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Description

Who am I?

Freelance developer.NET Full Stackspecializing inC#

Over 7 years of experience with complex business applications inevolutionary maintenance

During my missions, I have notably:

- contributed to the reliability and continuous improvement of existing critical systems

- analyzed and managed migrations of VB.NET applications to C#

- designed and developed business applications from end to end

References:

AIRBUS, Crédit Mutuel, Caisse d’Épargne, Adéquat, XPO Logistics.

Types of missions I regularly undertake:

- Taking over and improvinglegacycode to make it scalable and maintainable again

- Development of new projects from A to Z: requirements gathering, technical specification, project management (team of 3), back-end & front-end development, deployment

- Reducing an exploding backlog

Available 7 days a week via Malt messaging.

Response within an hour.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Toulouse (up to 50km)

Airbus
.Net Developer
AVIATION AND AEROSPACE
September 2025 - Today (9 months)
Toulouse, France
Re-insourcing of an external application within AWS. Implementation of SSO and security vulnerability fixes.

- SSO implementation for application access:
• AWS Cognito
- Security vulnerability fixes:
• Analysis of vulnerability reports generated by CheckMarxOne
• Fixes for security vulnerabilities:
o SQL Injection
o CSRF
o XSS
• Upgrade of .Net Framework from 4.5 to .Net Framework 4.8
• Management of application secrets in AWS Secrets Manager
- Technical documentation writing
- Writing the rollback plan from the old application hosted by the provider to the new one
VB.NET C# AWS
Adequat
Lead Dev - Freelance
HUMAN RESOURCES
June 2023 - August 2025 (2 years and 2 months)
Lyon, France
As Lead Dev. Mission for Adequat, an interim sector company. In charge of developing new features for its ERP and bug fixing. Level 2 and 3 technical support. Reverse engineering of the solution responsible for user rights management. Implementation of the vehicle fleet management software.

- Development of new modules
• Employee vehicle fleet management module (with retrieval of existing data)
• Development tools
o Windows 10 environment
o Use of Azure DevOps for source code control and task tracking
o Visual Studio
o C#
o Entity Framework 4.8, .NET CORE 6
- Technical support for team members
• Implementation of GitFlow for source code management
• Pedagogy and sharing of best practices with junior team members
- Analysis of old applications for migration
• Reading existing code
• Writing an analysis report listing all rules
• SQL Server access rights management application (OLAP permissions)
- Evolution of a data replication application
• Solution for retrieving data from the BullHorn ERP via API calls
• Understanding of the existing application
• Modification of the existing application to manage multiple brands
- User support
• Contacting users by phone to understand their problems
• Specification of the most suitable solution
• Planning of development and problem resolution date
- Implementation of CI/CD pipelines using Azure DevOps
C# SQL Azure DevOps ASP.NET Core
SOLUTEC
Systems Engineer
BANKING AND INSURANCE
September 2022 - May 2023 (8 months)
Lyon, France
Mission for Euro-Information. Responsible for developing applications using the C# DevBooster framework for the back-end and XAML pages for the front-end. Migration of intranet applications and bug fixing. Technical support for team members.
C# ASP.NET MVC API WPF