Freelancer profile translated to English.

Description

Senior backend developer specializing in .NET / C#, I assist companies in the design, development, and evolution of robust and maintainable business applications.

With several years of experience in SaaS, I work across the entire chain: architecture, development, testing, deployment, and application maintenance. I work in Agile methodology (Scrum) within multidisciplinary teams.

Stack & skills:

Backend: C#, .NET, ASP.NET Core, Entity Framework

Databases: SQL Server (complex queries, optimization)

Cloud & infra: Azure, asynchronous processing (Hangfire)

Security: JWT authentication, SSO integrations

Architecture: hexagonal, REST API, microservices

Curious and autonomous, I am keenly interested in integrating AI into development workflows. I favor clean, tested, and documented code, as well as clear communication with business teams.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 10km), Versailles (up to 20km)

NAXOS
C# Developer
SOFTWARE PUBLISHING
March 2026 - Today (4 months)
Paris 14 Observatoire, France
SaaS platform undergoing deployment/migration. 10 devs - 5 PO - 2 QA
MAGUERITE - Real Estate CRM SaaS (from scratch) Design and development of backend APIs in .NET 8 (Web API, hexagonal architecture) Implementation of automated tasks (CRON) with Hangfire Integration of external client APIs and management of JWT authentication Writing and maintenance of integration tests Azure deployment and infrastructure with CI/CD Progressive migration of agencies to the new tool — product in production for 1 year
C# SQL Elasticsearch Azure DevOps API
XRAYS TRADING
C# Developer
CONSULTING AND AUDITS
March 2021 - March 2023 (2 years)
OXYGEN SI Refactoring - La Banque Postale Asset Management Design of data integration workers in C# Development of Web APIs for the new IS Definition of code standards and development processes Migration of data from about fifty legacy applications
MERITIS
C# Developer - WPF
CONSULTING AND AUDITS
July 2019 - February 2021 (1 year and 7 months)
SNCF - Railway Modeling (C# / WPF) Data studies and algorithm for track construction SNCF - Route analysis (C# / WPF) Development