Empleos de backend engineer nodejs en Madrid

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to thrive both personally and professionally. This is how we aim to prevent, stop and cure diseases and ensure...

Xe is seeking a senior backend engineer who owns real problems end-to-end, shaping how the team builds from API design and data modeling to service implementation, production reliability and launch.You'll design and run backend services that move money across multi-currency balances, lead cross-functional delivery with product, compliance, and operations,...

OmniAccess in Palma de Mallorca is seeking a Backend/AI Engineer with 3+ years of experience to design and build cloud-native back-end systems. You will integrate AI capabilities, including LLM-powered features, into the product portfolio and work across the development team. Responsibilities include building robust micro-services, APIs, and data models;...

SKIDATA is seeking a Backend Developer to design and build tailored software integrations that connect third‑party systems with SKIDATA products. You’ll own projects from design through testing and documentation, and work with colleagues across regions.You’ll develop in C#/.NET, work with APIs and interfaces such as REST, SOAP, gRPC, RMQ and sockets,...

Tamarind Intelligence is seeking a Backend Engineer to join its core engineering team in a hybrid role based in Barcelona. You will design, build, and scale backend services using Python and FastAPI, while shaping data storage and processing across SQL/NoSQL systems.You’ll work with AWS, Kubernetes, and emerging AI tooling to push the boundaries of our...

Fusion Consulting, a global IT boutique, seeks a skilled backend engineer to design, develop, test, and maintain services in Rust. You will build REST APIs, model data, and contribute to frontend work with Vue.js/Angular, while supporting AWS Glue pipelines and ETL tasks. You will join a polyglot team, own features end-to-end, and communicate progress...

UST is seeking a Java Developer to join a highly innovative team working within a microservice-based cloud environment in the utility technology sector. You will design, develop, and support secure, scalable Java services, APIs, and integrations that connect critical business systems.The role emphasizes hands-on coding with Spring Framework, Hibernate/JPA,...

N26 is seeking a Backend Engineer in Lending in Barcelona to design, develop, test, deploy, and maintain scalable backend systems in a modern cloud-based microservices environment. You’ll work in a cross-functional fintech team, contributing to secure and well-tested code while staying current with technology trends and collaborating during Get Stuff Done...

Amaris Consulting is seeking a Senior Java Developer to design, develop, and operate scalable SaaS platforms with Java 11+ and Spring Boot. You’ll work in multidisciplinary squads across the full software lifecycle, emphasizing performance, security, and reliability.You will contribute to RESTful services, event-driven architectures, and CI/CD pipelines,...

LeoVegas is seeking a Staff Backend Engineer to lead the design and evolution of distributed systems powering real-time sports data, trading and pricing. You will provide technical leadership while delivering hands-on contribution to improve reliability and performance in a fast-paced, data-intensive sportsbook platform. The role emphasizes architecture...

Avantio, empresa SaaS valenciana, busca un perfil senior para liderar iniciativas tecnológicas impulsadas por IA y la construcción de harness de agentes de código. Participarás en el stack Node.js/TypeScript, con microservicios en Python o Go y bases de datos MongoDB, desplegando en Kubernetes y AWS. Ofrecen contrato indefinido a jornada completa y una...

Forsyth Barnes is seeking a Senior Backend Developer to design, develop and maintain scalable backend services in a fast-paced environment. You will contribute to architecture decisions, write clean, production-grade Go code, and collaborate with cross-functional teams including product managers and frontend/mobile engineers. The role emphasizes...

Infotel in Spain's Barcelona area is seeking a Senior Java Backend Engineer to join our Java Development Competence Center. Reporting to the Tech Lead, you will contribute to the design and development of high-quality software solutions for international clients. You will work on Java 17/21, Spring Boot, microservices, REST APIs, Kafka, and occasional...

Una empresa tecnológica en España busca un desarrollador back-end Python con experiencia en FastAPI o Flask para construir plataformas de software alineadas con la estrategia de IA. Se requiere al menos 5 años de experiencia, habilidad en sistemas distribuidos, APIs RESTful y pipelines de CI/CD. Un entorno flexible que fomenta el trabajo en equipo y un...

Moffatt & Nichol specializes in large complex waterfront infrastructure projects and is actively seeking a Medior Backend Software Engineer to join our Valencia or Algeciras office. You will contribute across the product lifecycle, building cloud-based applications with Angular and Java Spring Boot in a microservices ecosystem.You will collaborate with...

N26 is seeking a Senior Backend Engineer - Engagement to build scalable backend systems for the Grow & Engage domain, shaping the customer journey from signup to premium membership. You will partner with product, tech leads and designers to translate user needs into robust services powering daily engagement. The role blends hands-on development with...

BCNC Group está buscando un Senior Backend Developer Java para liderar la creación de una plataforma logística global. Trabajarás desde cero, definiendo diseño, arquitectura y evolución tecnológica junto a un equipo técnico en un entorno ágil. Se requiere experiencia en Java 21, Spring Boot y microservicios, con foco en rendimiento, concurrencia y...

Marfeel group is searching for a Java Developer to join their innovative team in Barcelona. In this role, you'll develop services and features while navigating existing codebases. Responsibilities include designing scalable systems and collaborating in an agile environment. Ideal candidates have deep knowledge of Java, experience with Spring, and a passion...

Nalanda Global in Madrid, Spain, is seeking a Sr Java Backend Engineer to design and evolve scalable backend architecture using Java and Spring Boot. You will join a product engineering team that leverages AI-powered tooling and modern development practices to deliver robust services.You will own complex backend domains, drive technical initiatives, mentor...

Davidson Consulting España busca un AI Engineer para Barcelona para desarrollar y desplegar soluciones de IA en Azure, con enfoque en backend y APIs. Trabajarás en integración de modelos de IA en producción, RAG y tecnologías generativas, colaborando con Data Scientists y otros desarrolladores. Se valoran proyectos en Intelligent Document Processing...