Freelancer profile translated to English.
Back to original languageAbout Jean
I am a technical CTO and Web & Cloud Architect.
I intervene in delicate missions, when internal teams seem to be out of solutions or when the system requires an external perspective.
My role is to restore stability, performance, and technical consistency to projects, without unnecessarily burdening existing structures.
For over ten years, I have been supporting companies of all sizes: startups, SMEs, and large corporations.
I have contributed to various projects: internal platforms, critical APIs, business tools, data collectors, documentary systems, and complex web applications.
My approach consists of quickly understanding the existing architecture, identifying its friction points, and proposing pragmatic, measurable, and sustainable improvements.
My main stack relies on TypeScript, Hono, React, and Vite, deployed on cloud environments (Scaleway, AWS, OVH).
I systematically integrate:
clear infrastructure as code (Terraform CDKTF);
reliable CI/CD pipelines (GitHub Actions, Docker);
and complete observability (Grafana Alloy, OpenTelemetry, logs, and traces).
Companies consult me for:
diagnosing and correcting performance or reliability issues;
auditing and simplifying an architecture;
designing or redesigning a technical foundation;
or supporting their teams on structuring choices.
My philosophy: clarity before complexity, structure before speed.
I provide understandable, documented, and sustainable architectures – designed to remain manageable in the long term.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Aix-en-Provence (up to 50km), Paris (up to km), Marseille (up to 50km), Aix-en-Provence (up to 50km)
Experience
- CajooCustom Back-officeE-COMMERCEApril 2021 - May 2021 (1 month)Paris, FranceDesign and development of a business back-office when Shopify no longer met logistical needs.Implementation of a custom architecture connected to order and stock systems.Result: reduction in processing times and improvement in operational reliability leading to the company's sale.
- GentleDevCEOSOFTWARE PUBLISHINGOctober 2019 - Today (6 years and 10 months)Aix-en-Provence, FranceConsulting and technical development activities for startups, SMEs, and large corporations.I intervene in architecture, audit, and technical structuring missions, often when internal teams encounter complex blockages.My interventions cover application architecture, backend performance, security, CI/CD, and Cloud monitoring.I design sustainable solutions based on TypeScript, Hono, React, Vite, PostgreSQL, and Scaleway / AWS environments.Constant objective: clarify, stabilize, and accelerate systems without complicating them.
- AstranFront-end Audit & RedesignSOFTWARE PUBLISHINGAugust 2022 - September 2022 (1 month)Paris, FranceComprehensive product audit mission and front-end codebase restructuring.I took over the architecture, implemented a clear code organization, reviewed build flows, and supported the team in stabilizing deliveries, improving maintainability, and the project's technical consistency.Finally, I audited the front-end team.
Reviews
G
Geoffroy
Cyberline
Reviewed on 9/1/2022
Jean is incredible, he develops perfectly and above all he has the ability to go beyond his role by perfectly understanding the product side and by being proactive whether on the product, the tech, or the UX and UI.
I actually hired him, which tells you how good he is!
Julien
Twistudio
Reviewed on 11/8/2019
Jean is very professional. He was able to support and advise us throughout the mission while respecting deadlines. We will continue several new projects with Jean, thank you to him!
Recommendations
FU
FU
+1
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Education
- Ecole polytechniqueMaster of Research2014Le Master PIC forme des experts du management de l’innovation, capables de participer, impulser et piloter des processus d’innovation variés : transformations organisationnelles, développement de nouveaux produits, projets de recherche, stratégies de R&D, etc. La pédagogie du master repose sur un équilibre et une synergie entre d’une part des enseignements de haut niveau sur les disciplines clés du management de l’innovation, et d’autre part sur la mobilisation des étudiants sur des situations d’innovation réelles en entreprise sur l’ensemble du cycle du master.
- Télécom ParistechMaster of Science (MS)2013MSc in Multimedia technologies: following scientific courses, acquiring a global vision of computer science field and high-level programming skills, leading end of studies project: “Autonomous Navigation of Aerial Drones”.