Junior Developer Consultant

Mission Overview:

Keystone Solutions is seeking Junior Developers to join a consultancy mission at a client site. You will be involved in various projects related to the digital transformation of the Office of Birth and Childhood (ONE). This role emphasizes on-site work, allowing you to engage directly with client teams and contribute to impactful solutions.

Responsibilities:

As a Junior Developer, you will carry out the following responsibilities under Keystone Solutions' consultancy model:

• Participate in the technical design of features in collaboration with functional analysts, technical leads, and team members.
• Design application components while adhering to the defined architecture and technical standards.
• Apply best development practices, including Clean Code and quality assurance.
• Identify technical impacts and dependencies with existing components.
• Develop and enhance application modules and components.
• Participate in the development of Backend Java and Frontend Angular components.
• Ensure quality standards are met through unit and integration testing.
• Correct anomalies and implement functional and technical enhancements.
• Engage in refactoring and improving existing code for better readability, maintainability, and performance.
• Participate in code reviews with other developers.
• Assist in the preparation and delivery of developments across different environments.
• Validate deployment and delivery of solutions.
• Adhere to defined delivery processes and standards.
• Follow methodological and technological standards set by the client.
• Ensure comprehensive unit and integration testing coverage.
• Contribute to continuous improvement of development practices.
• Collaborate daily with developers, functional analysts, testers, and other project stakeholders.
• Participate in various SCRUM ceremonies.
• Document developments as necessary and share useful knowledge within the team.

Work Environment:

This mission operates in an Agile/SCRUM environment, utilizing a service-oriented architecture primarily based on Java and Angular technologies. The tech stack includes Angular 21, JAVA8/JEE7, Java 21, Spring Boot, NgRx, DB2, MySQL, and Flyway, with build tools such as Apache Maven, Git/GitLab CI/CD, and Nexus.

Keystone Solutions Advantages:

By joining Keystone Solutions, you will experience:

• Dynamic Projects: Work on diverse challenges across various client environments.
• Turbo-Charged Learning: Benefit from professional development and broad learning experiences.
• Skyrocketing Ambition: Enjoy a commitment 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: 18/09/2026 - 18/11/2026 2 months • (full time)

  Skills required:

  • Angular 21 / Matérial - Level: Confirmed - Most recent: Any time
  • DB2 / MySQL - Level: Junior - Most recent: Any time
  • Déploiement CI/CD (Docker) - Level: Junior - Most recent: Any time
  • Flyway - Level: Junior - Most recent: Any time
  • IndexedDB/Dexie/Service worker - Level: Junior - Most recent: Any time
  • Java - Level: Confirmed - Most recent: Any time
  • Junit / Mockito - Level: Junior - Most recent: Any time
  • REST / OpenAPI - Level: Junior - Most recent: Any time
  • SCRUM - Level: Junior - Most recent: Any time
  • Spring / Sprintboot / JPA - Level: Junior - Most recent: Any time

  Language requirements:

  French
  Level Native