Freelancer profile translated to English.

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Description

I help teams regain control of C++ legacy systems that have become difficult to evolve.

I primarily intervene on:

• technical debt reduction

• securing production evolutions

• complex code refactoring

• progressive modernization of existing systems

• improving software maintainability

Specialized in the modernization and stabilization of complex C++ systems in production.

20+ years of experience in IT consulting firms, SMEs, startups, and freelance.

Accustomed to complex environments and full remote work.

I also provide technical support, mentoring, and training on software design, OOP, and architecture

English version:

I help teams regain control of complex C++ legacy systems that have become difficult to maintain and evolve.

With over 20 years of experience (Orange, Amadeus…), I work on production systems where technical debt slows down development and increases risk.

My work typically includes:

refactoring legacy C++ code
improving software architecture
increasing testability and maintainability
supporting teams in taking over existing codebases

I focus on progressive, safe transformations without disrupting production systems.

I am available for freelance missions involving modernization of existing C++ systems (remote possible).

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Lannion (up to 50km), Rennes (up to 10km), Paris (up to 10km)

SASU M87 Dev
Freelance Consultant
January 2022 - Today (4 years and 5 months)
Specialized in the takeover and modernization of critical C++ legacy systems (m87-dev.fr)

Interventions on:
technical debt reduction,
progressive refactoring,
maintainability improvement,
software design and architecture,
stabilization of complex codebases

Training and technical support:
clean architecture
hexagonal architecture
design patterns
good design practices

Personal product project: SparringPoker, a desktop/mobile application developed in C++20 / Qt QML using a hexagonal architecture (sparringpoker.com)
C/C++ Programming Clean Architecture Qt Audit Hexagonal Architecture
Amadeus
Senior Software Engineer | C++, Python
November 2022 - December 2024 (2 years and 1 month)
Amadeus mission, as a contractor via the ESN Klanik
As part of an architectural reorganization decided by Amadeus, progressive redesign of central parts of the train ticket reservation system via the internet: backends composed of multiple C++/Python/FastAPI services each, communicating via REST and SOAP.
Refactoring of certain legacy C++ backends to reduce their technical debt
Work within international teams in a Scrum / SAFe environment.
Daily technical communication in English.
C++ Python FastAPI Git SAFe
IUT de Lannion
Visiting Lecturer
November 2025 - April 2026 (5 months)
Lannion, France
Teaches the software architecture module in BUT (specialty hexagonal architecture).
Master classes
Construction of educational materials
Supervision of tutorials
Capstone project based on a hexagonal architecture, and using the Python/FastAPI technical stack
Python (Programming Language) Software Architecture FastAPI Training Hexagonal Architecture