Freelancer profile translated to English.
Back to original languageAbout Jean-Christophe
With over 15 years of experience in backend development and several years of frontend experience, I anticipate scalability and volume issues and deliver maintainable code.
I worked for a long time in the Java ecosystem. I am now focused on the Node.js ecosystem with TypeScript.
I have held tech lead positions, trained junior developers on several missions, and architected complex systems.
I have worked in companies of all sizes, from startups (Voggt) to financial institutions (SGCIB, Amundi), including scale-ups (Veezu, Fanatics) and medium-sized companies (AEP, AAVA).
Furthermore, I am a proponent of agility, quality code, and emphasize maintainability.
My strength lies in promoting code quality while remaining pragmatic for the benefit of the projects.
I use AI in my daily work to increase my efficiency, while maintaining control over what I produce.
English
Fluent
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- VeezuStaff EngineerOctober 2025 - Today (10 months)Marseille, FranceFull Stack development & InfrastructureWeekly Access Fee calculationAutomatic price surgeTooling development
- DjamoStaff EngineerJune 2025 - October 2025 (4 months)Marseille, FranceSecurity, distributed systems, CI, infrastructure, job scheduling.Business requirements & technical specifications.
- VoggtBack End EngineerApril 2022 - June 2025 (3 years and 2 months)Marseille, FranceScalability, performance, optimizations, lots and lots of features!Tech stack:- TypeScript- Apollo GraphQL- Node.js- Express.js- Typeorm- Redis- PostgreSQL- Grafana- Docker- GCP- Stripe payment flows- Github
Reviews
Antoine
Product designer - DAVID ANTOINE
Reviewed on 7/9/2026
We had a somewhat random performance issue. Jean-Christophe was very effective. He quickly analyzed the problem, then guided us in the solution to implement: adding logs, backend profiling, and adding tests. We fixed the performance issue, and with all that was put in place, we are confident for the future.
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Education
- Computer EngineeringU.T.C.2007
Certifications
- SCJP (Sun Certified Java Programmer) - 84%Sun / Oracle2007
- SCJD (Sun Certified Java Developer) - 97.5%Sun / Oracle2008