Empleos de backend engineer nodejs en Madrid

We are bsport. The place to be! bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success. We are bsport. The place to be! bsport is an all-in-one platform combining boutique fitness and...

The Whiteam Consulting is seeking an AI Agent Engineer with at least 3 years of experience to join a project focused on designing, developing, and evolving AI agent-based solutions and LLMs in a cloud environment.The role requires expertise in agent architectures, runtime orchestration, RAG, and backend development with Python, using FastAPI, Docker,...

BESTSECRET is the leading European online destination for premium and luxury off-price fashion. The Group offers its members in 28 countries across Europe a superior brand portfolio complemented by a high-end shopping experience. At the same time, BESTSECRET enables its brand partners to clear overstock at scale with minimum visibility and maximum brand...

TEAM International Services is seeking an experienced Senior Backend / Platform Engineer to design and develop scalable backend APIs and secure microservices for enterprise AI platforms.Si desea saber un poco más sobre esta oportunidad, o está considerando presentar su candidatura, por favor, lea la siguiente información del puesto.You will work on...

Codeway ищет опытного Backend Engineer для разработки потребительских AI-приложений и масштабируемых бэкендов. Ваша работа охватит архитектуру микросервисов, API и интеграцию с облачными сервисами, включая...

SD Worx is seeking a Senior Back-end. NET Developer to join the Corporate Data Management (CDM) team within Data & AI. You will design, develop, and maintain back-end solutions enabling data integration across enterprise systems and supporting Master Data Management initiatives. The role requires hands-on. NET expertise, proactive collaboration with...

A technology recruitment firm is looking for a Senior Back-end Engineer with PHP expertise to develop and enhance payment systems. This remote role offers the opportunity to work in a dynamic environment, focusing on scalability and innovative solutions. Ideal candidates will have over 5 years of PHP experience and knowledge of Domain-Driven Design and Agile...

SQLI in Valencia, Spain, seeks an experienced SAP Commerce Cloud Backend Platform Engineer to own and evolve the backend platform landscape of our SAP Commerce Cloud environment. You will design, implement, and optimize platform services, with a strong focus on automation, security, and performance. You will collaborate with cross-functional teams to drive...

Full-time Company DescriptionT‑Systems is part of the Deutsche Telekom Group, with around 30.000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers’ experience. We trust people: we offer...

T-Systems Iberia, part of the Deutsche Telekom Group, is seeking an Engineer to advance the T Cloud Public platform with a customer-focused approach. You will solve complex cloud backend issues, automate tasks, and work hands-on with hardware in a collaborative, open environment. We value strong Linux security, OpenStack experience, and cloud networking...

Mercadona IT busca un Back Developer Java con experiencia en Spring Boot para liderar migraciones y proyectos de digitalización en España y Portugal. Desarrollarás servicios web RESTful, microservicios y colaborarás con FrontEnd para una integración perfecta. Se valorarán conocimientos en Hibernate, JPA, pruebas con JUnit/Mockito y Jenkins, Docker,...

DKB Code Factory in Valencia invites a proactive QA Engineer to drive testing excellence across backend systems and APIs. You will own and improve the team's testing approach, ensure readiness across environments, and expand automated coverage while collaborating with developers and product stakeholders. You'll analyze failures, share quality metrics, and...

SAANZ busca un Backend Engineer para su plataforma SaaS B2B orientada a la industria, con experiencia en APIs y servicios .NET en cloud. Trabajarás en un equipo de ingeniería distribuido, remoto 100%, con énfasis en rendimiento, fiabilidad y interfaces entre sistemas. Se trabaja en inglés. Se valoran el diseño API REST, microservicios, contenedores...

Gilytics AG is seeking a Backend Lead to own the server-side engine for Pathfinder — handling geoprocessing, spatial data APIs and backend services. This hands-on senior role emphasizes ownership, code quality, and collaboration with Frontend, Dev Ops and GIS Data teams. You will guide architecture, mentoring, and agile delivery while integrating AI...

Corporate Sales Engineer - German (Remote)Spain - Barcelona Germany - Remote Full time R30247 As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn't changed - we're here to stop breaches, and we've redefined modern security with the world's most advanced...

Talantir busca un backend engineer senior para diseñar y construir sistemas agenticos en producción, integrando LLMs y API robustas. El rol requiere pensamiento orientado a producto, autonomía y capacidad de diseñar arquitecturas escalables y fiables. El candidato participará en todo el ciclo: desarrollo, despliegue y monitorización, con colaboración...

Zartis is seeking a Senior Full Stack Engineer (Backend focused) to work on a retail project. You will own, develop and maintain backend services, implement API integrations, and contribute to infrastructure automation in a fully remote setup. The role requires several years of professional software development experience with strong backend expertise in...

Tappx, a fast-growing AdTech firm, seeks a PHP Backend Developer to design, implement, and maintain SSP projects with high scalability. You will lead full product life cycle from conception to production and monitoring, driving technical excellence and reducing debt. You will implement internal tools in PHP, ensure code quality with automated tests and...

T-Systems Iberia is seeking a Lead Senior Backend Engineer to design and maintain scalable backend platform services behind AI inference endpoints. You will architect multi-tenant systems for authentication, API key management, usage metering, billing, and request proxy. Responsibilities include building core services with Python (Fast API), implementing...

The Flex is seeking a Senior Software Engineer (Backend) to join its fully remote engineering team. You will design, develop, and maintain scalable backend systems powering innovative products, collaborating with a talented group of engineers across the lifecycle. We value proactive problem-solvers with strong backend knowledge and practical experience in...