Freelancer profile translated to English.
Back to original languageAbout SĂ©bastien
CTO & CEO with +15 years of expertise in e-commerce and AI architecture.
đ Expert Symfony (PHP) + SaaS (React/Next.js), AWS/GCP. Also possesses solid skills in SEO/GEO and referencing strategy. (Search console, OnCrawl, GTM...)
đ Former CTO of Artsper (Marketplace +300K products with +3M monthly sessions): team management of 11 people, internationalization (110 countries), and high-performance hybrid infrastructure.
đ Founder of Daitor (visual recognition algorithm) and Co-Founder of Reepeat.
âïž My expertise:
âąLanguages & Frameworks: PHP, Symfony, Node.js, React, Next.js
âąDatabases: MySQL, MongoDB, Qdrant
âąSearch & Recommendation: Algolia
âąCloud & DevOps: AWS, Google Cloud Platform, CI/CD, Docker, Kubernetes
âąSoftware Architecture: microservices, REST & GraphQL APIs, performance optimization
đ My services:
âąBackend PHP / Symfony development
âąMicroservices creation and scaling
âąArchitecture audit and redesign for high-volume projects
âąCloud integration (AWS / GCP) and CI/CD automation
âąTechnical support for growing teams and projects
đ„ Versatile and results-oriented, I enjoy designing efficient, clean, and sustainable solutions â from prototype to scalable platform.
English
Fluent
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- ArtsperTechnical Director (CTO)E-COMMERCEJune 2014 - Today (12 years and 2 months)Paris, FranceArtsper is a startup that connects contemporary art galleries and art lovers. Founded in 2013, Artsper has established itself as the number 1 marketplace in France for online art sales. Our vision is to democratize contemporary art by making it accessible to everyone.We have implemented a highly scalable architecture, taking into account the various challenges related to marketplaces.Our technical stack is based on an API foundation and uses the following technologies: Symfony 6, MySql, Redis, AWS Cloud, Angular, Serverless, Docker, AIResponsibilities:- Global IT management- Management of a team of 6 developers + 1 graphic designer- Technical referent and SEO manager- Implementation of technical strategies- R&D on marketplace-related issues- Decision-making on planned recruitments- Development of our entire CRM strategy- Agile Scrum methodology- Centralization of our data via Segment
- Reepeat,Co-founder & CTOSeptember 2020 - September 2023 (3 years)Paris, Franceâą SEO Referentâą Technical architecture design and deployment.âą Project management and technical management.âą Cloud solutions integration and microservices management.
- Keyrium,Technical Project ManagerMay 2012 - June 2014 (2 years and 1 month)Nan Sevre, SD, Haitiâą Audit and study of incoming projects.âą Implementation of reporting and writing of test specifications.âą Management of technical teams and monitoring of developments.
Recommendations
TV+2
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Education
- Obtention UE NSY115 â IT Project ManagementConservatoire National des Arts et MĂ©tiers (CNAM)2014o Le modĂšle de dĂ©veloppement d'un logiciel et le cycle de vie. o La conduite d'un projet informatique et ses diffĂ©rentes phases : de l'Ă©tude prĂ©alable Ă la mise en oeuvre - Production des documents. o Les diverses approches des mĂ©thodes de conception - exemple: UML o Estimation des charges, planning
- Professional Bachelor's Degree in ITInstitut Universitaire de Technologie de Haguenau2008Licence spécialisée dans les métiers numériques