Empleos de backend engineer nodejs en Madrid

Clarivate Analytics seeks a Lead Software Engineer - AI Product development in Barcelona to build scalable AI-powered software using Python, cloud platforms, and LLM-based applications. You will join a small, skilled team reporting to the Engineering Manager and shape technical direction in a hybrid environment. Ideal candidates have 7+ years in software, 4+...

Overview In this role you will drive AI-powered feature development for ClickHouse Cloud, spanning backend inference services to user-facing interfaces. You will join a high-performance database platform and help integrate AI capabilities that empower users to extract value from their data. You will shape end-to-end implementations, from inference APIs to UI...

Zemsania busca un Backend Engineer Senior Node para un importante grupo tecnológico con sede en Barcelona. Trabajarás en un equipo internacional, desarrollando servicios backend de alta disponibilidad y APIs REST sobre AWS, con enfoque en IA, cloud y entornos Agile. Se requiere mínimo 3–5 años de experiencia, Node.js, REST, SQL/NoSQL y inglés B2....

Linde Material Handling in Barcelona is seeking a highly skilled AI/ML engineer to design, build, and deploy innovative data analytics solutions for internal and external customers. You will apply ML and generative AI models to end-to-end solutions and build MLOps on cloud platforms. The role collaborates with data scientists, engineers, and IT to optimize...

Overview In this role you will shape a high-performing, distributed backend platform that handles recipe execution, events, and jobs. You’ll work with a cross-functional team to scale and secure complex systems, balancing performance, durability, and concurrency. You’ll contribute across the full development lifecycle, improving the core engine and...

N26 is seeking an experienced backend engineer to design and own end-to-end solutions for its global banking platform. You will help build high-availability services, craft scalable infrastructure, and drive production deployments from concept to code to cloud. You will collaborate with small autonomous teams, apply Domain-Driven Design, and maintain quality...

bsport is seeking a Senior Backend Engineer to join the Community & Engagement team, building backend systems powering marketing and communications for studios worldwide. You will work on agentic AI initiatives, the marketing suite, and data foundations to enhance scalability and channel integrations. You will design and evolve backend architectures,...

TUYÚ Technology busca un/a Backend Developer para un proyecto internacional dentro del Sector Seguros. Trabajarás con un equipo global y tecnologías punteras en un entorno Agile. Se valorará experiencia en desarrollo backend con Java, así como en Spring Boot, Quarkus y MongoDB. También se requiere buen nivel de inglés para el trabajo en un entorno...

Preply is seeking a Staff Backend Engineer in Barcelona to shape the technical roadmap for AI-enabled, media-rich learning experiences. You will own end-to-end initiatives, evolve architecture for scalable systems, and mentor senior engineers across product, engineering, and business partners globally. You will drive developer experience, lead RFCs and...

Preply is seeking a Senior Engineer to join the Engineering Team in Barcelona to develop backend features with Python/Django, and to build integrations with third-party vendors for an AI-enabled learning platform. You will collaborate with Product, Design, Data Analytics and Engineering to deliver high-quality features through CI/CD, maintain robust testing,...

Frekuent is building the engine behind payments and loyalty for unattended environments. We seek a backend engineer to own features end-to-end with AI-assisted workflows, collaborating with Product and Data teams to deploy scalable, reliable systems.Join a lean, senior team that moves ideas from Slack to production quickly, using AI tools to accelerate...

Airalo is hiring a backend engineer to build and maintain scalable services for a global customer base. You will implement robust APIs, optimize database queries, and contribute to a modular, service-oriented architecture. The role requires 3-5 years in backend development with PHP, strong OOP knowledge, and experience with Laravel or Symfony. You will work...

Sngular busca un Ingeniero/a Senior Java con experiencia en Valladolid para liderar el desarrollo de software backend robusto, escalable y mantenible. Trabajarás con Java, Spring Boot y Arquitectura Hexagonal, aplicando DDD y explorando IA para potenciar el desarrollo y la resolución de problemas.Además, colaborarás con equipos multidisciplinares,...

Liferay, Inc. is seeking a backend-focused engineer with strong frontend architecture understanding to join the Frontend Infrastructure team.You will design, build, and optimize backend frameworks, tooling, and delivery pipelines powering the frontend ecosystem, while maintaining robust server-side practices and a broad view of client‑side consumption. You...

Roche in Barcelona, Spain, seeks a senior software professional to own the full software development lifecycle for high-performance C# applications while serving as Scrum Master. This hybrid role (75/25) will drive agile practices across cross-functional teams and leverage AI-assisted tools to boost code quality and team efficiency. You will design 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...

Factorial is seeking a Senior Software Engineer to join our Data Ops team. You will own the backend architecture of internal sales, invoicing, and billing applications, building resilient, scalable APIs and cloud workflows that power finance and customer experiences. You’ll collaborate with design and product, integrate payment platforms like Stripe or...

Universia España busca un/a engenyer de software per ajudar a construir la plataforma darrere de sistemes de drons autònoms sincronitzats. El rol combina desenvolupament de software de producte, sistemes en temps real, simulació i eines robòtiques, amb enfocament backend i integració de components.Treballaràs en software que ajuda els operadors a...

Pluxee is a global player in employee benefits and engagement that operates in 28 countries. You will join the Payments Squad as a Senior Backend Engineer, building the engine that moves money globally.We design resilient, mission-critical systems where transactional precision, idempotency, and fault tolerance are at the heart of everything we do. You will...

MindMatch busca un Senior Backend Developer para Valencia, formando parte de un hub de IA Generativa para el sector financiero. Diseñarás y construirás servicios backend, APIs y pipelines en Azure, con foco en rendimiento y seguridad. Trabajarás con Node.js o .NET 8, Azure OpenAI y herramientas de orquestación, en un entorno regulado y de alta...