Software engineer Java and C#/.NET

Freelance software engineer, WF DEVELOPMENT

April 2026 to present

Helping companies secure and develop their critical systems.

• September and October 2026: back on the CATS project as a freelance, reinforcing the backend team for Sopra Steria Group.

Java 24 et 25, Spring Boot 3

Software engineer, Sopra Steria Group

August 2025 to March 2026

Delphi cheque management app migrated to Java and Spring Boot (CATS).

• Stories delivered with TDD, unit test coverage above 80%.
• Hexagonal architecture (ports and adapters) and DDD.
• Code review (Clean Code, SOLID).
• Support and backup for the Technical Lead.
• Analysis of the legacy code, specification and estimation.
• Foundation update and Java 24 to 25 upgrade during the project.

IntelliJ Ultimate, Java 24 et 25, Spring Boot 3, SQL, Argo CD, GitHub, Jira

Software engineer, Sopra Steria Group

May to August 2025

Intensive training on Angular, TypeScript, .NET Core and Spring Boot.

Software engineer, Sopra Steria Group

June 2020 to May 2025, client OP Mobility

In charge of maintaining and developing a critical production management application, deployed in 30 factories worldwide.

• 60% fewer incidents through a proactive overhaul of legacy code.
• Operational maintenance, with strict SLA and SLO compliance.
• Technical lead and training, in English, of users and technical teams in the US, India and Europe.
• Major features: stock management, new business processes.

C#, .NET Framework, WinForms, WPF/MVVM, SQL, SharePoint, PowerShell, JavaScript, Git, Tortoise

Software engineer, Sopra Steria Group

January to December 2019, client AMUE (French universities)

Maintenance and development of an administration tool with high data and user volumes.

• Development and performance improvements of SOAP services.

Java 7, Eclipse, SOAP, Git, SQL Server

Software engineer, Sopra Steria Group

December 2015 to December 2018, client CEA (energy)

Maintenance and development of a critical CMMS application suite, in a sector with high security requirements.

• Takeover of the GIE application to get it running again.
• Support and fixes.

SQL Oracle, InforEAM, C#, Gupta