Frontend Angular Developer

Mission Overview:

Keystone Solutions is seeking three Frontend Angular Developers for a consultancy mission at a client site. This role involves working on a significant project aimed at modernizing the application framework of the Walloon-Brussels Federation. As a consultant, you will be hired by Keystone Solutions to work on client projects, specifically focusing on the Design System project.

Responsibilities:

• Participate in updating technical documentation and software architecture.
• Develop technical design and analysis based on functional documentation, migration specifications, and UI mockups.
• Apply and enforce best development practices: clean code, SOLID principles, DRY, accessibility, and maintainability.
• Collaborate within a team of three developers on various migration tasks.
• Upgrade the Design System to Angular 22 and adapt existing components.
• Develop and rewrite application components in semantic HTML and Angular CDK, replacing PrimeNG components.
• Optimize code and rendering performance (response time, memory management, OnPush lifecycle).
• Organize refactoring by simplifying existing code and eliminating obsolete dependencies.
• Participate actively in cross-code reviews.
• Develop and validate unit tests (Vitest) in a zoneless environment to ensure non-regression and high coverage.
• Perform corrective and evolutionary maintenance of components.
• Validate deployment and delivery of the solution (ng-packagr packaging under Bun, library publication).
• Ensure proper behavior of the library in the showcase application and in the execution environments of consuming applications.
• Ensure the quality of developments in line with the client's standards and SonarQube rules.
• Guarantee compliance with digital accessibility criteria (WCAG 2.1 level AA).
• Adhere to deadlines and milestones of the delivery plan.
• Communicate regularly with project stakeholders (Team Leader, Architect, UX/UI team) and provide transparent feedback on assigned activities.
• Assist the Team Leader in qualifying, evaluating, and breaking down work packages in the agile tracking tool.

Why Join Keystone Solutions:

• Consultancy Nature: Engage in on-site work and embrace your consultant identity.
• Dynamic Projects: Tackle diverse challenges across various client environments.
• Turbo-Charged Learning: Experience professional development and broad learning opportunities.
• Skyrocketing Ambition: Commit to career growth within our framework.
• Values: As a
  

  If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

  
  

  Duration: 01/10/2026 - 31/12/2026 3 months • (full time)

  
  

  Skills required:

  • Accessibilité Web - Level: Confirmed - Most recent: This year
  • Agile Scrum - Level: Confirmed - Most recent: 1 to 3 years ago
  • Angular - Level: Confirmed - Most recent: This year
  • Angular CDK - Level: Confirmed - Most recent: This year
  • Architecture de composants & Design Systems - Level: Confirmed - Most recent: 1 to 3 years ago
  • Clean Code & Principes SOLID - Level: Confirmed - Most recent: 1 to 3 years ago
  • HTML5 sémantique & API Web modernes - Level: Confirmed - Most recent: 1 to 3 years ago
  • Tests unitaires (Vitest / JSDOM / tests en mode Zoneless) - Level: Confirmed - Most recent: 1 to 3 years ago
  • TypeScript - Level: Confirmed - Most recent: 1 to 3 years ago
  
  

  Language requirements:

  French
  Level Native