Freelancer profile translated to English.
Back to original languageAbout Cyprien
Applications don't become expensive because they are old.
They do when they become difficult to understand, maintain, and evolve.
For over 13 years, I have been helping my clients regain control of their business applications by reducing the technical complexity that slows down their teams and projects.
My role is to identify the friction points that hinder value delivery:
• Excessive technical debt
• Architecture that has become difficult to evolve
• Complex legacy codebases
• Performance and maintainability issues
• Risks related to dependence on certain key developers
The goal is not simply to improve the code.
It is also and above all to enable teams to develop faster, with less risk.
This translates into a better return on investment in the long term.
Throughout my career, I have supported companies in various sectors, such as Saint-Gobain, Freshmile, Route220 (IT), and Ferroneed, on issues related to software architecture, refactoring, and evolution of existing applications.
I mainly work with organizations that want to:
✔ Reduce hidden costs related to technical debt
✔ Accelerate development cycles
✔ Secure their critical applications
✔ Regain visibility on their software assets
✔ Prepare for future evolutions with confidence
An application can function perfectly but cost a fortune to evolve.
My job is to prevent this from happening.
📍 Based in Lyon
💻 Freelance | PHP, TypeScript, Software Architecture
🤝 Available for audits, legacy system takeovers, refactoring, and technical support missions
French
Native or bilingual
English
Fluent
Spanish
Basic
Remote only
Primarily works remotely
Experience
- FERRONEEDSenior Full-stack DeveloperCIVIL ENGINEERINGApril 2025 - June 2025 (2 months)→ Mission Objective:Ensure the stability and evolution of two business applications in the railway sector.→ Achievements:Fixing critical bugs that improved the performance, stability, and perceived quality of React.js / Symfony 6.3 applications.Adding new front-end and back-end features that optimized team productivity and user experience through a robust REST API with ApiPlatform.Implementing unit and functional tests (Unit/Feature Tests) ensuring reliable delivery, reduced maintenance time, and better continuous integration via GitLab CI/CD and Docker.→ Technical Stack:React.js, **TypeScript**, **PHP 8.3**, Symfony 6.3, ApiPlatform, PostgreSQL, Tailwind CSS, REST API, Unit/Feature Tests, GIT, Gitlab, Docker
- FreshmileSenior Back-end DeveloperAUTOMOBILEAugust 2023 - December 2024 (1 year and 4 months)Freshmile is a mobility operator and infrastructure provider for charging stationsfor electric vehicles.Development and application maintenance of web/mobile APIs and backendsupervision applications (ticketing, back-office, user management, call center, etc.).- Refactoring and optimization of existing applications (PHP / Laravel)- Implementation of the new RESTful API for web and mobile applications / white labels in collaboration with the frontend team- Migration of application logs (200M+) from MySQL to an Elasticsearch stack previously set up and sized- Migration of data related to charging station locations from MySQL to Elasticsearch and implementation of optimized, clustered search by geopoint and geohash- Management of the vehicle charging workflow with Stripe payment- Optimization of MySQL queries- Redefinition of the backend application architecture based on business-oriented software design (Domain-Driven Design)- Frontend audit for improving existing systems (Vue.js, TypeScript)
- EvwayFull-stack DeveloperAUTOMOBILEJanuary 2023 - July 2023 (6 months)Evway provides a platform to help electric car drivers, which can locate all charging stations in Italy and Europe, with useful information for charging: location, power, plug type, access conditions, etc.Development and application maintenance of the B2B platform for managing electric vehicle fleets and charging stations.- Development and application maintenance of the B2B platform- Redesign, architecture update, and optimization of part of the API (PHP / Laravel)- Addition of features and endpoints on the API side (PHP / Laravel)- Addition of frontend features and components (Vuejs, TypeScrypt)
Reviews
Thibaut
Viatori
Reviewed on 5/10/2021
Very good analysis of the cases and perfect execution afterward. Cyprien quickly acquired new skills without difficulty, and the work delivered was completely in line with our expectations.
Laurent
Ambra
Reviewed on 4/25/2019
Cyprien joined as a Front-End/AngularJS developer to finalize a project and integrated the team very quickly. He was able to adapt, work quickly and efficiently in a complex context. He understood the stakes and managed to deliver the product on time, adapting to constraints and compromises. He communicated regularly. I highly recommend Cyprien for your projects.
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Education
- DUT Computer ScienceIUT de Montpellier2013