Frontend / Full Stack Software Engineer

Frontend / Full Stack Software Engineer
We are currently looking for a Frontend / Full Stack Software Engineer to join our Defence & Security team in Delft.
Satellite operations are becoming increasingly complex. With more satellites, more diverse missions, and growing demands for automation and operational efficiency, mission operators require ground segment solutions that are flexible, scalable, and easy to adapt. Traditional ground segment solutions are often highly customised for individual missions, limiting scalability and increasing operational complexity.
At S&T we are developing software solutions for clients who operate their own satellite constellations. We are developing a satellite Mission Control System, which can operate multiple satellites from different providers in one single system. With this development we are changing the approach of traditional ground segment solutions by developing a modular, software-first ground segment platform that combines reusable building blocks for mission planning, tasking, satellite operations, monitoring, and data workflows. Our ambition is to create a scalable operational environment that enables efficient management of current and future satellite missions, reduces complexity, and accelerates mission deployment across civil, commercial, and defence applications.
As a Frontend / Full Stack Software Engineer you will be part of our Mission Control System development team. Here you will be designing the frontend of this system for our end client. Beside this, you will can develop your backend skills or work on the frontend of other projects for clients such as the European Space Agency.
The team is part of the Intelligence, Surveillance & Reconnaissance (ISR) program, a team of 12 (and growing) enthusiastic and social developers, data scientists and FPGA-engineers. The team develops solutions for Earth Observation data processing, both on-ground or on-board satellites. ISR is part of the Defence & Security unit, where we are working on innovative solutions that leverage space technologies for Defence and Security.
Frontend / Full Stack Software Engineer
This is an excellent opportunity for someone who enjoys combining modern software development with real-world impact in a highly technical environment.
Design and develop user-friendly applications for defence.
Build intuitive interfaces that present complex technical and operational satellite information in a clear and actionable way.
Develop and maintain backend services and APIs supporting frontend applications.
Work closely with software engineers, system architects, domain experts, and end-users.
Translate operational requirements into scalable and maintainable software solutions.
Participate in technical discussions and contribute to system design decisions.
Develop secure, reliable, and maintainable code.
Contribute to software testing, validation, and continuous improvement activities.
Support deployment, integration, and lifecycle management of software systems.
Explore and implement new technologies, frameworks, and development approaches.
Support the development of next-generation Defence & Security capabilities.
Contribute to proof-of-concepts, demonstrations, and customer-facing projects.

Bachelor's or Master's degree in Computer Science, Software Engineering, Information Technology, or a related field.
Experience in frontend or full stack software development.
Experience developing modern web applications.

Experience with some of the following

React, Angular, Vue.js, or similar frontend frameworks
Node.js, Python, Java, or C#
Git and modern software development practices

Experience with GIS or geospatial applications.
Experience with real-time data processing and visualisation.
Experience within Defence, Aerospace, Security, or Critical Infrastructure sectors.
Knowledge of Command & Control systems.
Experience working in secure or classified environments.

Strong analytical and problem-solving skills.
Ability to communicate technical concepts clearly.
Interest in Defence, Security, and high-tech innovation.
Ability to obtain the required EU security clearances.

Dutch is considered a strong advantage.

Competitive salary between €3,500 – €5,000 gross/month (based on experience, full-time)
The opportunity to work on innovative technologies with real operational impact.
Challenging projects within the Defence & Security domain.
Collaboration with highly skilled engineers and domain experts.
A modern and flexible working environment.
The opportunity to contribute to solutions that help protect people, infrastructure, and society.
An yearly fun trip abroad with the entire company!

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 Frontend / Full Stack Software Engineer – Defence & Security ?
Apply via our application form, or send your CV and motivational letter directly to recruitment@stcorp.nl.
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.
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.
Would you like to hear more? Send your CV and motivational letter to
Kindly note that acquisition from third parties (e.g. agencies) based on this vacancy is not welcome.