Java Software Engineer - Barcelona - (Hybrid)

• Design, build, and maintain scalable backend services using Java and Spring Boot in a cloud-native AWS environment.
• Develop and optimize RESTful APIs, microservices, and backend components following best engineering practices.
• Collaborate closely with cross-functional teams-Product, DevOps, QA, and Frontend-to ensure seamless integration and high-quality product delivery.
• Participate in architectural discussions, contributing to decisions that ensure scalability, security, and performance.
• Troubleshoot complex backend issues, perform root-cause analysis, and provide long-term improvements to system stability.
• Implement automation, monitoring, and CI/CD pipelines to improve development and deployment workflows.
• Write clean, maintainable, and well-tested code, following engineering and security standards., * A High-Impact Environment
• Commitment to Professional Development
• Flexible and Collaborative Culture
• Global Opportunities
• Vibrant Community
• Total Rewards

Do you have experience in Unit testing?, * 5+ years of backend engineering experience working with Java and Spring Boot in production environments.

• Strong hands-on experience with AWS services (Lambda, ECS/EKS, API Gateway, S3, RDS/DynamoDB, CloudWatch, etc.).
• Solid understanding of microservices architecture and distributed systems.
• Experience building and consuming RESTful APIs.
• Proficiency with CI/CD pipelines and tools (Jenkins, GitHub Actions, GitLab CI, etc.).
• Strong understanding of relational and/or NoSQL databases.
• Experience with unit testing, integration testing, and test automation frameworks.
• Ability to work autonomously while collaborating effectively with a cross-functional team.
• Excellent problem-solving and communication skills.

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.

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.