Java Software Engineer - Barcelona (Hybrid)

Wizeline · Barcelonamid

In short

▸Desarrollador Java que construye y mantiene microservicios escalables con Spring Boot y Kubernetes.
▸Trabaja en entornos híbridos, automatizando CI/CD, pruebas y monitoreo con herramientas como Jenkins, Prometheus y Grafana.
▸Destaca por integrar IA en el flujo de trabajo para optimizar procesos, aunque no es obligatorio.

Fluent English is required for collaboration with global teams.

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What they ask for

✓Experiencia sólida en Java 11/17/21 con enfoque en multihilo, gestión de memoria y rendimiento.
✓Dominio de Spring Boot para crear API REST, inyección de dependencias y JPA.
✓Conocimiento en arquitectura de microservicios con Istio, Docker y Kubernetes.
✓Experiencia con pipelines CI/CD, estrategias de despliegue (blue/green, rolling) y entornos gestionados.
✓Capacidad para diseñar pruebas automatizadas con JUnit, Mockito y validar APIs en CI.
✓Uso práctico de herramientas de monitoreo como Prometheus y Grafana.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

Java 11Java 17Java 21SpringSpring BootRESTful APIsDependency InjectionConfiguration ManagementSpring DataJPA

Who should you write to at Wizeline?

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We are: Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact. With the right people and the right ideas, there’s no limit to what we can achieve Are you a fit? Sounds awesome, right? Now, let’s make sure you’re a good fit for the role: Must-have Skills Core Technical Skills • Java (11/17/21) – Deep understanding of multithreading, memory management, performance optimization, and concurrent data processing. • Spring & Spring Boot – Expertise in building RESTful APIs, dependency injection, configuration management, and Spring Data/JPA integration. • Microservices Architecture – Experience designing and maintaining distributed systems using service mesh patterns (Istio) with Docker and Kubernetes. Infrastructure & DevOps • Strong understanding of CI/CD pipelines (e.g., Jenkins), automated testing, and environment management (staging, prod, integration). • Experience with container orchestration, deployment strategies (blue/green, rolling updates), and monitoring tools (Prometheus, Grafana). • Working knowledge of cloud environments (AWS or Azure) Testing & Quality • Proficiency with JUnit, Mockito, and integration testing frameworks. • Ability to design and maintain automated API tests and validation suites within CI/CD pipelines. • Experience defining performance metrics, profiling, and resolving bottlenecks in large-scale systems. Nice-to-have: • AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows. What we offer: • A High-Impact Environment • Commitment to Professional Development • Flexible and Collaborative Culture • Global Opportunities • Vibrant Community • Total Rewards *Specific benefits are determined by the employment type and location. Find out more about our culture here .

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