C# Software Engineer

C# Software Engineer – Rotterdam – ALTEN The Position As part of our expanding team, we are looking for a talented C# Software Engineer to join us in Rotterdam and contribute to impactful, high-tech client projects across a variety of industries. As a C# Engineer, your main tasks will include: Designing, developing, and maintaining high-quality software applications using C# and the .NET ecosystemTranslating technical specifications into robust, scalable, and efficient codeIdentifying, troubleshooting, and resolving complex technical challenges with innovative solutionsEnsuring code quality through unit testing, code reviews, and adherence to best engineering practicesCollaborating with cross-functional teams to deliver reliable and performant end-to-end solutions(Optional but valued) Applying your C++ knowledge in projects where native integration or performance-critical modules are involved Your Profile Bachelor’s or Master’s degree (HBO/WO) in Computer Science, Software Engineering, or a related discipline3+ years of professional experience in C#/.NET software development (Medior to Senior level)Solid understanding of object-oriented programming, design patterns, and software architecture principlesExperience with modern .NET frameworks, tooling, and development workflowsC++ knowledge is a strong plusStrong analytical and problem-solving abilitiesExcellent communication skills for effective collaboration with colleagues and clientsProactive mindset with eagerness to learn, improve, and explore new technologiesFluent in English (spoken and written) Working Conditions Lease car with fuel cardPossibility of hybrid workingMonthly net expense allowance27 vacation days, with the option to purchase up to 10 extra vacation daysPension scheme with no personal contribution required What we offer Access to exciting projects in key sectors: Defence, Transport, Telecom, FinanceA diverse client base: Collaborations with both large corporations and smaller players across the NetherlandsA real career development plan: Continuous training, coaching, daily knowledge sharingAn innovative and collaborative environment About ALTEN ALTEN is a world leader in engineering and technology consulting, with over 57,700 employees in more than 30 countries. We support major companies in their innovation, R&D, and digital transformation projects across sectors such as automotive, aerospace, energy, finance, life sciences, and telecommunications. Present in the Netherlands for over 20 years, ALTEN operates from its offices in Eindhoven, Capelle aan den IJssel, Apeldoorn, Groningen and Amstelveen. Today, with a team of 600+ consultants, ALTEN offers a wide range of expertise across Engineering and IT fields. From Automotive to Railway, and Defence to Aeronautics, our experts deploy their knowledge to provide innovative solutions in a dynamic and forward-thinking environment. Ready for a new challenge? Apply now and take part in innovative and impactful projects at ALTEN!