UX/UI Designer
Location:
Diegem, Belgium
| Application deadline:
11 February 2026
| Reference number:
0422 Are you interested in being part of a company that shapes the future of space and cyber technologies? To have a job where you can contribute to real-world missions with long-term impact? We’re looking for a skilled UX/UI Engineer with strong experience in both design and implementation to join our team at our Diegem office, near Brussels, Belgium. You will join a multidisciplinary team developing a next-generation, web-based MBSE (Model-Based Systems Engineering) platform built on the new SysML v2 standard and leveraging the CDP4-COMET foundation. This platform supports collaborative and concurrent design workflows for complex systems across sectors such as aerospace, defense, and automotive. In this role, you will lead the design and implementation of intuitive, high-performing user interfaces tailored for system engineers, domain specialists, and project reviewers. Tasks and activities
The scope of work will include: Designing intuitive, role-based interfaces for complex MBSE workflows Working closely with C# backend developers, systems engineers, and product owners to turn domain needs into efficient user journeys Creating wireframes, mockups, and prototypes in Figma Designing and maintaining a consistent design system (icons, typography, layout, colours) Supporting user testing with the QA engineer, including usability sessions and feedback collection from expert and novice users Minimising cognitive load in complex data environments Contributing to high-fidelity frontend development using ASP.NET Blazor components Participating in SCRUM sprints, demos, and retrospectives Designing and delivering robust, high-performance user interfaces that provide a visually appealing, intuitive, and unique user experience Leading the front-end development strategy and defining the technological roadmap to drive innovation, performance, and scalability Skills and experience
The following skills and experience are mandatory: Bachelor’s or Master’s degree in UX, HCI, Interaction Design, or a related field 3+ years of experience in UI/UX design, preferably within engineering or technical environments Proven experience designing complex, data-driven web applications Familiarity with systems-engineering contexts and technical users (e.g., engineers, system architects) Strong command of wireframing and prototyping tools (e.g., Figma, Adobe XD, Balsamiq) Experience working in agile teams, such as SCRUM Knowledge of C# and experience with Blazor Fluency in English, both written and spoken The following skills and experience would be highly desirable: Knowledge of MBSE, SysML, UML or similar modelling languages, along with a solid understanding of accessibility and responsive design principles Prior exposure to open-source projects or distributed teams Why should you apply?
You will have the opportunity to work within leading space organisations across Europe We encourage everyone to think outside the box and to push the boundaries of traditional knowledge. This role is an opportunity to join a forward-thinking company and allows for a deeper understanding of the industry To be part of a company that values integrity, inspiration, care and collaboration Benefits include: competitive remuneration packages; unique career opportunities, including working in other countries; access to training and development programmes; flexible relocation support We are proud to be an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. We therefore welcome applications from all candidates, irrespective of gender, sexual orientation, ethnicity, religious beliefs, age, disability or other characteristics. As part of our commitment to providing an inclusive and barrier-free recruitment process, we will provide reasonable adjustments and support to ensure neuro-diverse applicants or those with a disability or long-term condition can be their best during the recruitment process. About Starion
Starion is one of two new legal entities rebranded from the RHEA Group, focused on space consultancy and space engineering services and solutions. Starion provides engineering expertise and solutions for space, defence and other critical infrastructures across Europe, pushing the boundaries of innovation. Our teams work on world-leading space projects that deliver the pioneering missions that provide us with the information and technologies we use today. Starion offers over three decades of expertise in professional engineering services, developing and operating systems and solutions tailored to our clients’ needs. By combining space and system engineering with established and emerging technologies, such as AI and quantum, we produce innovative solutions that make a fundamental difference for our clients and for society. Starion employees are located across Europe, close to our clients’ offices, enabling us to be responsive and agile. Our engineers and researchers are among the most trusted and respected in the industry, helping build space-based solutions that address major challenges on Earth such as civil security, climate change and deforestation. How to apply
Looking to take your career to the next level or find out more details about this opportunity? Interested applicants should submit their CV and Cover Letter to Starion’s Recruitment team at careers@stariongroup.eu no later than 11 February 2026. Preference will be given to candidates eligible for an EU or national personal security clearance at the level of CONFIDENTIAL or above. Apply now Questions? Contact
German Cingerli
Recruitment Manager
Share this vacancy
Apply now - UX/UI Designer
" * " indicates required fields Title (e.g. Mr, Ms, Mx, Dr) Name * First name Last name Email * Phone Upload your CV * Drop files here or Accepted file types: txt, pdf, doc, docx, Max. file size: 10 MB, Max. files: 10. Other supporting documents Drop files here or Accepted file types: txt, pdf, doc, docx, Max. file size: 10 MB, Max. files: 10 How did you hear about this job? If you were contacted by a Recruiter, please share their name If ‘I know someone in the company’ please share their name If ‘Job fair’ please tell us which one If ‘Other’ please tell us more * I agree to the Terms of Use and Privacy Policy * I agree to allow Starion Group to store and process my personal data in accordance with the Candidate Privacy Notice Δ Related jobs
Permanent 27 January 2026 Software Engineer
Location Diegem, Belgium Deadline
11 February 2026
