Our client is a leading Software, Information and Communication Technologies company, operates internationally (Athens, Brussels, Luxembourg, Copenhagen, Stockholm, London, Nicosia, Hong-Kong, Valetta, etc). They are a renowned supplier of IT services to government institutions, multinational corporations, public administrations and multinational companies, research and academic institutes. Role Overview Our client has a vacancy for a Front End Developer (Drupal) fluent in English, to offer his/her services as an expert who will be based in Brussels, Belgium. The work will be carried out either in the companys premises or on site at customer premises. In the context of the first assignment, the successful candidate will be integrated in the Development team of the company that will closely cooperate with a major clients IT team on site. Job Type : Full-time | Permanent Work Type: Onsite Location : Brussels, Belgium Requirements Master degree in IT or relevant discipline, combined with minimum 13 years of relevant working experience in IT At least 10 years of specific expertise in HTML/CSS At least 5 years of specific expertise in JavaScript and associated libraries (jQuery, Ajax, Json, Gsap) At least 5 years of specific expertise in Drupal theming Proven experience with Drupal 8/9/10 Expertise in Drupal theming, Twig templates, and front-end integration of custom modules Experience working with components and component libraries, including integrating components into Drupal templates Understanding of multilingual setups and internationalization (i18n) for global projects Excellent knowledge of Javascript, jQuery, JSON, AJAX Skilled in HTML5, CSS3, SASS Familiarity with modern front-end tools (Webpack, npm, etc.) Experience developing and maintaining responsive newsletter templates (including compatibility testing across major email clients) is considered an asset Ability to produce mockups, wireframes, or design prototypes using tools such as Figma or Adobe XD Understanding of design principles/best practices and constraints such as the Europa Component Library Ability to transfer wireframes into functional interfaces Knowledge of accessibility standards (e.g. WCAG) Experience using Git and collaborative tools like GitHub or GitLab Familiarity with Agile/Scrum workflows and tools like JIRA, Confluence Familiarity with Docker or other containerization tools Strong debugging skills in Drupal environments Familiarity with browser developer tools and performance optimization Excellent command of the English language Responsibilities Implement responsive layouts using HTML5, CSS3/SASS, and JavaScript Build, customize and maintain Twig templates for Drupal Develop and maintain CKEditor custom components Analyse and translate business requirements into UX/UI concepts Propose and refine mockups, wireframes, and design improvements within the branding guidelines constraints; Integrate REST APIs or JSON endpoints for dynamic data presentation Ensure compliance with accessibility standards, such as WCAG Build reusable front-end components using JavaScript