Senior Back-End Developer - Freelance/Perm - Brussel - Hybrid

<h3>Bedrijfsomschrijving</h3><p>Resillion is a leading company in software testing and cybersecurity. For an important client, we are looking for an experienced Senior Back-End Developer to strengthen the development team and contribute to high-quality, scalable applications.</p><h3>Vacatureomschrijving</h3><p>As a Senior Back-End Developer, you will be responsible for designing, building, and maintaining efficient and scalable applications. You will work closely with cross-functional teams to ensure optimal performance and security.</p><p><strong>Responsibilities</strong></p><ul><li><p>Develop and maintain back-end applications using .NET Core and C#.</p></li><li><p>Design and implement APIs and microservices.</p></li><li><p>Work with SQL databases and ensure efficient data storage.</p></li><li><p>Optimize application performance and identify potential bottlenecks.</p></li><li><p>Collaborate with front-end developers working with Angular and React.</p></li><li><p>Implement automated testing and ensure high-quality code.</p></li><li><p>Utilize Agile methodologies and version control (GIT) to manage development processes</p></li></ul><h3>Functie-eisen</h3><ul><li><p>5+ years of experience as a back-end developer.</p></li><li><p>Strong in ENG and Dutch or FR</p></li><li><p>Strong proficiency in .NET (C#, ASP.NET Core, .NET Core).</p></li><li><p>Experience with API development, microservices, and SQL databases.</p></li><li><p>Knowledge of front-end technologies like Angular or React is a plus.</p></li><li><p>Familiarity with common design patterns and Agile development.</p></li><li><p>Proficient in version control systems like GIT.</p></li><li><p>Experience with Atlassian tools and Agile methodologies.</p></li><li><p>Knowledge of the railway industry is a plus.</p></li><li><p>Strong analytical and problem-solving skills.</p></li></ul><h3>Aanvullende informatie</h3><ul><li><p>Hybrid work model: minimum 2 days per week at the Brussels office.</p></li><li><p>A challenging and dynamic work environment.</p></li><li><p>Opportunities for career growth and professional development.</p></li><li><p>Competitive salary package with additional benefits and incentives.</p></li></ul>