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.
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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

📌 Staff Engineer Java | Spring Boot, Kafka, RxJava, Kafka (Madrid)
🏢 THE BOARD | people & talent
📍 Madrid