UI UX Designer - Major EU Institution in Brussels

Joining KEYES means giving purpose to your talent.

Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES, we are not just looking for technical expertise; we are looking for people who share our values.

Do you want to continue your career and grow within one of Belgium’s leading IT companies?

Join KEYES as a Business Intelligence Expert!

KEYES is a dynamic global organization that takes pride in being the trusted partner of EU Institutions. With strong commitment to excellence and a 30-years track record of delivering high-quality solutions, we are dedicated to supporting the growth and success of our clients. Our Mission is to help our clients keep up with the challenges of digital transformation by providing the right talent at the right time for the right job. To this end, we are constantly looking for talented professionals who are interested in working on challenging international projects and able to deliver high-quality results within multicultural environments. Our services include (but are not limited to) Modernization of Solutions, Digital Workspaces, Infrastructure & Cloud Solutions, Cybersecurity Solutions, Business Software Solutions, Mainframe Solutions, Data & AI Solutions, Advisory Solutions, and Staffing Solutions. Our Headquarters are in Brussels and we have active accounts and offices across Europe (i.e. Luxembourg, Athens, Brussels, etc.)

More information: www.keyes.eu

THE BACKGROUND

For our client, a European Institution based in Brussels, we are looking for an experienced UI/UX Designer to join a long-term mission in a major EU Institution, For the needs of the client, you need be based in the area of Brussels (~2 hours by ground transportation) to work hybrid (in-office 2 times a week).

More specifically, you will be responsible for…

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User research and needs analysis

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Personas, user journeys, and task analysis

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Information architecture and navigation models

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Wireframes, responsive layouts, and interaction design

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Low-fidelity and high-fidelity prototypes

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Usability testing, heuristic evaluation, and findings reports

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Accessible and inclusive design specifications

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Design system assets, component documentation, and UI consistency contributions

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Visual design assets, illustrations, infographics, and data visualisations

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Functional, UX, and developer handoff documentation including acceptance criteria and test scenarios

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Continuous improvement recommendations and knowledge transfer materials will be shared with Project/Service Manager of the customer through the most appropriate channels, depending on their respective types, levels of sensitivity and target audiences (source code control system, email, collaboration sites, encrypted file servers, etc). Approval workflows may apply to some types of deliverables.

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Translate business and user requirements into intuitive, functional, and aesthetically pleasing UI solutions that align with user needs and project goals.

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Analyse user journeys using UX (User Experience) methods (heuristic review, task analysis, analytics review).

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Advise cross-functional teams throughout discovery, prototyping, usability testing, and developer handoff; ensure UI consistency and adherence to the design system.

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Prototype low- and high-fidelity UI with wireframes, mock-ups, and storyboards to validate and iterate toward an intuitive user experience.

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Design and develop responsive UI solutions for various digital products (e.g., web, mobile, tablets) by defining information architecture, interaction workflows, navigation patterns, and applying principles of typography, color, and imagery.

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Create and maintain a design system (style guide, tokens, components, templates) with versioned libraries, usage guidelines, and governance.

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Creation of graphical elements including illustrations, visuals, infographics, data visualisations, etc.

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Plan and run user-centred evaluations (usability tests, heuristic reviews, A/B tests), report issues with severity, evidence, and recommendations.

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Contribute UI acceptance criteria and test scenarios; support cross-browser/device and visual regression testing and analyse results with developers.

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