You ensure that our back-end systems are a bit better every day!
How do I become a Senior Java Developer Coolblue Energy at Coolblue?

Coolblue energy is an energy company for anybody who wants to save energy. Besides providing our customers with green energy, we also give them insight into how to reduce energy usage. As a Senior Java developer you'll work together with other development teams to make our back-end systems work optimally and give our customers the best insight and advice to reduce their energy consumption. In this way you contribute to the green energy transition. Would you also like to become a Senior Java developer at Coolblue Energy? Read below if the job suits you.

You enjoy doing this

• Writing excellent Java code.
• Coaching and mentoring your medior/junior colleagues.
• Working with the Customer Journey Specialist to make our customers even happier.
• Helping colleagues and yourself by reviewing pull requests and programming in pairs.
• Working in a team that takes full ownership for their systems.
• Besides improving your technical skills, you love to take time to work on your soft skills and help others with this.

You recognize yourself in the following

• Bachelor's degree in Computer Science, Software Engineering, or a related field
• 5+ years of professional Java development experience
• Advanced knowledge of Java programming and the Spring Framework
• Strong experience in developing RESTful APIs and microservices architecture
• Proficiency in version control systems, particularly Git
• Solid understanding of Agile methodologies and software development life cycle
• Experience with cloud platforms such as AWS or Azure
• Familiarity with containerization technologies like Docker and Kubernetes
• Knowledge of test-driven development (TDD) practices
• Experience with CI/CD pipelines and automated testing
• Strong analytical and problem-solving skills with attention to detail
• Excellent communication and teamwork abilities
• Java certifications (e.g., Oracle Certified Professional, Java SE 17 Developer) preferred
• Experience in energy sector software development is a plus
• Knowledge of energy management systems and related software applications is desirable

This is what you’re looking for in a job

Coolblue Energy is seeking a Senior Java Developer to join our innovative team in Utrecht, Netherlands. In this role, you will be responsible for designing, developing, and maintaining high-performance, scalable Java applications for the energy sector.

• Develop and maintain Java-based applications using Spring Framework and microservices architecture
• Design and implement RESTful APIs to support our energy management systems
• Collaborate with cross-functional teams to gather requirements and translate them into technical specifications
• Write clean, efficient, and well-documented code adhering to best practices and coding standards
• Participate in code reviews and provide constructive feedback to team members
• Troubleshoot, debug, and optimize Java applications for maximum performance
• Implement and maintain CI/CD pipelines to ensure smooth deployment processes
• Stay up-to-date with emerging trends and technologies in Java development and the energy sector