105 backend developer English-speaking jobs in Barcelona

Senior Backend Developer for Projects/CRM. Join a team building intuitive software to simplify business operations. Requires passion, creativity, and commitment to create cutting-edge products.

You will contribute to architectural decisions, establish best practices, and ensure that backend systems ... market operations.Your responsibilities:You will be responsible for designing, building, and evolving backend ... market.With over 900 employees, we are strengthening our position as a European market leader.As a Senior Backend ... aligned with the company's strategic objectives.Your mission includes:Designing and implementing scalable backend ... Master's degree in Computer Science, Software Engineering, or equivalent practical experience.5+ years of backend

improvement and innovation.Curiosity and a genuine interest in emerging AI technologies and modern backend ... LiteLLM, LangChain, or similar frameworks.Experience developing enterprise-scale SaaS or distributed backend ... well-structured, efficient, and testable Python code for production services, experimentation, and internal developer ... SkillsExperience working with multiple LLM providers (OpenAI, Anthropic, Qwen, open-source models).Background in developer

Developer (Ruby) to join our growing team. ... This role is a blend of complex backend development, bleeding-edge application platforms and conversational ... ranked us the #1 best company for remote workersResponsibilitiesWe are looking for an exceptional Senior Backend

Developer (Ruby) to join our growing Engine team. ... ranked us the #1 best company for remote workersResponsibilitiesWe are looking for an exceptional Senior Backend ... foreseen.RequirementsQualifications / Experience / Technical SkillsStrong experience in building scalable distributed backend

Developer (Ruby/Go) to join our growing Engine team. ... ranked us the #1 best company for remote workersResponsibilitiesWe are looking for an exceptional Staff Backend ... automatization.RequirementsQualifications / Experience / Technical SkillsStrong experience in building scalable distributed backend

Developer (Ruby/Go) to join our growing Engine team. ... ranked us the #1 best company for remote workersResponsibilitiesWe are looking for an exceptional Senior Backend ... foreseen.RequirementsQualifications / Experience / Technical SkillsStrong experience in building scalable distributed backend

In this role, you will be responsible for building API interfaces and backend infrastructure and collaborate ... best company for remote workersResponsibilitiesWe are looking for an exceptional Senior Ruby on Rails Developer

complex systems, making technical decisions that improve scalability, reliability, maintainability, and developer ... Our team builds scalable, resilient products using Python/Django on the backend and React on the frontend ... features using Python/Django, supporting the creation of new backend services as well as design, create ... full-stack role, with approximately 60% of the work focused on backend development and 40% on frontend ... drive customer and business impact, including, but not limited to:Back-end Development: Develop and own backend

work in teams delivering innovative features that serve our customers.We are seeking a collaborative Backend ... partner closely with Product Owners and Designers to translate user needs into the seamless, scalable backend

Develop, test, and maintain software in the Incentives team. Requires experience with JVM languages and Spring Boot in large-scale systems, understanding of microservices, and knowledge of relational/non-relational databases.

Develop, test, deploy, and maintain software in the Financial Empowerment domain. Requires JVM language and Spring Boot experience in large-scale systems, understanding of microservices, and database knowledge.

our Cortellis Drug Discovery Intelligence (CDDI) team in Barcelona, where you'll work on high-impact backend ... collaborate closely with distributed engineering teams to design scalable systems that combine strong backend ... Design, develop, and maintain scalable backend services and APIs within microservices architectureBuild ... engineers or contributing to technical directionHands on experience building and maintaining scalable backend ... requirements into robust technical solutionsWrite clean, well-tested, and well-documented code following backend

/ or anomalies.Mandatory Skills:Salesforce Expertise: +3 years of proven experience as a Salesforce Developer ... plus (capable of handling business communication in intercultural environments).Salesforce Platform Developer

-Experience building developer platforms, internal developer portals, or AI development tooling. ... -Collaborate with cross-functional teams to improve developer experience and platform capabilities.

About The OpportunityHi, I'm Oussama Salimi, the Engineering Manager at N26, and I am looking for a Backend ... every critique of a problem with a practical proposal for its solution.Skills:Strong proficiency in backend

passionate about collaboration and sharing knowledge, as well as working with a high degree of autonomy.As a Backend

love to speak with you if you have strong skills in Python backend engineering, cloud ecosystems, and ... We have deep expertise in backend development, AI/ML, cloud services, and data engineering, and we would ... least 7 years of professional software engineering experience, including at least 4 years developing backend ... services, or adopting open-source and LLM-driven technologies.Designing, developing, and maintaining backend ... engineers.Experience working in cloud environments (Azure or AWS), including deploying or integrating backend

love to speak with you if you have strong skills in Python backend engineering, cloud ecosystems, data ... We have deep expertise in backend development, AI/ML, cloud services, and data engineering, and we would ... least 7 years of professional software engineering experience, including at least 4 years developing backend ... services, or adopting open-source and LLM-driven technologies.Designing, developing, and maintaining backend ... engineers.Experience working in cloud environments (Azure or AWS), including deploying or integrating backend

Develop new functionalities using .NET and WPF for a core platform managing industrial devices. Participate in the full software development life cycle within a team focused on industrial automation. B2 English level is mandatory.