Translation of business requirements into an UI solution

Consultancy on UI at any step of the design of a digital solution (from brainstorming to research, sketches, prototypes, user tests and final implementation)

Visual prototyping of UI solutions such as designing (low- and high-fidelity) wireframes, mock-ups and story boards which lead to an intuitive user experience

Design and development of UI solutions for different web products and platforms, including showing styling, use of typography, images, text, the definition of Information Architecture, interaction workflows and navigation

Creation and maintenance of style guides, brand book and visual component libraries, including sketched concepts and page templates

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

Definition of user-centred evaluations of UI solutions, identifying key usability problems and providing recommendations on how to solve them (including the participation in usability studies with users)

Contribution to test scenarios and test result analysis regarding the UI components

Front-end development of responsive UI solutions following good coding practices, including creation/correction of CSS and transforming mock-ups into semantic HTML and development of innovative solutions for different platforms as well as integration with DBs or other server-side logic

Documentation of code, ensuring easy maintenance & evolution

Optimisation of application for maximum performance and scalability

B2 level of English minimum. Any level of French is considered an asset.

At least 4 years of specific expertise with Angular

At least 4 years of specific expertise with Javascript/Typescript

At least 2 years of specific expertise with library components (Angular Material, PrimeNG)

At least 2 years of specific expertise with Figma/Adobe Experience Design

At least 1 year of specific expertise with GitLab

Knowledge of web technologies, frameworks and standards such as HTML, XHTML, CSS and jQuery development, W3C, accessibility, SEO, JavaScript, Angular, React, Vue.

Knowledge of wireframing and interactive prototyping design tools such as Balsamiq, InVision, UxPin, Framer.js or similar

Knowledge of design and graphical tools such as Adobe Photoshop, Illustrator, or similar

Knowledge in customisation of collaborative tools such as Atlassian’s Confluence or similar

Knowledge of (web/visual) design, graphical and prototyping tools and software

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)

Knowledge in cross-browser compatibility and testing

Knowledge of web ergonomics, usability and accessibility Knowledge of fundamental visual and typographic design disciplines and principles

Knowledge of prototyping, wireframing, interaction flows, information architecture and user testing

Experience in agile development environments

Understanding of security practices and protocols

English

Angular

Javascript

Typescript

PrimeNG

Figma

GitLab

Web Services

Our client within the European Institutions is currently looking for a Interface Designer to work on the translation of business requirements into an UI solution, and User Experience (UX) analysis.

Public

Interface Designer

Daily rate: €315-€415

Location:

Brussels, Belgium

Apply before:

02/03/2026

Project summary

Languages needed

Main skills

Project description

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