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Data Integration Engineer

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Apollo Solutions

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Location:
Belgium

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

We are supporting a major European transmission system operator on a strategic data platform evolution within the energy sector. As part of a long-term product team focused on asset data, we are looking for an experienced Data Integration Engineer / Integration Layer Developer to help design and build robust, scalable integration solutions in a business-critical environment.

Job Responsibility:

  • Design and implement data integration and data management solutions (data quality, MDM, integration layer)
  • Develop and maintain integration frameworks within a .NET / Microsoft environment
  • Ensure alignment between business needs and technical architecture (functional & non-functional)
  • Implement distributed architecture patterns (synchronous & asynchronous)
  • Work with messaging / event streaming solutions and distributed caching
  • Contribute to CI/CD setup, automated testing, and continuous build pipelines
  • Support monitoring, audit, and traceability frameworks
  • Provide 2nd and 3rd line support for production systems
  • Collaborate within an Agile, cross-functional product team

Requirements:

  • 3+ years of experience in .NET / Microsoft ecosystem
  • Strong experience building data integration layers
  • Hands-on experience with integration, scheduler, audit & monitoring frameworks
  • Solid knowledge of REST, SOAP, XML, Flat Files, GraphQL
  • Practical experience with messaging and/or event streaming solutions
  • Experience with distributed systems and cache patterns
  • Experience with automated testing and CI/CD environments
  • Comfortable working in data-centric product organisations
  • Professional proficiency in English + French or Dutch

Nice to have:

  • Experience in the utilities or energy sector
  • Experience within asset-heavy or TSO environments
  • Knowledge of mixed Windows/Unix environments
  • Strong documentation mindset and continuous improvement approach

Additional Information:

Job Posted:
March 19, 2026

Work Type:
Hybrid work
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