Job Openings Fullstack Developer

About the job Fullstack Developer

Mission Overview:

Keystone Solutions is seeking experienced Fullstack Developers (Angular/Spring) for a consultancy mission at a client site. In this role, you will support the development of business applications and the modernization of existing application portfolios, with a strong focus on enhancing security, maintainability, performance, and technical sustainability.


Key Responsibilities:

  • Support the team based on needs and planning, working closely with existing development teams.
  • Engage in various projects involving different applications and processes.
  • Modernize or rewrite existing functionalities and develop new features as required.
  • Contribute to the modernization of the HR data management platform (Persys/Syspers), ensuring it evolves into a reference architecture for HR data used by applications.
  • Focus on modernizing data models, integration flows, and the gradual migration of existing applications.
  • Ensure security, quality, and consistency of data throughout the development process.
  • Develop new applications systematically using Angular (17+) and Spring Boot, while also working with legacy technologies (Java EE, JSF, Access, manual processes).

Requirements:

  • Minimum 5+ years of experience in Angular (9+).
  • Minimum 5+ years of experience in Spring (Boot).

Why Join Keystone Solutions:

  • Consultancy Nature: Work on-site and embrace your identity as a consultant.
  • Dynamic Projects: Tackle diverse challenges across various client environments.
  • Turbo-Charged Learning: Experience professional development and broad learning opportunities.
  • Skyrocketing Ambition: Commit to your 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: 15/10/2026 - 05/05/2027 7 months • (full time)


    Skills required:

    • .Net - Level: Confirmed - Most recent: Any time
    • Angular - Level: Confirmed - Most recent: Any time
    • CSS - Level: Confirmed - Most recent: Any time
    • HTML - Level: Confirmed - Most recent: Any time
    • Java - Level: Confirmed - Most recent: Any time
    • Javascript - Level: Confirmed - Most recent: Any time
    • REST - Level: Confirmed - Most recent: Any time
    • Spring - Level: Confirmed - Most recent: Any time
    • SQL - Level: Confirmed - Most recent: Any time

    Language requirements:

    Dutch
    Level Active knowledge
    English
    Level Active knowledge
    French
    Level Active knowledge


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