Senior Fullstack Java / Flutter Developer - Freelance (M/F)

CONTEXT

As part of the modernization of several mobile applications, we are looking for a Fullstack Java / Flutter Developer to support the progressive rewriting of applications currently developed with Ionic Capacitor towards Flutter.

The mission is part of a long-term application transformation project, with a strong focus on architecture, mobile development, and industrialization, as well as a significant emphasis placed on artificial intelligence in development practices.

MISSIONS

• Participate in the complete rewriting of the application's Java Back For Front (BFF).
• Design, develop, and evolve backend services in a Java / Spring Boot or Micronaut environment.
• Actively participate in the rewriting and development of mobile applications in Flutter.
• Contribute to the design and evolution of a microservices-oriented architecture.
• Develop robust, maintainable, and testable features.
• Implement and maintain unit tests, notably with JUnit.
• Participate in the industrialization of developments and CI/CD pipelines.
• Ensure corrective and evolutionary maintenance of the applications after their rewriting.
• Work within a team organized using Agile methodology.
• Use artificial intelligence tools to optimize development activities.
• Be proactive in proposing new AI use cases, particularly to improve applications, code quality, and the efficiency of development teams.
• Participate in code reviews and contribute to compliance with development best practices.

TOOLS & ENVIRONMENT

• Java
• Spring Boot / Micronaut
• Flutter
• Microservices architecture
• Unit tests / JUnit
• GitLab CI/CD
• Agile methodologies
• Sensitivity to industrialization and software quality practices
• Interest in artificial intelligence applied to software development, notably code assistance tools
• CI/CD
• J2EE / Java EE

WORKING CONDITIONS

• Mission location: Paris
• Long-term mission
• 2 days of remote work
• Professional English mandatory
• Required seniority: 8 to 10 years of experience minimum

1. 8 to 10 years minimum experience in Fullstack development
2. Good mastery of Java backend environments
3. Skills in Flutter mobile development
4. Mastery of Spring Boot and/or Micronaut
5. Knowledge of microservices architecture
6. Experience with unit tests and JUnit
7. Mastery of GitLab CI/CD tools
8. Practice of Agile methodologies
9. Sensitivity to industrialization and software quality practices
10. Interest in artificial intelligence applied to software development, notably code assistance tools