Empleos de senior java backend engineer en Zaragoza

Ad4octogono busca un Desarrollador Backend Senior con Java para unirse a un equipo que trabaja 100% de forma remota. Deberá diseñar, desarrollar y mantener APIs RESTful y microservicios robustos, asegurando rendimiento y escalabilidad.Se valora experiencia en Hibernate, SQL/NoSQL y buenas prácticas de código, revisión de código y trabajo en un entorno...

Sinch, a Customer Communication Cloud company, is hiring a Senior Java Software Engineer for the Agentic Orchestration Platform. You will design and own core components coordinating AI agents and multi-channel communication at scale. You will work with a small senior team, have autonomy, and tackle non-deterministic testing, latency, and cost challenges...

A leading software provider in the automotive industry is looking for a seasoned backend engineer to join their remote team from Spain. You will develop and maintain Spring Boot services, work with event-driven architectures using AWS, and ensure secure API integrations. Ideal candidates have over 8 years of experience in backend development, particularly...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Backend Engineer - Payments & Fintech based in Spain. This is a high-impact backend engineering role focused on rebuilding and scaling the financial systems at the heart of a rapidly growing global platform.You will own...

Elastic, the Search AI Company, seeks a Senior Software Engineer for the Integrations Team to enable Elastic inside the AI ecosystem. You will build and maintain the MCP server, agent skills platform, and third-party integrations, working with Go and other languages while collaborating with product teams and partners. You will contribute to the Elastic CLI,...

W Hunt España está buscando un desarrollador con experiencia en Java, Spring Boot y Apache Spark, orientado a entornos Big Data y Cloud (Azure). El perfil se orienta al desarrollo backend y a la participación en proyectos de datos.Las funciones incluyen desarrollar soluciones en Java con Spring Boot y APIs REST, colaborar en infraestructuras en Azure,...

UST is seeking a Java Developer to join a highly innovative team working within a microservice-based cloud environment in the utility technology sector. You will play a key role in designing, developing, and supporting secure, scalable, and maintainable Java services, APIs, and integrations that connect critical business systems and internal tools. You will...

Jobgether SRL, listed on behalf of a partner company, seeks a Senior Software Engineer (Node.js/Python) based in Spain to build backend and AI-enabled systems powering an innovative mobility platform. You will design, develop, and operate scalable web services and APIs using Node.js, TypeScript, and Python, owning architecture and working with AI engineers...

Intellias is partnering with a Fortune 100 Midwest-based industrial manufacturer to modernize cloud-based services and data products used globally. The role is remote from Spain, requiring a 6-hour overlap with US Central Time. You will design, build, and deploy scalable backend services in production, leveraging Scala, Akka/Pekko, AWS, and event-driven...

We're looking for a Senior Java Engineer to join our team in Malaga, Spain in a remote working mode. In this role, you will develop and enhance backend services supporting MLS Touch and MLS Client, two mobile applications enabling real estate professionals and their clients to collaborate seamlessly throughout the property search and transaction...

Make an impact with NTT DATAJoin a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.Your day at NTT DATAThe Networking...

Elastic, the Search AI Company, is seeking a Senior Software Engineer for the Elasticsearch - Distributed Systems team. You will tackle deep distributed systems challenges in how nodes communicate, data indexing, allocation and management across nodes, with a focus on the Serverless offering. You will own projects end-to-end, collaborate across teams, and...

Grupo TECDATA Engineering busca un Senior Backend Developer para un proyecto de larga duración en Madrid, con enfoque en desarrollo backend y evolución de sistemas existentes. Se valorará experiencia sólida en Java y Spring Boot, APIs REST y arquitecturas event-driven, además de historial trabajando con sistemas complejos y legacy.El perfil debe aportar...

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...

Join our expanding engineering team! We're actively recruiting a Senior Backend Engineer to help scale M-KOPA Mobility, our fast-growing e-mobility business. This is an initial 12-month Fixed Term Contract, with the potential to extend or transition into a permanent role. Build the event-driven microservices that power clean, affordable transport for riders...

M-KOPA is seeking a Senior Backend Engineer to scale M-KOPA Mobility. You will build event-driven C#/.NET microservices powering a growing e-mobility financing platform across Africa. The 12-month Fixed Term Contract can extend or become permanent, with fully remote work across UTC -1 to UTC +3.You will own services end-to-end, collaborate on architecture,...

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...

Playtomic is seeking a Senior Backend Engineer to build robust, scalable APIs and services. You will own your domain end-to-end, balancing technical excellence with business impact while collaborating with product, design, and frontend teams.You will work in a fast-paced, pod-based environment, shipping production-ready software and integrating AI-assisted...

Nuitée is hiring Senior Product Engineers to join Connect, the heart of our platform. Connect unifies hotel supply into a single clean API that partners build on, enabling real-time pricing and inventory at scale.You’ll own the full lifecycle, move fast from idea to production, and ship iterations that matter with measurable impact on partner traffic and...

Lever, Inc. is seeking a Senior Backend Software Engineer for its Future Hiring Program, based in Spain. You will join a forward-thinking engineering team delivering high-impact software for global enterprise clients across diverse industries. Working remotely within Europe, you will contribute to design, development, and deployment of scalable backend...