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team in Delft . We are a growing, innovation-driven organisation, and looking to expand our team operating within the Defence & Security domain , where advanced technologies are translated into real-world operational capabilities. To support our continued growth, we are looking for a Business Development Manager who can connect technology, stakeholders, and operational needs . In this role, you will work closely with Defence organisations, research partners, and industry stakeholders to identify opportunities and help shape solutions that make a real impact. You will play a key role in bridging the gap between technical innovation and practical application , helping turn ideas into deployable products and services used in complex and mission-critical environments. Job details Business Development Manager – Defence & Security Main responsibilities • Build and maintain strong relationships with Defence stakeholders, research institutions, and industry partners Translate operational needs into concrete opportunities and collaborations Identify and develop new business opportunities within the Defence & Security domain Stay up to date with market trends, emerging technologies, and Defence developments Represent the organisation at events, exhibitions, and industry gatherings Work closely with internal technical teams to shape proposals and solutions Support the development of business cases and value propositions Contribute to turning innovative technologies into practical, field-ready capabilities Requirements Experience & expertise Bachelor’s or Master’s level working and thinking ability Relevant experience within the Defence & Security sector or a comparable environment Strong affinity with high-tech systems and innovation Understanding of Defence-related systems or environments (e.g. C4ISR) is a strong advantage Experience in business development, stakeholder management, or similar roles Personal profile Strong communicator with the ability to engage at different levels Fluent in Dutch and English (both required) Commercial mindset with a focus on identifying opportunities and building partnerships Strong networking skills and willingness to represent the organisation externally Able to translate complex topics into clear and practical solutions Interest in working within the Defence domain , with the ability to obtain security clearance (SECRET level) What we offer A role at the intersection of technology, strategy, and real-world impact The opportunity to work within the Defence & Security ecosystem , contributing to meaningful and mission-critical solutions A high level of autonomy and responsibility Collaboration with highly skilled technical and commercial teams An innovative and growing environment with strong international exposure A competitive salary and benefits package Please note that if you do not hear back from us within 10 days of your application, you may assume that we have selected another candidate we would like to interview for this position. We do our best to get back to you individually; however, due to a high volume of responses, it can be that we have not been able to reject your application in person. We kindly request that recruitment agencies do not contact us regarding this vacancy. We are not seeking assistance and will not be liable for any fees or charges associated with unsolicited CVs or candidate introductions. Any candidates submitted by agencies without prior written agreement will be considered our direct applicants and may be employed without obligation or fee. Are you enthusiastic about becoming our new Business Development Manager – Defence & Security? Apply via our application form, or send your CV and motivational letter directly to [email protected]. Our story At S[&]T we contribute to a safer life on earth by translating space data into valuable and actionable insights. We oversee data from instruments to application, and apply our expertise within our software frameworks, information products and consultancy. Our society relies on space and scientific instruments for climate change monitoring, navigation, defence and national security, and other crucial services we all use in our daily lives. These instruments produce an enormous quantity of complex data, and our goal is to unlock its value. We have more than 20 years of experience working on instrument calibration, the creation of data quality monitoring tools, the development of real-time data processing frameworks, and the development of application-specific algorithms. With this, we help organisations, governments and industries to strengthen their information position and thereby improve their decision making. We focus on the following domains: Space & Science, Defence & Security, Environment & Sustainability, and High-Tech Consulting. Privacy notice In order to apply for this vacancy you must submit your personal information to S[&]T. We will collect, use, and process your personal information as mentioned in our Privacy Policy. Our policy and processing of your personal information are compliant with the GDPR. How to apply Would you like to hear more? Send your CV and motivational letter to or through our website. Kindly note that acquisition from third parties (e.g. agencies) based on this vacancy is not welcome.