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We are currently seeking a skilled User eXperience expert to join our team for a challenging opportunity with European Institutions in a near site position, in Brussels
Get to know us - SEIDOR
At SEIDOR, we drive client transformation and competitiveness with cutting-edge technology and innovation , with a relentless focus on the human element and a commitment to nurturing talent and sustainable growth.
As a diverse and inclusive company that champions equal opportunity, we boast a team of over 8,000 professionals in our global presence across 45 countries in Europe, Latin America, the USA, the Middle East, Africa, and Asia.
We believe the digital world's challenges require not only the best technologies and partnerships but most importantly, the best people. That's where you come in – we need you to help us scale new heights.
Your Role
From day one, you’ll find opportunities for personal and professional development within a supportive team environment. We offer:
https://www.seidor.com/en-es/talent
If this resonates with you, we'd love for you to apply to our opening, and we'll be in touch soon!
Requirements
Who We Are Looking For
Following specific expertise is mandatory for the performance of tasks:
Get to know us - SEIDOR
At SEIDOR, we drive client transformation and competitiveness with cutting-edge technology and innovation , with a relentless focus on the human element and a commitment to nurturing talent and sustainable growth.
As a diverse and inclusive company that champions equal opportunity, we boast a team of over 8,000 professionals in our global presence across 45 countries in Europe, Latin America, the USA, the Middle East, Africa, and Asia.
We believe the digital world's challenges require not only the best technologies and partnerships but most importantly, the best people. That's where you come in – we need you to help us scale new heights.
Your Role
- Usability testing and User experience analysis.
- Giving recommendations on user interface at any step of the design of a digital solution (from conceptualization to researching, wireframes sketching, prototyping, user testing and final implementation).
- Visual prototyping of user interface solutions such as designing (low- and high-fidelity) wireframes, mock-ups and story boards which lead to an intuitive and ergonomic user experience for different web products and platforms.
- Creation and maintenance of style guides, brand book and visual component libraries, including sketched concepts and page templates.
- Design considerations on font, visuals, text, the definition of information architecture, interaction workflows and navigation.
- Usability studies
- User requirements research
- Synthesis of UX research, web analytics data, as well as surveys, legacy and organizational goals
- Presents reports
- Creation of graphic elements including illustrations, visuals, infographics, data visualisations, etc.
- Definition of user-centered evaluations, identifying key usability problems and providing recommendations on how to solve them (including the participation in usability studies with users).
- Documentation of code, ensuring easy maintenance & evolution.
- Optimisation of application for maximum performance and scalability.
- Perform user research and interviews, analyse the insights and translate the findings into informed design decisions
- Communicate the organisation’s strategic vision and goals from an end-user’ point of view
- Works closely with business and cross functional teams to reach desired organizational goals
From day one, you’ll find opportunities for personal and professional development within a supportive team environment. We offer:
- A permanent role at a leading tech project firm (subcontractor also possible).
- A hybrid work schedule, blending in-office collaboration with the convenience of working from home.
- Continuous learning and development through SEIDOR Academy.
- A package including salary and additional annual bonus, working equipment, phone and other benefits.
- A dynamic international workplace with diverse teams.
- A commitment to your well-being, work-life balance, and career growth.
- Rapid advancement opportunities in a short period of time.
- Engaging events and a comprehensive onboarding program.
https://www.seidor.com/en-es/talent
If this resonates with you, we'd love for you to apply to our opening, and we'll be in touch soon!
Requirements
Who We Are Looking For
- KNOWLEDGE AND SKILLS
- Usability studies
- Experience as a UX consultant, UX researcher, Digital communicator or equivalent
- A portfolio that shows the ability to work across various industries
- Knowledge of HTML/CSS
- Knowledge of design and graphical tools such as Adobe Photoshop, Illustrator, or similar.
- Experience with UI Design tools - Sketch, Adobe Suite XD or equivalent
- Knowledge of web technologies and standards (e.g. HTML, XML, CSS, SEO, web analytics)
- A plus: Knowledge of eUI framework
- Knowledge of prototyping, wireframing, interaction flows, information architecture and user testing
- Knowledge of UX design best practices, including user interface ergonomics, knowledge of responsive design, data protection and security principles.
- Knowledge of user-centred design principles and methodologies, including development of usability test plans for all stages of a project life-cycle based on defined target audiences, personas and user stories
- Knowledge of user testing through all stages of a project, including different techniques (e.g. eye tracking, dynamic/static verification) and methods of testing (e.g. remote usability testing, A/B testing, hallway testing, post release testing).
- Participatory design (design sprints, visual conversation)
- Agile
- User centred design
- Research techniques
Following specific expertise is mandatory for the performance of tasks:
- Develop trusted relationships with business leaders across a company to help them integrate user experience capabilities as a strategic asset
- Excellent communicator
- Task oriented and result focused
- Maintain high standards for quality of work
- Ability to convince high level management, back up with arguments and confidence
Key Skills
Ranked by relevance
ux
prototyping
wireframes
responsive design
adobe photoshop
user research
wireframing
illustrator
responsive
photoshop
sketch
css
xml
seo
ui
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- Posted
- Jan 09, 2026
- Type
- Contract
- Level
- Mid-Senior
- Location
- Uccle
- Company
- SEIDOR
Industries
Information Services
Categories
Information Technology
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2026-05-26
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View Job Details
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2026-05-25
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Java Software Engineer
2026-05-26
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