We Are
Wizeline, a general 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 an

📌 Java Software Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona