Freelancer profile translated to English.
Back to original languageAbout Samy
Senior Web Developer | 12 years of expertise
Do you need to develop a robust web application, or evolve an existing product towards greater stability and performance?
I work as a senior web developer with 12 years of experience in demanding environments.
12 years of experience in high-constraint sectors
I have supported companies from various sectors:
- **Regulated Fintech**: KYC/KYB systems, AML/CFT compliance, banking integrations
- **Crypto**: Exchange platform, transactional API, security management
- **Cybersecurity**: Vulnerability monitoring, compliance management
- **Luxury, Music Industry, and Event Management**: Custom business platforms
This diversity allows me to quickly understand your business challenges, your regulatory or technical constraints, and deliver pragmatic, production-oriented solutions.
What I bring concretely
- Design and maintenance of SaaS applications and business platforms
- Taking over existing projects (refactoring, technical debt reduction)
- Performance and reliability optimizations
- Third-party integrations (payment, electronic signature, marketing...)
- Automations
My approach guarantees a professional and maintainable product: automated tests, code review, technical documentation, secure deployment. No quick fixes or surprises 6 months later.
Have a project to launch or secure? Contact me to discuss it.
English
Native or bilingual
French
Native or bilingual
Japanese
Basic
Remote only
Primarily works remotely
Experience
- RockFiBackend EngineerPRIVATE EQUITYJune 2026 - Today (2 months)Paris, FranceBackend Engineer at RockFi, a next-generation family office reinventing private management by combining human wealth management and technology. I design and develop the backend services (APIs, infra) that power the platform: real-time consolidated reporting, portfolio tracking, and an AI agent dedicated to advisors.
- PaymiumFullstack EngineerPRIVATE EQUITYApril 2021 - May 2026 (5 years and 1 month)Paris, France
- Design, development, and maintenance of the exchange platform and its API, in line with the product roadmap.
- Development and optimization of the KYC/KYB administration platform. Regular monitoring and improvement based on evolving AML/CFT regulations.
- Integration and monitoring of external partners (KYC providers, banking services, electronic signature solutions).
- Creation and maintenance of internal tools for the marketing team (Brevo, Google Tag Manager).
- Technical support.
- Design, development, and maintenance of the exchange platform and its API, in line with the product roadmap. - Development and optimization of the KYC/KYB administration platform. Regular monitoring and improvement based on evolving AML/CFT regulations.- Integration and monitoring of external partners (KYC providers, banking services, electronic signature solutions).
- Creation and maintenance of internal tools for the marketing team (Brevo, Google Tag Manager).
- Technical support.
- Samy KacimiFreelance DeveloperTECHJanuary 2020 - Today (6 years and 7 months)Rouen, FranceFreelance developer in my spare time. I handle various issues- Feature additions- Bug fixes- Code optimization / Performance / Security- Library, gem updates...Clients in various sectors: Luxury, automotive, catering, event management, merchandise, music...
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Education
- Ecole 42Ecole 42201442 est une école dont la pédagogie marche par projets. Sans cours ni professeurs, ni devons réaliser seuls ou en groupe différents projets de programmation dans divers domaines en différents langages, en apprenant à être autonomes et à partager les idées, les connaissances avec ses camarades, et ce afin d'être préparé au mieux au monde professionnel.