This is a highly technical role for an engineer who goes beyond frameworks and tools, with a strong understanding of distributed architectures, asynchronous messaging, low-latency systems java reactive programming (Vert.X, RxJava) and software design principles. You will have real influence over architecture and engineering standards, working in lean teams and leveraging modern AI-assisted development tools..What are we looking for? Architecture & High-Scale Systems: Design, build and evolve highly scalable microservices and distributed systems, ensuring reliability, maintainability and performance across mission-critical services.Deep Java Engineering: Bring strong expertise in Java, Spring Boot, Vert.X and RxJava, with a solid understanding of modern functional programming approaches, concurrency and performance optimisation.Event-Driven & Asynchronous Architecture: Design and optimise asynchronous messaging and event-driven solutions using Apache Kafka, with particular attention to throughput, latency, resilience and system behaviour under scale.Technical Leadership: Influence architecture and engineering decisions across multiple initiatives,



defining design patterns, technical standards and engineering best practices while remaining strongly hands-on.Performance & Reliability: Analyse and improve system performance, identifying bottlenecks and designing solutions capable of supporting high-volume, low-latency environments .Cloud, Kubernetes & Data: Work with Azure or AWS, Kubernetes and modern data platforms, combining SQL and NoSQL technologies such as PostgreSQL and Couchbase within distributed architectures.AI-Augmented Engineering: Incorporate modern Agentic AI and AI-assisted development tools such as Tabnine and Gemini into engineering workflows to improve developer productivity and support efficient, high-quality software delivery.What does our client offerr? Immediate start with a permanent contract.Remoto work model from Spain, 38-hour workweek, versátil hours, and career development opportunities.23 vacation days, health insurance, social benefits, remote work allowance, high-end laptop and acces#J-18808-Ljbffr

📌 Staff Engineer Java | Spring Boot, Kafka, Rxjava, Kafka (Remote,75-80k) (Madrid)
🏢 THE BOARD | people & talent
📍 Madrid