Empleos de backend engineer nodejs en Barcelona

Davidson Consulting España busca un/a AI Engineer para un proyecto de Inteligencia Artificial en Barcelona, orientado al desarrollo backend y APIs sobre Microsoft Azure. Integrar modelos de IA en producción, soluciones basadas en IA Generativa, LLMs y RAG, y colaborar con Data Scientists y desarrolladores para entregar soluciones escalables.La posición...

HSP Group in Barcelona is seeking a Lead Backend Engineer responsible for the technical direction of Gateway HR. The ideal candidate should have over 7 years of backend development experience and a strong technical leadership background. Responsibilities include evolving the architecture for scalability and leading external teams. This remote role offers the...

Spendesk seeks a Backend Software Engineer (IC3) to join the AI & Data Products squad in Barcelona, with a hybrid work setup. You will design, build, and operate backend services powering AI-native features, turning predictive logic into reliable product experiences and exposing them via clean APIs.You will collaborate with ML engineers and product teams to...

Preply is looking for a Senior Full Stack Engineer in Barcelona to help shape the future of our learning platform. You will balance backend focus (Python/Django) with frontend work (React/Typescript), driving data-informed product decisions and scalable architecture.You’ll mentor peers, raise engineering standards, and partner with product, data, and UX...

REVER AI (YC S22) is seeking Software Developers for both junior and senior roles in Barcelona. You will tackle challenging problems in the ecommerce sector, building innovative products that enhance the return experience for shoppers. Candidates should possess strong product sense and adaptability, with a degree in Engineering, Computer Science or similar,...

Titan Operating System, based in Barcelona, seeks a Senior Backend Engineer - Go to design, develop, and maintain scalable backend infrastructure powering our products and services. You will ensure security, reliability, and performance while integrating cutting-edge technologies to support growing user demand.You will collaborate with cross-functional...

Allianz Technology in Barcelona is looking for a seasoned Java Developer to modernize legacy systems and develop innovative insurance products. Join a dynamic team leveraging Java, Spring Boot, and Agile methodologies to enhance business solutions.With a hybrid work model, enjoy benefits including healthcare, a company bonus scheme, and career development...

Parser is a boutique technology services and consulting firm delivering AI-enabled and data-driven solutions across Europe and the Americas. As a Senior Backend Engineer, you will own backend services powering a new conversational AI product, designing high-throughput microservices and real-time pipelines while integrating LLM-driven tool-calling...

Titan Operating System S.L. (Titan OS) in Barcelona is seeking a Senior Backend Engineer - Go to design, develop and maintain scalable backend services powering our products.You will work with front-end, DevOps and product teams to optimize performance, ensure security, and deliver robust APIs. 6+ years of backend experience, strong Go, SQL/NoSQL, and cloud...

Davidson Consulting España busca un Senior Full Stack Developer con sólidos conocimientos en Inteligencia Artificial para desarrollar e integrar soluciones de IA en entornos de producción. Trabajarás en un equipo Agile Scrum, colaborando con científicos de datos e ingenieros de IA, enfocando el desarrollo backend y la IA de extremo a extremo.Se...

Senior Backend Engineer (m/f/d), Driver Onboarding | Freenow* Navigation* Inhalt* Fußzeile* SafetyDownload the app## **YOUR DAILY ADVENTURES WILL INCLUDE:*** Own the Feature, Own the Code – feel responsible for what you create. It all starts with bringing in your feature ideas, goes over development, testing and ends in deploying your code and monitoring...

Tamarind Intelligence in Barcelona, Spain, or fully remote within a CET time window, seeks a backend engineer to own a critical production system, help shape the road‑map, and experiment with new ideas. You will work on a high‑impact product with strong ownership and cross‑team collaboration.You will implement code, review, test, and diagnose complex...

CNT Management Consulting is a leading SAP consulting firm, offering 100% flexible working time and home office options. The role focuses on SAP ABAP backend development, ABAP OO expertise, and collaboration with SAP UI5/Fiori and BTP teams on client projects across Europe and the USA.Ideal candidates bring 5+ years of SAP ABAP experience, strong consulting...

Clarivate is seeking a Lead Software Engineer to join the Life Sciences team in Barcelona. You’ll design, build, and maintain scalable Java backend services within a microservices architecture for Pathfinder, a greenfield product aimed at delivering data-driven insights in life sciences.You’ll lead engineering best practices, mentor engineers, and...

Dow Jones & Company, Inc. seeks a Staff Data Engineer to design and deliver scalable data platforms powering analytics and product experiences.You will balance hands-on development with technical leadership, guiding architecture, and cross-team initiatives within the Technology group. You will mentor teams, drive data quality improvements, and collaborate...

SEREM Consultoría Empresarial busca un Backend Developer Java con experiencia para un proyecto en Barcelona, centrado en microservicios y APIs REST, en un entorno Agile/Scrum. Se valora integrar tecnologías frontend, principalmente Angular, y conocimientos de Kafka, MongoDB y Spring Boot.La posición es híbrida, con 1-2 días en oficina y el resto en...

New Relic is seeking a backend engineer to design, build, and operate JVM-based microservices (Java/Kotlin) powering massive telemetry pipelines and observability features. You will own services end-to-end, implement asynchronous patterns, and contribute to a scalable, resilient platform used by engineers globally.The role emphasizes strong collaboration,...

SEREM Consultoría Empresarial busca un Backend Developer Java con experiencia para un proyecto en Barcelona, centrado en microservicios y APIs REST, en un entorno Agile/Scrum. Se valora integrar tecnologías frontend, principalmente Angular, y conocimientos de Kafka, MongoDB y Spring Boot.La posición es híbrida, con 1-2 días en oficina y el resto en...

Overview En Barcelona, una multinacional del sector moda busca un Backend Java con al menos 4 años de experiencia para desarrollar servicios orientados a microservicios, utilizando Spring Boot y Kafka. Integrarás con un equipo técnico y trabajarás en un entorno híbrido, con incorporación inmediata y una retribución acorde a tu experiencia. El rol...

Lingo in Barcelona seeks a Senior Software Engineer (Backend) to design, build, and optimize backend systems handling real-time biosensor data. You will develop scalable microservices, APIs, and event-driven integrations across cloud deployments, collaborating with Product, Platform/SRE, and Data/ML teams.You will mentor junior engineers, participate in...