Novancy, a leading staffing and talent recruitment firm specializing in Information Systems and Digital Transformation, is seeking a highly skilled Senior Developer to join a client team focused on the payroll and temporary work industry. The role is fully remote and offers a long‑term contract with opportunities for professional growth.

Key Responsibilities:

• Design, develop, and optimize applications using C# and ASP.NET Core 8, ensuring high performance and scalability.
• Implement asynchronous programming patterns, generics, and design patterns to improve code quality and maintainability.
• Leverage Entity Framework Core to create efficient data access layers, optimizing LINQ and SQL queries for PostgreSQL.
• Design and maintain robust data models in PostgreSQL, focusing on performance and data integrity.
• Develop comprehensive unit tests with xUnit and Moq to guarantee code reliability and facilitate continuous integration.
• Collaborate with cross‑functional teams to translate complex business rules related to payroll and temporary work into technical solutions.
• Take ownership of project deliverables, working independently while ensuring alignment with client objectives.

Qualifications:

• Proven mastery of C# and ASP.NET Core 8.
• Extensive experience with Entity Framework Core and performance tuning.
• Strong PostgreSQL skills for data modeling and optimization.
• Proficiency in unit testing frameworks (xUnit, Moq).
• Experience designing scalable architectures for large‑scale applications.
• Excellent analytical and problem‑solving abilities.
• Knowledge of the payroll and temporary work industry is a significant plus.
• Self‑sufficient, responsible, and capable of working independently.
• French language skills required.

Applicants should be ready to contribute immediately and thrive in a dynamic, remote environment. The position offers competitive compensation and the chance to work on cutting‑edge technology solutions within a supportive, innovative team.