#J-18808-Ljbffr
Location:
Diegem, Belgium
| Application deadline:
11 February 2026
| Reference number:
0422 Are you interested in being part of a company that shapes the future of space and cyber technologies? To have a job where you can contribute to real-world missions with long-term impact? We’re looking for a skilled UX/UI Engineer with strong experience in both design and implementation to join our team at our Diegem office, near Brussels, Belgium. You will join a multidisciplinary team developing a next-generation, web-based MBSE (Model-Based Systems Engineering) platform built on the new SysML v2 standard and leveraging the CDP4-COMET foundation. This platform supports collaborative and concurrent design workflows for complex systems across sectors such as aerospace, defense, and automotive. In this role, you will lead the design and implementation of intuitive, high-performing user interfaces tailored for system engineers, domain specialists, and project reviewers. Tasks and activities
The scope of work will include: Designing intuitive, role-based interfaces for complex MBSE workflows Working closely with C# backend developers, systems engineers, and product owners to turn domain needs into efficient user journeys Creating wireframes, mockups, and prototypes in Figma Designing and maintaining a consistent design system (icons, typography, layout, colours) Supporting user testing with the QA engineer, including usability sessions and feedback collection from expert and novice users Minimising cognitive load in complex data environments Contributing to high-fidelity frontend development using ASP.NET Blazor components Participating in SCRUM sprints, demos, and retrospectives Designing and delivering robust, high-performance user interfaces that provide a visually appealing, intuitive, and unique user experience Leading the front-end development strategy and defining the technological roadmap to drive innovation, performance, and scalability Skills and experience
The following skills and experience are mandatory: Bachelor’s or Master’s degree in UX, HCI, Interaction Design, or a related field 3+ years of experience in UI/UX design, preferably within engineering or technical environments Proven experience designing complex, data-driven web applications Familiarity with systems-engineering contexts and technical users (e.g., engineers, system architects) Strong command of wireframing and prototyping tools (e.g., Figma, Adobe XD, Balsamiq) Experience working in agile teams, such as SCRUM Knowledge of C# and experience with Blazor Fluency in English, both written and spoken The following skills and experience would be highly desirable: Knowledge of MBSE, SysML, UML or similar modelling languages, along with a solid understanding of accessibility and responsive design principles Prior exposure to open-source projects or distributed teams Why should you apply?
You will have the opportunity to work within leading space organisations across Europe We encourage everyone to think outside the box and to push the boundaries of traditional knowledge. This role is an opportunity to join a forward-thinking company and allows for a deeper understanding of the industry To be part of a company that values integrity, inspiration, care and collaboration Benefits include: competitive remuneration packages; unique career opportunities, including working in other countries; access to training and development programmes; flexible relocation support We are proud to be an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. We therefore welcome applications from all candidates, irrespective of gender, sexual orientation, ethnicity, religious beliefs, age, disability or other characteristics. As part of our commitment to providing an inclusive and barrier-free recruitment process, we will provide reasonable adjustments and support to ensure neuro-diverse applicants or those with a disability or long-term condition can be their best during the recruitment process. About Starion
Starion is one of two new legal entities rebranded from the RHEA Group, focused on space consultancy and space engineering services and solutions. Starion provides engineering expertise and solutions for space, defence and other critical infrastructures across Europe, pushing the boundaries of innovation. Our teams work on world-leading space projects that deliver the pioneering missions that provide us with the information and technologies we use today. Starion offers over three decades of expertise in professional engineering services, developing and operating systems and solutions tailored to our clients’ needs. By combining space and system engineering with established and emerging technologies, such as AI and quantum, we produce innovative solutions that make a fundamental difference for our clients and for society. Starion employees are located across Europe, close to our clients’ offices, enabling us to be responsive and agile. Our engineers and researchers are among the most trusted and respected in the industry, helping build space-based solutions that address major challenges on Earth such as civil security, climate change and deforestation. How to apply
Looking to take your career to the next level or find out more details about this opportunity? Interested applicants should submit their CV and Cover Letter to Starion’s Recruitment team at careers@stariongroup.eu no later than 11 February 2026. Preference will be given to candidates eligible for an EU or national personal security clearance at the level of CONFIDENTIAL or above. Apply now Questions? Contact
German Cingerli
Recruitment Manager
Share this vacancy
Apply now - UX/UI Designer
" * " indicates required fields Title (e.g. Mr, Ms, Mx, Dr) Name * First name Last name Email * Phone Upload your CV * Drop files here or Accepted file types: txt, pdf, doc, docx, Max. file size: 10 MB, Max. files: 10. Other supporting documents Drop files here or Accepted file types: txt, pdf, doc, docx, Max. file size: 10 MB, Max. files: 10 How did you hear about this job? If you were contacted by a Recruiter, please share their name If ‘I know someone in the company’ please share their name If ‘Job fair’ please tell us which one If ‘Other’ please tell us more * I agree to the Terms of Use and Privacy Policy * I agree to allow Starion Group to store and process my personal data in accordance with the Candidate Privacy Notice Δ Related jobs
Permanent 27 January 2026 Software Engineer
Location Diegem, Belgium Deadline
11 February 2026
#J-18808-Ljbffr