Start Date: ASAPEnd Date: 31/03/2026 (Renewable) In the scope of the evolution of the our clients IT, we are actively looking for an external experienced integration layer developer. He will be integrated in the "Market" Data Product team (or potentially another data product team). The mission will cover the following tasksDesign and implementation of the physical model of a coherent data modelAnalysis, design, development and testing of a transversal integration layerEnsure the alignment between the business/technical architecture and the functional/non-functional needs of the clientsBring concrete experience in terms of best practice in the integration layer concepts.Actively participate in the planning of the different phases of the integration project, in close relation with other IT teams, external partners and the business.Guarantee performance and trust in the solution by participating to the set up and following of a continuous build and testing platformCollaborating with the competency leader to contribute in the maturity development of the integration engineersBring technical expertise to the team as well as infrastructure knowledge of tools used by the Integration Hub (queue manager, distributed cache, audit and monitoring)Participate in the setup of an efficient and dynamic documentation solutionSecond and third line support for production Requirements Technical skills (required):Experience in .NET/Microsoft platform (3+ years)Python development and best practices (3+ years)Integration framework experience - Scheduler framework experienceAudit and Trace framework experience (3+ years)Efficient monitoring tools experience (3+ years)Web Services (REST, SOAP), XML, Flat Files, GraphQL, Messaging-/Steaming based communicationExperience with a data centric approach and working in a product organizationCapabilities to help in the administration of the tools used (mixed environment Windows and Unix)Supplier and procurement documentation and meetings with external parties will be in English. Knowledge of this language is mandatoryTheoretical knowledge of and practical experience with distributed architecture patterns (synchronous & asynchronous)Distributed cache patterns (Concepts and practical experience)Practical experience in the usage of Messaging and/or Event Streaming solutionsPractical experience in the development of a data integration layerAutomated Unit Testing and Integration Testing - Continuous Integration development