Empleos de senior backend java engineer remote en Madrid

Santander Auto Software is building a new global software platform. We seek back-end engineers with Java or Kotlin, Spring Boot, and cloud experience to own solutions in a greenfield, AWS-based environment.Join a 100% tech-driven team shipping cloud-native software across Europe, with a strong culture of ownership and autonomy. Remote-friendly within Europe,...

BIP en Madrid busca ingenieros backend con .NET y Azure para crear APIs, microservicios y soluciones cloud-native. Trabajarás con AKS, Azure Functions, Logic Apps y CI/CD, integrando IA en el flujo de desarrollo para generar, refactorizar y testear código.Se valorará experiencia con IA, contenedores, seguridad y observabilidad, y capacidad para diseñar...

Octopus Energy is looking for a Backend Engineer to join a cross-functional team delivering high-impact MVPs for our sites and apps. You will collaborate with international teams to build scalable Python/Django services and APIs, focusing on business needs and rapid delivery.You will own modules such as private area, billing, onboarding, and dashboards,...

Una empresa de tecnología en expansión busca un/a Backend Engineer para unirse a su equipo de desarrollo en Madrid, Barcelona, Gijón o Pamplona. El rol implica diseñar y desarrollar APIs en Node.Js y FastAPI, definir estructuras sólidas entre microservicios y optimizar el rendimiento. Se requiere experiencia en Node.Js y Python, además de conocimientos...

Una empresa de tecnología busca incorporar un/a Backend Python Engineer para un proyecto freelance de 3 meses. Las funciones incluyen mantener y mejorar un servicio backend con FastAPI, desarrollar funcionalidades, y garantizar una buena arquitectura. Se requiere experiencia con Python, FastAPI y bases de datos relacionales como PostgreSQL. Esta posición...

EDreams ODIGEO is seeking a Backend Architect to lead the technical evolution of one or more backend microservices and mentor senior engineers. You will collaborate with multiple teams across a large e-commerce platform serving millions of users daily and work closely with product and business stakeholders to shape technical strategy.You will leverage Java,...

At OneSpan, we specialize in digital identity and anti-fraud solutions that create exceptional and secure experiences.We are looking for an experienced Senior Backend Engineer to join our Barcelona-based backend team and drive product features from conception to production with customer value at the forefront. You'll own the delivery side of our platform...

At Naphora Games Group, we're building more than games, we're building a global team of ambitious, driven people who are hungry to learn, experiment, and raise the bar for the next generation of games. We collaborate openly, move fast, and challenge ourselves every day to build better, smarter, and faster. Our goal is to create world-class games that players...

UST is seeking a Senior Software Engineer (Java & Spring) to build scalable, cloud-native applications in a collaborative Agile and DevOps environment, joining a strategic banking project in Madrid.Hybrid model requires attendance at central Madrid offices 3 days per week; you will design, develop, test, deploy, and monitor business-critical services,...

Nextlane is seeking a Senior Backend Engineer in Vigo, Spain, for hands-on cloud-native backend development. You will design and maintain scalable services in C#/.NET Core, build secure REST APIs, and ensure quality with tests and architecture compliance.You will work closely with Tech Leads, frontend, QA, and DevOps in an Agile environment, with remote work...

Job DescriptionJob Title:Python DeveloperJob Type:ContractLocation:RemoteJob Summary:In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.Key...

Flight Centre Travel Group in Barcelona seeks a Software Engineer to build AI-native products powering travel experiences for clients worldwide. You will join agile squads, own backend services, and contribute to a Rails stack while advancing in a global, collaborative environment.Responsibilities include developing LLM-powered features, implementing CI/CD,...

Greinfort Solutions S.L. busca un desarrollador de backend para integrarse en el equipo de I+D y avanzar en el desarrollo de servicios Greinfort y futuras líneas de negocio.Se valorará capacidad para actuar como puente entre el equipo técnico y el cliente, trasladando valor de negocio y apoyando en reuniones con clientes y demostraciones técnicas. La...

Pearson is seeking a highly autonomous Senior Software Developer to join our AI-enabled English language learning platform. You’ll design and deliver scalable backend services and APIs, integrate AI models, and guide the full software lifecycle with DevOps and Clean Code practices.Based in a hybrid setup, this role requires strong collaboration with...

Pearson is seeking a highly autonomous Senior Backend Engineer to design, implement, and scale backend services for AI-enabled digital products. You will collaborate across teams to define requirements and timelines while advancing DevOps, Clean Code, and DDD practices.The role emphasizes secure, scalable architectures and mentoring junior engineers. The...

GMV in Tres Cantos, Spain is seeking a passionate back-end developer for its Space Traffic Management projects. The role involves developing new functionalities in a microservice architecture and requires expertise in Java or Python, along with Linux and Docker skills. GMV offers flexible working conditions, personalized career development, and a well-being...

IndicatorLab Inc busca un perfil senior de ingeniería de software que actúe como referente técnico del Squad de Prevención de Fraude, diseñando y desarrollando soluciones backend con Java y Spring Boot.Liderar técnicamente al squad, definir APIs, integrar con sistemas internos y proveedores externos, y promover la calidad mediante testing, revisión de...

ClickHouse is seeking a skilled software engineer to build AI-powered features across the full stack, from backend inference to intuitive frontend interfaces within the ClickHouse Cloud platform.You will create robust APIs, integrate AI/ML models, and maintain ecosystem integrations while ensuring production-grade quality with monitoring and observability. A...

UST, a multinational company based in North America, is seeking a Mid-Senior Java Engineer to work on exciting projects within the banking sector. The position offers a hybrid work model in Madrid and involves designing, developing, and maintaining IT services.Ideal candidates should possess a degree in Computer Science or a related field with extensive...

Knowmad Mood, una empresa líder en transformación digital, busca un desarrollador/a senior backend con Kotlin para un importante cliente del automovilístico. Trabajarás 100% remoto, diseñando, desarrollando y manteniendo servicios backend críticos y evolucionando la arquitectura de la plataforma.Se exigen experiencia avanzada en Kotlin, Spring...