Location:Desplácese hacia abajo para encontrar los detalles completos de la oferta de trabajo, incluyendo la experiencia requerida y las funciones y tareas asociadas.Spain (100% Remote)#Seniority:Senior#FULLSTACK JAVA DEVELOPERWe are looking for a Senior Fullstack Java Developer to join one of our clients through anestablished international IT and business consulting company, with decades of experience delivering large-scale technology and organizational projects across multiple industries.You will work for aleading company in the energy sector, contributing to the development of modern, scalable, and mission-critical systems. The projects focus on cloud-native architectures, event-driven systems, and high-performance platforms that support core energy operations.#We are looking for aSenior Fullstack Java Developerwith a strong backend focus who is motivated, collaborative, and comfortable working in modern, reactive environments.You will be involved across the full software lifecycle, working closely with agile teams to design and implement tailor-made solutions for complex business processes in the energy domain.As a Fullstack Java Developer, you will: Design, develop, and maintain complex client-facing and backend applications Work across the full technology stack, from frontend integration to backend services and cloud environments Build reactive and event-driven systems using modern Java and Spring technologies Collaborate in agile, cross-functional project teams to deliver customized software solutions Ensure high standards of code quality, scalability, performance, and reliability#Extensive experience withSpring Boot, including Spring WebFlux, reactive Kafka Streaming, WebSocket, and Kafka Reactive Binder#Strong expertise indatabase integration, especially PostgreSQL, Hibernate, JDBC, and R2DBC for reactive data processing#Solid experience withevent-driven architectures, including Kafka as a message broker#Experience integrating Kafka with Spring Boot (e.g. Spring Cloud Stream)#Hands-on experience withcloud-native and containerized deployments, including Kubernetes, CI/CD pipelines, and Terraform#Ability to deliver clean, scalable, and reliable software within modern reactive technology stacks#Strong attention to detail and commitment to high-quality delivery xcskxlj #Experience with time-series data processing and time-series databasesInterest in modern development practices and AI-supported tools, with awareness of data protection and compliance requirementsVery good English skills (German is a plus)#100% remote work Flexible working hours to support work-life balance Personalized professional development aligned with your strengths and project interests Access to continuous learning platforms and training resources Long-term projects in theenergy sector, working on impactful and business-critical systems#If you’re interested in building modern, reactive software solutions for the energy sector while enjoying full flexibility and long-term growth, we’d love to hear from you.