{"id":3004587,"url":"https://alion.io/job/uni-systems-uiux-designer","title":"UI/UX Designer","company":{"id":55545,"name":"Uni Systems","domain":"unisystems.com","url":"https://alion.io/company/uni-systems","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":88,"open_postings":6,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":17,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Design","role_family":"Design","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Brussels, Belgium"],"countries":["BE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"Adobe Photoshop","optional":false},{"name":"Adobe XD","optional":false},{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"Confluence","optional":false},{"name":"Drupal","optional":false},{"name":"Figma","optional":false},{"name":"JavaScript","optional":false},{"name":"Jira","optional":false},{"name":"React.js","optional":false},{"name":"Sass","optional":false},{"name":"Vue.js","optional":false},{"name":"WordPress","optional":false},{"name":"PHP","optional":true},{"name":"TypeScript","optional":true}],"status":"closed","first_seen_at":"2026-10-21T13:16:57Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-28T15:47:39Z","board_verified":false,"closed_at":"2026-10-28T15:47:39Z","days_open":7,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":7},"description":"At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Full-Stack Developer to join our UniQue team.\nWhat will you be doing in this role?\n\nTranslate business and user requirements into intuitive, accessible, and visually coherent user interface solutions, ensuring an optimal balance between usability, functionality, and visual appeal.\nAnalyze user journeys and interface requirements through heuristic reviews, task analysis, and analytics-based insights to identify user needs, usability challenges, and opportunities for improvement.\nCreate wireframes, mock-ups, and low- to high-fidelity interactive prototypes to explore concepts, validate design decisions, and support iterative design refinement.\nDesign responsive web and mobile interfaces, defining clear information architecture, effective navigation patterns, and seamless interaction workflows to enhance the overall user experience.\nDevelop and maintain design system components, style guides, and graphical assets, ensuring consistency, scalability, and adherence to established design standards across products.\nPlan and conduct usability evaluations and user testing activities, documenting findings and reporting issues with appropriate severity ratings, supporting evidence, and actionable recommendations.\nContribute to the definition of UI acceptance criteria and test scenarios, ensuring compliance with accessibility standards (WCAG) and compatibility across different browsers, devices, and screen sizes.\nPreparation of developer handoff deliverables and collaboration with developers and accessibility experts for accurate implementation.\nRequirements\nWhat do you need to succeed in this position?\nMaster’s degree in information technology and a minimum of 15 years of relevant professional experience, or Bachelor's degree in Information Technology and a minimum of 17 years of relevant professional experience.\nVery good command of English (Level B2 or higher), both written and spoken, according to the Common European Framework of Reference for Languages (CEFR).\nMinimum 15 years of professional experience in UI/UX design and web interface development.\nProven experience applying user-centered design methodologies, including UX research, persona creation, user journey mapping, and user story analysis.\nExperience planning, conducting, and evaluating usability tests, including remote testing, A/B testing, and hallway testing.\nStrong experience creating wireframes, mock-ups, and interactive prototypes using Figma or similar design and prototyping tools.\nExperience using graphic design tools such as Adobe Photoshop, Adobe XD, Illustrator, or equivalent solutions.\nProven experience developing responsive and user-friendly interfaces using HTML5, CSS3/SCSS, and JavaScript.\nExperience working with modern front-end frameworks such as React, Angular, or Vue.js.\nExperience performing responsive design validation and cross-browser compatibility testing across multiple devices and platforms.\nStrong knowledge of W3C standards, web ergonomics, and SEO best practices related to interface design and development.\nProven experience designing accessible interfaces in compliance with WCAG accessibility standards.\nExperience applying data protection, privacy, and security principles within UI/UX design activities.\nExperience creating, maintaining, and governing design systems, including style guides, design tokens, and reusable component libraries.\nExperience working in Agile environments and using collaboration tools such as Confluence and Jira.\nExperience preparing design specifications, documentation, and developer handoff deliverables.\n Ability to collaborate effectively with developers, business stakeholders, and accessibility experts to ensure accurate implementation of design solutions.\n Experience with institutional design systems or CMS front-end theming platforms (e.g., Drupal or WordPress) will be considered an asset.\nExperience working within an international public institution is highly desirable.\nAt Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. 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