Empleos de senior java backend engineer remote en madrid

Upsun is hiring a Software Engineer to build and maintain backend billing services. You will own components handling invoices, taxes, usage reporting, and integrations with external systems, impacting customers across multiple products and currencies.Join a distributed team across Europe, North America, and India, with a culture of collaboration and modern...

Lever, Inc., on behalf of a partner company, is seeking a Backend Engineer, PHP based in Spain to design, build and scale backend services within a large microservices ecosystem. You will own features end-to-end and contribute to architectural decisions in a fast-moving environment. You’ll work closely with frontend, mobile, design, data and platform...

bsport is an all-in-one platform for boutique fitness and technology. As a Staff Backend Engineer in Barcelona, you will shape the technical direction of our product and engineering organization, joining multiple teams across domains. You will design scalable services, own cross-team challenges from framing to implementation, mentor engineers, and help...

DNA325 is a remote-first AI-native product company building fast, reliable backend layers that power AI interactions in email, notes, and task tools. You will join a small, high-talent team shipping production-grade services and orchestration for model-driven features.You’ll own inference pipelines, optimize latency, and ensure observable APIs across...

Talan – Positive Innovation busca un Desarrollador Full Stack Senior para diseñar y construir una nueva aplicación de monitorización de emisiones, distribución y procesamiento. Se trabajará en un entorno ágil, empleando herramientas modernas y prácticas de IA para acelerar el SDLC. El candidato ideal cuenta con más de 5 años de experiencia en...

Capitole keeps growing, and we want you to grow with us! We are seeking a Senior Full-Stack Developer (M/F) to join an international project.You will design, develop and maintain scalable full-stack applications using Java, Spring Boot, and Angular, contributing to architecture and DevOps practices. The role requires 3+ years of experience, strong...

About the teamThe AI/ML Engineering team builds and operates ClickHouse's AI and machine learning products end-to-end. This includes the Agentic Data Stack, AI Functions, chDB, the in-Console copilot, and the AI/ML partnerships that distribute them — together with the shared components and expertise that let every other ClickHouse team ship AI in the...

UST, a multinational technology services company, is seeking a Senior Java Engineer (AWS) to join a global delivery team in Madrid. You will design, build, and maintain scalable software, working within a DevOps model and contributing to a complete SDLC. You will engage with APIs, REST services, and distributed architectures (SOA/MSA), apply SOLID...

Mercanis is building the Agentic AI Procurement Suite that powers the procurement of tomorrow, digital, transparent, and intelligent. We are seeking a Backend Engineer who is excited to build modern, reliable backend services and grow their technical expertise. You will work closely with senior engineers, product managers, and designers to deliver features...

Traka (Assa Abloy) is looking for a Go Backend Cloud Native Engineer to join their Hospitality division. This role involves designing the transition from monolith to microservices and working on cloud-native applications within their R&D department. The ideal candidate has experience in backend development, API design, and Kubernetes. The position offers...

ASSA ABLOY Sicherheitstechnik GmbH is seeking a Go Backend Cloud Native Engineer for their Hospitality division. This remote position involves working closely with the R&D team to transition to microservices architecture, ensuring robust cloud-native applications. The ideal candidate will have at least 2 years of experience in a cloud-native environment,...

OLX is building a GenAI platform in Spain and seeks a mid-level Backend Engineer to help design, develop, and scale cloud-native services using Python/JVM languages in a microservices environment. The team operates on Kubernetes in AWS, with CI/CD pipelines managed through GitLab.You will contribute to strategic projects, mentor junior engineers, and...

A progressive tech company in Madrid is seeking a Staff Backend Engineer for the Treasury Management team. The position involves designing and maintaining scalable backend systems primarily using Kotlin. You will have ownership of service architectures in a financial context and collaborate with cross-functional teams. The ideal candidate will possess...

Alignerr Corp. is seeking Back End Developers for a fully remote hourly contract in Madrid. Design, build, and optimize server-side systems and APIs powering AI products, including data pipelines and scalable microservices that handle real-world traffic. You will work with languages like Python, Go, Java, Node.js, or Rust, and use AWS/GCP/Azure, PostgreSQL,...

Una empresa tecnológica está buscando un Programador/a Python en España. Este rol requiere un apasionado del Back End con experiencia en Python y tecnologías como Flask, Django y Kubernetes. Se ofrece contrato indefinido, salario competitivo, teletrabajo flexible y beneficios como seguro médico y formación continua. La compañía promueve la diversidad...

Airalo is seeking a backend engineer to drive the evolution of our global platform used by millions. You will lead backend services, build APIs, and contribute to a modular, service-oriented architecture while balancing speed with stability.We value deep PHP expertise, Laravel or Symfony experience, strong OOP, and solid SQL skills. Fluency in English is...

Grafana Labs is seeking a Senior Backend Engineer for their Alerting team based in Spain. You will build and maintain distributed systems that manage alerts and influence product features, all while contributing to an open-source culture.Ideal candidates are self-motivated, customer-focused, and have solid programming experience. The compensation ranges from...

SQUAD Technology Solutions busca un Senior Java Engineer para un proyecto estable en el sector público, desarrollando y evolucionando aplicaciones de administración electrónica y gestión económica.Se requieren 8+ años en TI y 4+ años con Java, Java 8, Spring Boot 2.7.18, JUnit 4.8.1, JWT/API Key, Git/GitLab y Oracle DB 19c. Modalidad híbrida en...

Spain (Remote)Grafana Labs, the company behind the open observability cloud, is founded on the principles of open source, open standards, open ecosystems, and open culture. Grafana Cloud, our fully managed observability platform, is flexible and built for scale. With Grafana Cloud's actually useful AI, organizations can see, understand, and act on all their...

Una multinacional del sector textil busca un Arquitecto/a Backend Java para unirse a su equipo remoto. La posición implica asesorar técnicamente y apoyar a otros equipos en nuevos proyectos. Requiere un mínimo de 4-5 años en desarrollo backend, dominio de Java, y experiencia con Kafka y Spring Framework. Ofrecemos contrato indefinido, horario flexible,...