Empleos de senior java backend engineer en Madrid

Key ResponsibilitiesAs a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office area at Allianz Partners, you will join our central AI team to build reusable AI foundations and production‑grade AI services on a global scale. We are looking for an engineer with strong software engineering fundamentals and hands‑on cloud and DevOps...

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. Since we launched in 2019, we have already achieved the following: We’ve built a community of...

Rechat Inc is seeking an experienced Backend Engineer to architect and maintain core services powering our CRM and Marketing platforms. You will design scalable data models and write high-performance SQL queries, ensuring robust testing and smooth API evolution. The role emphasizes collaboration with Customer Success and cross-functional teams, driving...

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...

Elastic's Observability Streams team is building Elastic's unified data pipeline and the backend services powering Logstash. You will design, build and operate features in Java and Golang, contribute to the OpenTelemetry Collector, and help deliver reliable data routing at scale. This remote-first, globally distributed role demands strong communication, deep...

Key responsibilities As a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office area at Allianz Partners, you will join our central AI team to build reusable AI foundations and production‑grade AI services on a global scale.We are looking for an engineer with strong software engineering fundamentals and hands‑on cloud and DevOps...

Kraken is expanding its Agent Systems team to build AI-powered agents that automate internal workflows across our platform. You will design, prototype, and productionize backend services that reason over user interactions and integrate with multiple internal APIs. We value strong backend fundamentals, distributed systems thinking, and hands-on AI/ML...

bsport is hiring for an OpsEng engineer within the Platform Organization. You will own architecture and delivery of client onboarding and data migrations, and help scale deployments for our branded mobile apps. You’ll design internal tooling and libraries used across engineering, and drive decisions with a focus on scalability and developer experience. We...

Crew buscaAnalista Programador/a Senior para liderar el desarrollo backend con Spring Boot. El proyecto se basa en microservicios, usando Java, JPA/Hibernate y PostgreSQL, con seguridad mediante OAuth2 y JWT. Se valora experiencia en APIs REST y despliegue en AWS, trabajando en un entorno técnico avanzado. El candidato ideal tendrá capacidad para...

Miratech is seeking a Senior Backend Engineer (Golang) to design and build scalable, reliable backend systems. You will develop distributed services, design robust APIs, and implement event-driven architectures, with occasional frontend support in React. The role emphasizes scalability, security, and maintainability, working on integrations with enterprise...

Softtek busca un Backend Developer especializado en Python con Django para desarrollar APIs y microservicios en un entorno híbrido, trabajando en soluciones escalables y de alto rendimiento. La persona participará en diseño de arquitecturas distribuidas, migraciones ORM, y optimización de rendimiento, con base en Madrid y colaboración con equipos...

Are you a versatile, curious engineer who thinks in solutions rather than stacks? At Swiss Re, we build technology with real purpose and we are looking for a Senior Backend Engineer to help shape the next stage of our engineering journey. About The Role Within our IT Resilience unit, we develop the platforms, integrations and capabilities that help Swiss...

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...

Seeking a Senior Java Backend Engineer with 7+ years of experience in Java, SpringBoot, microservices, and cloud platforms like AWS.Requires proficiency in Kotlin/Go, SQL/NoSQL databases, and strong English communication skills.

Rechat, Inc. is building the next generation of enterprise real estate technology. We seek a backend engineer who loves clean architecture and scalable data problems to support our CRM and Marketing platforms. This fully remote role requires deep Node.js and PostgreSQL expertise, with collaboration across cross-functional teams to ship high-impact features...

Lever, Inc. is seeking a Senior Backend Engineer for Payments & Fintech in Spain. You will rebuild and scale the financial systems at the core of a growing global platform, owning architecture for billing, subscriptions, and entitlements. You will lead migrations from legacy systems while ensuring correctness, reliability, and auditable financial records....

Aircall is seeking a Senior Backend & AI Engineer responsible for designing, developing, and deploying critical AI features. With a focus on LLMs, you will be involved in building chatbots and automated content generation tools. The position emphasizes collaboration, innovation, and high-quality coding practices in a fast-paced environment. Join Aircall to...

Barcelona, Spain · Full-time · Fully office-based €65,000–€85,000 gross per year Candidates must already be based in Barcelona. Visa sponsorship is not available. Build the systems behind AI-powered email marketing. Migma is building an AI platform that creates and sends on-brand email campaigns end to end. We are a two-person founding team in...

airapps is seeking a Backend Software Engineer to design and build server-side components in a dynamic environment. This is a fully onsite position based in Lisbon, requiring strong collaboration with cross-functional teams. The ideal candidate will have 5+ years of experience with Node.js, TypeScript, and cloud platforms like GCP. Benefits include top-tier...

Quik Hire Staffing is seeking a Senior Backend Engineer (Node.js, AWS) for a fully remote, full-time role. You will design, develop, and maintain scalable backend services for a high-traffic platform, collaborating with cross-functional teams to deliver low-latency solutions in a cloud-native environment. You will design and deploy Node.js microservices...