Location : Brussels, BelgiumType : PERMANENT (CDI)We are looking for a talented and motivated Application Developer to join our client's team. In this role, you will be responsible for designing, developing, testing, and releasing applications in line with established standards, while ensuring proper documentation and smooth delivery. You will play a key role in both maintaining existing systems and building new applications and features.Your Responsibilities :Design, develop, test, and release applications following best practices and standardsWrite and maintain documentation for developed features.Analyze and resolve technical or application-related issuesIn the first phase, maintain and enhance applications for claims/contract management (.NET) while contributing to new application and feature development (Web)In the longer term, focus primarily on web development and feature expansionYour Profile :5+ years of development experience with .NET (C#, .NET Framework, WinForms)Basic knowledge/experience with HTML5, CSS3, JavaScript, AngularJS, Node.js and motivation to deepen skills in these technologiesFamiliarity with HTTP, REST, JSON, XML, SQLExperience with Test Driven Development (TDD), Unit & Integration Testing, Continuous Integration/Deployment is a strong plusExperience with DB2 is a plusUnderstanding of Agile / Scrum principles is a plusStrong troubleshooting skills and excellent communication abilitiesProactive, creative, and solution-oriented mindset, comfortable working in a multidisciplinary teamLanguage skills :Fluent in English AND French/Dutch with passive understanding of the otherWhat We OfferA dynamic and collaborative work environmentOpportunities to grow in modern web technologiesThe chance to contribute to impactful business applicationsA supportive team that values innovation and continuous improvement