Empleos de senior java backend engineer en Madrid

Deutsche Telekom sucht einen erfahrenen Senior Backend Engineer für den Aufbau und Betrieb von produktiven Backend-Systemen im großen Maßstab. Sie arbeiten an verteilten Systemen, API-Entwicklung (Python FastAPI/Flask/Django) und einer mandantenfähigen Infrastruktur hinter KI-Inference-Endpunkten. Sie gestalten Architektur, Observability, CI/CD und...

Tecdata Engineering busca ampliar su equipo con un perfil senior de desarrollo de software en Barcelona, con modalidad híbrida (1/2 días presenciales y remoto). Se valora experiencia en Java 8+, Spring Boot, Kafka y arquitecturas de microservicios.La posición se centra en backend, con uso de MongoDB, JUnit, REST/JAX-RS y herramientas del ecosistema...

Senior Java Backend Developer – Cloud-Native Microservices & CryptographyWe are looking for a Senior Java Backend Developer to lead the design, development, and maintenance of secure, scalable, cloud-native microservices for our Trusted Service Manager (TSM) platform. This role focuses on backend development with Spring Boot 4, cryptographic operations,...

HCL Technologies Limited is seeking a Backend Developer to strengthen our Spain-based team. You will design and implement backend services, compose APIs, and contribute to CI/CD using Azure DevOps.Proficiency in Maven, JPA/JDBC, and databases is expected, with knowledge of OpenShift and scalable architectures. You should be comfortable with distributed...

Pearson is seeking a Senior Software Developer to help design and deliver AI-enabled backend services for our digital learning products. You’ll join an international team to build scalable solutions, implement microservices, and drive DevOps practices across the lifecycle.The ideal candidate has strong Python skills, cloud experience (AWS/GCP/Azure), and a...

Want to put your job search on autopilot? Join our platform, complete a 6-minute AI screening interview, and get auto-applied to 100s of high-paying roles.Sign up now at https://app.Calyptus.Co/auth/candidate/sign-up and let the opportunities come to you.The RoleWe are seeking an experienced Backend Engineer who is excited to build the technical backbone of...

Jobgether SRL, on behalf of a partner company, is seeking a Senior Backend Software Engineer as part of a Future Hiring Program. This remote Europe role is based in Spain and focuses on building scalable backend services for global enterprise clients. You will design, develop, and deploy cloud-based systems using C#, .NET, C++, and related technologies while...

Swiss Re is seeking a Senior Backend Engineer in Madrid to design, build and operate core services powering our enterprise IT ecosystem. You will lead backend development with Golang, implement RESTful APIs and CI/CD pipelines, and support AI-enabled PoCs in collaboration with product teams.You will work on the Federated API, CMDB integrations, and scalable...

Pearson is seeking an experienced Senior Backend Software Engineer to design and maintain backend systems, integrating AI capabilities into scalable services. The role emphasizes ownership, independence, and delivering high‑quality solutions in a fast-moving environment.You will work with product owners and cross-functional teams, contribute to DevOps...

Parser Limited is seeking a Senior Backend Engineer to design and deliver scalable backend services. You will work with TypeScript, Node.Js, Go, and AWS, building high-throughput microservices and real-time data pipelines for an AI-enabled product.You will design event-driven architectures, implement REST/gRPC APIs, and ensure robust observability. The role...

Fliff is building data-driven sports gaming platforms with real-time data pipelines and a focus on correctness, observability, and resilience. We seek a Senior Python Engineer to own core backend systems.You will work on sports data ingestion, transformation, and distribution, collaborating across squads to ensure timely, accurate data feeds and reliable...

Preply is hiring a Senior Full Stack Engineer to drive backend and frontend initiatives in a fast-growing learning platform. You will own key backend services in Python/Django and craft frontend experiences in React/Typescript, while mentoring peers and shaping scalable architecture. The role emphasizes data-driven product development, observability, and...

Lever, Inc. is seeking a Senior Software Developer (Node.Js/Python) based in Spain. You will design, develop, and operate scalable backend services and AI-enabled components, collaborating with AI engineers and cross-functional teams to deliver production-grade APIs.You will own technical decisions, enforce coding standards, and mentor peers while working in...

Earlybird Farm busca un Backend Developer (Python + C++) para trabajar en una arquitectura SOA en Madrid. Es una posición híbrida donde se valorará experiencia real y pensamiento crítico más allá de simplemente construir endpoints.Se requieren al menos 4 años en backend, con experiencia sólida en Python y C++, y familiaridad con Redis y Valkey dentro...

A fast-growing fintech company in Madrid is seeking a Senior Python Backend Engineer to enhance key backend and data projects. This role includes migrating legacy processes to modern cloud-based solutions and designing scalable applications in Azure. Ideal candidates will have over 5 years of experience in Python and a strong background in data management,...

Monzo Bank is looking for a Backend Engineer in Barcelona, Spain. In this role, you will collaborate with a diverse team to enhance the banking platform while working with technologies like Go, Cassandra, and AWS. Strong backend development experience and a product mindset are essential. Benefits include a competitive salary, flexible working hours, and a...

A leading financial technology company is seeking a Senior Software Engineer for its Merchant Data Platform in Spain. The role focuses on managing and delivering on team goals, mentoring junior engineers, and ensuring systems reliability and performance. Candidates should have over 4 years of experience in software engineering with a strong background in...

T-Systems sucht einen Senior Software Developer mit umfangreicher Expertise in Java, Angular und DevOps-Technologien. Sie entwerfen und warten Front-End-, Back-End- sowie DevOps-Lösungen und arbeiten eng mit Product Ownern sowie funktionsübergreifenden Teams zusammen, um Anforderungen zu erfüllen. Sie gestalten Software-Lösungsdesigns, setzen Standards...

Talan Group is seeking an AI-native engineer to contribute to the software development life cycle from requirements analysis to production deployment. The ideal candidate has over 5 years of backend software engineering experience with a strong command of Java, Spring Boot, and AI-assisted tools. This remote position provides the opportunity to work in a...

RingCentral is seeking an experienced Java Software Engineer in Valencia, Spain. You will join the Platform team to develop a high-performance REST API for our Unified Communications service. This role requires solid backend development experience, with the opportunity to work on globally distributed systems maintaining high availability. We offer a...