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WIZELINE

Java Software Engineer - Barcelona (Hybrid)

WIZELINE Barcelona, Catalonia, Spain

IT Services and IT Consulting · 1,001-5,000 employees

4 h ago
java Senior (5-10 yrs) Full-time Spain
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About the role

Design and maintain distributed systems using microservices architecture and service mesh patterns. Implement CI/CD pipelines and automated testing suites to ensure high-quality software delivery.

What they look for

Java Spring Boot RESTful APIs Microservices Docker Kubernetes CI/CD Jenkins Prometheus Grafana AWS Azure JUnit Mockito Istio Performance optimization

Requirements

Requires deep expertise in Java, Spring Boot, and container orchestration tools like Docker and Kubernetes. Candidates must have experience with cloud environments and performance optimization in large-scale systems.

Benefits

Professional development Flexible culture Collaborative environment Global opportunities

Full description

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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