Full Stack Developer

Full Stack Developer – 12 Months Contract – Paris, France

CV’S MUST BE IN ENGLISH
Start Date – 14/01/2026
Hybrid 3 days on site 2 days remote
Must be fluent in French with a good command on English

Required Skills: Must have (MH) / Nice to have (NTH) / Soft skills
 

• • Essential: Solid experience with web & mobile applications in production using React Native MH
  • Experience with a Spring Boot backend framework or equivalent MH
  • Experience with Hexagonal Architecture is preferred
  • Experience with the Angular NTH frontend framework is preferred
  • Proficiency with SQL & NoSQL databases (potentially SQLite)
  • Good experience developing REST (MH) GraphQL NTH APIs
  • Knowledge of microservices would be an asset
  • An affinity for Software Craftsmanship/clean code, which the environment (Squad, CoP, coaches) helps to promote
  • Strong proficiency with Git & initial experience in a DevOps context (CI/CD, with GitHub or similar)
  • Experience with Azure cloud technologies would be a plus

Full Stack Developer responsibilities will include:
 

• Designing & developing the mobile application using React Native, with an MVP approach.
• Ensuring a smooth & high-performing user experience, while adhering to React Native best practices (optimization, modularity, testability).
• Strong expertise in React Native, its ecosystems, & advanced patterns is required.
• Participating in the development of backend APIs using Spring Boot, with GraphQL integration.
• Developing cloud-native web applications (Azure), with the challenge of scaling across multiple sites & internationally.
• Proactive, solution-oriented, & results-driven, as the application is scalable, given that the project operates within a complex business context with processes that are not yet standardized.
• Advanced software craftsmanship & architecture skills.
• Implementing functionalities & associated tests, ensuring code quality (maintainability, testability, security).
• Identify, analyse, & correct bugs & potential security vulnerabilities.
• Participate in database modeling.
• Contribute to technological choices & innovation.

Cross-functional contributions:
 

• • Participate in the design & maintenance of new tools & packages shared across the organization.
  • Challenge the team's vision.
  • Participate in cross-functional Communities of Practice (CoPs) & organizational initiatives.

With over 90 years' combined experience, NES Fircroft (NES) is proud to be the world's leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Chemicals, Construction & Infrastructure, Life Sciences, Mining and Manufacturing sectors worldwide. With more than 80 offices in 45 countries, we are able to provide our clients with the engineering and technical expertise they need, wherever and whenever it is needed. We offer contractors far more than a traditional recruitment service, supporting with everything from securing visas and work permits, to providing market-leading benefits packages and accommodation, ensuring they are safely and compliantly able to support our clients.