The Position As part of our ongoing growth, we are looking for a System Engineer to join our teams and work on client projects located in Belgium. As a System Engineer, your main responsibilities will include: Developing and improving both new and existing algorithms and control laws for guidance, navigation, flight controls, and aiming systems Testing and assessing algorithm performance using analytical methods and Monte Carlo simulations Performing validation and verification (V&V) for updated or new algorithm designs Supporting the integration of algorithms into hardware via code generation and Hardware-in-the-Loop (HIL) testing Enhancing generated C code and supporting embedded teams in algorithm integration Participating in trials and processing flight test data Maintaining digital twins for current and in-development products Modeling physical behavior of new concepts and performing simulations to guide development and inform key technical decisions Your Profile Master’s degree in Engineering, Aeronautics, Mathematics, Physics, or Electronics 3–5 years of experience in a similar position Strong competence in mathematics, statistics, and data analysis Proficiency with Matlab and Simulink; familiarity with Agile methodology Programming skills in C/C++; scripting in Python is a plus Understanding of real-time algorithm deployment on microcontrollers Analytical and detail-oriented, with strong problem-solving capabilities Excellent communication and pedagogical skills for conveying complex concepts clearly Language(s): English (mandatory) Previous experience in aeronautics, space, defense, or automotive sectors, and knowledge of standards like DO-178, ARP4754, or ISO26262, is a plus Working Conditions Permanent contract with an attractive salary package Company car with fuel card Representation fees Meal vouchers Mobile phone subscription Group insurance & healthcare insurance Possibility of remote work 20 legal vacation days 12 compensatory days What we offer Access to exciting projects in key sectors: Transport, Energy, Automotive, Telecom, Finance A diverse client base: Collaborations with both large corporations and smaller dynamic companies across Belgium A real career development plan: Continuous training, coaching, daily knowledge sharing An innovative and collaborative environment About ALTEN ALTEN is a world leader in engineering and technology consulting, with over 57,000 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 Belgium for over 25 years, ALTEN Belgium operates from its offices in Brussels and Antwerp. Today, with a team of 700 consultants, ALTEN Belgium offers a wide range of expertise across Engineering, Life Sciences, and IT fields. From Automotive to Railway, and Medtech to Agrifood, 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 Belgium!