Contemporary Star Energy is looking for you…
Contemporary Star Energy is a joint venture created by Stellantis and CATL to advance affordable and sustainable electric mobility in Europe. Bringing together general automotive leadership and next-generation battery innovation, we lead the evolution of cleaner and smarter mobility. Our large-scale, carbon-neutral battery manufacturing project contributes to the European electrification ecosystem and supports the regional supply chain for battery production.
Strategically located next to Stellantis´ plant in Zaragoza, Spain, the Gigafactory will produce next-generation lithium iron phosphate (LFP) batteries with a capacity of up to 50 GWh.

Would you like to be part of our team?
We are looking for a Java Developer to design, develop, and maintain robust, scalable, and high-performance applications. You will contribute to the development of modern software solutions, working with Java technologies, microservices, and RESTful APIs to support business needs and ensure the reliability, security, and continuous improvement of our systems.





Your main responsibilities will be:
• Developing and maintaining Java/J2EE applications following coding standards and best practices.
• Designing and integrating RESTful APIs and microservices.
• Collaborating with stakeholders to translate business requirements into technical solutions.
• Participating in code reviews, testing, and CI/CD processes.
• Optimizing application performance, troubleshooting issues, and ensuring system security and reliability.
• Maintaining technical documentation and contributing to architecture and continuous improvement initiatives.

Your profile and qualifications:
• Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field.
• At least 3 years of professional experience in Java development.
• Strong knowledge of Java, Spring frameworks, OOP, and software design patterns.
• Experience with RESTful APIs and databases such as MyS

📌 Java Developer (Zaragoza)
🏢 Contemporary Star Energy
📍 Zaragoza