UI/UX Designer & Front-End Developer

Reposted 3 Days Ago
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Brussels, BEL
In-Office
Mid level
Information Technology • Professional Services
Digital and Communication Solutions for EU Institutions and International Organisations.
The Role
Design and build user-centred web applications: create wireframes and prototypes, run usability testing, maintain design systems, and implement responsive front-end code (HTML/CSS/JS/Angular) ensuring performance and cross-browser compatibility.
Summary Generated by Built In

We are currently seeking a UI/UX Designer & Front-End Developeto contribute to the design, development and optimisation of user-centred web applications and digital platforms. 

Responsibilities:

  • Translate business requirements into intuitive and effective UI solutions.

  • Perform User Experience (UX) analysis and provide consultancy throughout all design phases (brainstorming, research, sketches, prototypes, user testing, implementation).

  • Design low- and high-fidelity wireframes, mock-ups, storyboards and interactive prototypes.

  • Develop UI solutions for web products and platforms, including information architecture, navigation flows, typography, visuals and interaction workflows.

  • Create and maintain style guides, brand books and visual component libraries.

  • Produce graphical elements such as illustrations, infographics and data visualisations.

  • Conduct user-centred evaluations and usability studies, identifying issues and recommending improvements.

  • Contribute to UI-related test scenarios and analyse test results.

  • Develop responsive front-end solutions following best coding practices (HTML, CSS, JavaScript frameworks).

  • Transform mock-ups into semantic HTML and integrate front-end components with databases or server-side logic.

  • Document code to ensure maintainability and scalability.

  • Optimise applications for maximum performance and cross-browser compatibility.

Technical Skills:

  • Minimum 4 years of experience with Angular and JavaScript/TypeScript.
  • Strong knowledge of web technologies and standards: HTML, XHTML, CSS, JavaScript/TypeScript, Angular, jQuery, React, Vue. (minimum 4 years)

  • Experience with Angular Material and PrimeNG component libraries (minimum 2 years).

  • Experience with GitLab (minimum 1 year).

  • Proficiency with UX/UI and prototyping tools: Figma, Adobe XD, Balsamiq, InVision, UxPin, Framer.js. (minimum 2 years),

  • Advanced skills in design tools such as Adobe Photoshop and Illustrator.

  • Knowledge of UX best practices, responsive design, accessibility (W3C standards), SEO and web ergonomics.

  • Experience conducting usability testing (A/B testing, remote testing, eye tracking, hallway testing, post-release testing).

  • Knowledge of cross-browser compatibility and performance optimisation.

  • Familiarity with Agile development environments.

  • Understanding of security practices, data protection principles and collaborative tools such as Confluence.

Profile:

  • Bachelor’s degree  in IT, Digital Design, Computer Science, or a related field.

  • Strong analytical and problem-solving skills with a user-centred mindset.

  • Creative, confident and able to defend design decisions.

  • Experience working in Agile and fast-changing technological environments.

  • Excellent communication skills; strong command of English (C1/C2), French is an asset.

  • Ability to work in multicultural and multilingual environments and collaborate on large-scale projects.

  • Excellent team player with strong interpersonal skills.

  • High level of discretion and integrity when handling confidential data

Why Cronos Group? 

We’ll propose you: 

  • An attractive salary package  
  • A good work-life balance environment 
  • The assurance of working in cutting-edge technologies in an entrepreneurial spirit. 
  • The opportunity to develop your skills thanks to tailor-made training courses according to your needs 
  • A good job in a friendly place 

If you wish to integrate a dynamic structure on a human scale while working with the latest technologies, don't wait anymore and join Cronos

Top Skills

Adobe Illustrator
Adobe Photoshop
Adobe Xd
Angular
Angular Material
Balsamiq
Confluence
CSS
Figma
Framer.Js
Gitlab
HTML
Invision
JavaScript
Jquery
Primeng
React
Typescript
Uxpin
Vue
Xhtml
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The Company
HQ: Brussel
427 Employees
Year Founded: 2005

What We Do

Cronos Europa is an IT and digital communications company uniquely dedicated to serving the European institutions, agencies and bodies. From the European Union to EUROCONTROL, we partner with a range of supranational and interinstitutional authorities. Our mission is to arm them with the tools they need to thrive in the digital age. Every aspect of our organisation is designed to complement their capabilities - from our people to our processes and our premises. Our brand combines the expertise of former companies Cronos International and C-Dev, with the creative skills of Inspiiro and the breadth of capabilities of the Cronos Group. Today, Cronos Europa employs over 1,000 people in offices across Belgium, Luxembourg and the Netherlands, serving institutions across diverse framework contracts. Cronos Europa is part of the Cronos Group, one of the largest IT service providers in the Benelux, employing over 8,000 people across 200 competence centres. By leveraging the Group’s resources, Cronos Europa can help clients extract value from new and emerging technologies, for everything from Artificial intelligence to Zg Quantum. For spontaneous applications: https://cronoseuropa.breezy.hr/p/7a64ee973c6701-spontaneous-application?state=published

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