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Freelance Java Developer - ENGIE

  • Hybrid
    • Brussels, Brussels, Belgium
  • Freelance

Job description

Customer info:

We are part of a leading Energy & Utilities organization committed to accelerating the energy transition through data and digital innovation. Our teams develop and maintain robust data platforms that empower business units to make smart, data-driven decisions — from forecasting energy usage to optimizing grid operations.

Job requirements

Your role

As a Medior software Engineer, you will:

  • Analyze needs and model IT applications

  • Develop high-performance and scalable applications

  • Implement continuous integration

  • Maintain and further develop existing applications

  • Manage IT development projects

Soft skills:

  • Strong analytical and problem-solving skills.

  • Effective communicator – technical and non-technical.

  • Comfortable working in agile, cross-functional teams.

  • Self-starter with a growth mindset and flexibility.

Other requirements:

  • Bachelor’s or Master’s in Computer Science, Engineering, or a related field.

  • Fluent in English; knowledge of Dutch or French is a plus.

  • Willingness to work 2 days per week onsite in Brussels (hybrid model).

  • GraphQL

  • Java Spring Boot

  • Kafka (Confluent)

  • REST API development & provisioning

  • PostgreSQL

  • AWS Services (EKS, SQS, S3)

  • CI/CD pipelines & monitoring

  • Kubernetes

Why join adesso Belgium?

  • Work in an international group with strong local expertise in Belgium.

  • Collaborate with cross-functional teams to deliver trusted, compliant, reusable data products.

  • Flexible freelance setup with the support of a growing adesso Belgium community.

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