownership put customers first and do work that has a real impact every day. Whats in it for you Airalo...

About the team and your mission: In this role you will help us move towards our vision: patients have easy universal access to their health data through an insights-driven experience that helps them live healthier longer lives. As a Backend Engineer on our Health Profile team you will work on distri...

Description Senior Backend Engineer (LLM / AI Experience)Hybrid Tech Team Full-time Barcelona SpainIn a few wordsBuild and scale backend systems powering conversational AI & digital humansHands-on senior role balancing architecture production codeWork deeply with LLMs RAG pipelines and real-time...