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EU remote

UX/UI Designer

bePosted 25 Sept 2026

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About this role

Arηs Group, Part of Accenture, is looking for an experienced UX/UI Designer for one of its clients at the EU Institutions in Brussels. Role & responsibilities Translate business and user requirements into intuitive, functional, and aesthetically pleasing UI solutions that align with user needs and project goals. Analyse user journeys using UX (User Experience) methods (heuristic review, task analysis, analytics review).

Advise cross-functional teams throughout discovery, prototyping, usability testing, and developer handoff; ensure UI consistency and adherence to the design system. Prototype low- and high-fidelity UI with wireframes, mock-ups, and storyboards to validate and iterate toward an intuitive user experience. 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.

Create and maintain a design system (style guide, tokens, components, templates) with versioned libraries, usage guidelines, and governance. Creation of graphical elements including illustrations, visuals, infographics, data visualisations, etc. Plan and run user-centred evaluations (usability tests, heuristic reviews, A/B tests), report issues with severity, evidence, and recommendations. Contribute UI acceptance criteria and test scenarios; support cross-browser/device and visual regression testing and analyse results with developers.

Collaborate closely with UX Analyst and Accessibility Experts to ensure designs are user-validated and compliancy with regulations and policies. Prepare developer handoff deliverables and collaborate via handoff tools to ensure accurate implementation. Advocate for and implement design system components and patterns consistently across all digital products to ensure a cohesive user experience. Your profile Capability to work in an international/multicultural environment, including participation in multi-lingual meetings.

Talent for generating bold, user-centered concepts and capacity to articulate and defend design decisions with evidence (research insights, usability findings, analytics). Proficiency in adapting to and mastering fast-evolving design and prototyping tools and industry trends. Strong interpersonal communication skills in English and/or French. Ability to work in a team as well as autonomously. Results-oriented mindset, focused on delivering.

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Technical skills Knowledge of core web technologies (HTML5, CSS3) with an understanding of W3C standards, accessibility (WCAG), and SEO principles. 6 years of experience with wireframing and interactive prototyping design tools such as Balsamiq, InVision, UxPin, Framer.js, Figma or similar. Knowledge of design and graphical tools such as Adobe Photoshop, Illustrator, or similar. 3 years of experience with collaborative tools such as Atlassian’s Confluence or similar.

6 years of experience applying UX design best practices, including user interface ergonomics, responsive design, data protection and security principles. 3 years of experience applying user-centred design principles and methodologies, including development of usability test plans based on defined target audiences, personas and user stories. 3 years of experience in user testing through all stages of a digital solution, 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). Knowledge in cross-browser compatibility and testing. Knowledge of web ergonomics, usability and accessibility. Knowledge of fundamental visual and typographic design disciplines and principles. 3 years of experience in agile development environments. Understanding of security practices and protocols.

Experience with design system tools and component library management. Certification A certification such as UXQB Certified Professional for Usability and User Experience - Foundation (CPUX-F), Nielsen Norman Group (NN/g) UX Certification, or Google UX Design Certificate would be considered an asset WHAT´S IN IT FOR YOU? We value your contribution, which is why we offer a competitive and attractive salary package. Your wellbeing is our priority – from day one, you are covered by a comprehensive health insurance plan.

Benefit from a convenient meal allowance provided through a ticket restaurant card. Take part in impactful projects that make a difference at both the national and European level. Continue to grow with us through in-house training sessions and a wide range of online learning opportunities. Join a collaborative culture where we regularly celebrate achievements and milestones together. Arηs Group, Part of Accenture, specializes in the management of complex public sector IT projects, including systems integration, informatics and analytics, solution implementation and program management.

Our team helps lead clients through digital and information systems design, bringing expertise in a variety of areas ranging from software development, data science and security management to machine learning, cloud, and mobile development. Arηs Group was acquired by Accenture in July 2024.

Source listing: smartrecruiters_arhs

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